diff --git a/core/java/android/hardware/face/IFaceService.aidl b/core/java/android/hardware/face/IFaceService.aidl
index 553d9f7..5a0f3db 100644
--- a/core/java/android/hardware/face/IFaceService.aidl
+++ b/core/java/android/hardware/face/IFaceService.aidl
@@ -164,15 +164,9 @@
     void getFeature(IBinder token, int userId, int feature, IFaceServiceReceiver receiver,
             String opPackageName);
 
-    // Registers all HIDL and AIDL sensors. Only HIDL sensor properties need to be provided, because
-    // AIDL sensor properties are retrieved directly from the available HALs. If no HIDL HALs exist,
-    // hidlSensors must be non-null and empty. See AuthService.java
-    @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void registerAuthenticators(in List<FaceSensorPropertiesInternal> hidlSensors);
-
     //Register all available face sensors.
     @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void registerAuthenticatorsLegacy(in FaceSensorConfigurations faceSensorConfigurations);
+    void registerAuthenticators(in FaceSensorConfigurations faceSensorConfigurations);
 
     // Adds a callback which gets called when the service registers all of the face
     // authenticators. The callback is automatically removed after it's invoked.
diff --git a/core/java/android/hardware/fingerprint/IFingerprintService.aidl b/core/java/android/hardware/fingerprint/IFingerprintService.aidl
index 8b37c24..6a96ac4 100644
--- a/core/java/android/hardware/fingerprint/IFingerprintService.aidl
+++ b/core/java/android/hardware/fingerprint/IFingerprintService.aidl
@@ -177,13 +177,7 @@
 
     //Register all available fingerprint sensors.
     @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void registerAuthenticatorsLegacy(in FingerprintSensorConfigurations fingerprintSensorConfigurations);
-
-    // Registers all HIDL and AIDL sensors. Only HIDL sensor properties need to be provided, because
-    // AIDL sensor properties are retrieved directly from the available HALs. If no HIDL HALs exist,
-    // hidlSensors must be non-null and empty. See AuthService.java
-    @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void registerAuthenticators(in List<FingerprintSensorPropertiesInternal> hidlSensors);
+    void registerAuthenticators(in FingerprintSensorConfigurations fingerprintSensorConfigurations);
 
     // Adds a callback which gets called when the service registers all of the fingerprint
     // authenticators. The callback is automatically removed after it's invoked.
diff --git a/services/core/java/com/android/server/biometrics/AuthService.java b/services/core/java/com/android/server/biometrics/AuthService.java
index 7df63b1..11cca66 100644
--- a/services/core/java/com/android/server/biometrics/AuthService.java
+++ b/services/core/java/com/android/server/biometrics/AuthService.java
@@ -25,15 +25,12 @@
 import static android.Manifest.permission.USE_BIOMETRIC;
 import static android.Manifest.permission.USE_BIOMETRIC_INTERNAL;
 import static android.Manifest.permission.USE_FINGERPRINT;
-import static android.hardware.biometrics.BiometricAuthenticator.TYPE_FACE;
-import static android.hardware.biometrics.BiometricAuthenticator.TYPE_FINGERPRINT;
 import static android.hardware.biometrics.BiometricAuthenticator.TYPE_IRIS;
 import static android.hardware.biometrics.BiometricAuthenticator.TYPE_NONE;
 import static android.hardware.biometrics.BiometricConstants.BIOMETRIC_ERROR_CANCELED;
 import static android.hardware.biometrics.BiometricManager.Authenticators;
 
 import android.annotation.NonNull;
-import android.annotation.Nullable;
 import android.app.AppOpsManager;
 import android.content.Context;
 import android.content.pm.PackageManager;
@@ -778,13 +775,7 @@
             hidlConfigs = null;
         }
 
-        if (com.android.server.biometrics.Flags.deHidl()) {
-            registerAuthenticators();
-        } else {
-            // Registers HIDL and AIDL authenticators, but only HIDL configs need to be provided.
-            registerAuthenticators(hidlConfigs);
-        }
-
+        registerAuthenticators();
         mInjector.publishBinderService(this, mImpl);
     }
 
@@ -874,7 +865,7 @@
 
             if (faceService != null) {
                 try {
-                    faceService.registerAuthenticatorsLegacy(mFaceSensorConfigurations);
+                    faceService.registerAuthenticators(mFaceSensorConfigurations);
                 } catch (RemoteException e) {
                     Slog.e(TAG, "RemoteException when registering face authenticators", e);
                 }
@@ -912,8 +903,7 @@
 
             if (fingerprintService != null) {
                 try {
-                    fingerprintService.registerAuthenticatorsLegacy(
-                            mFingerprintSensorConfigurations);
+                    fingerprintService.registerAuthenticators(mFingerprintSensorConfigurations);
                 } catch (RemoteException e) {
                     Slog.e(TAG, "RemoteException when registering fingerprint authenticators", e);
                 }
@@ -948,78 +938,6 @@
         return configStrings;
     }
 
-    /**
-     * Registers HIDL and AIDL authenticators for all of the available modalities.
-     *
-     * @param hidlSensors Array of {@link SensorConfig} configuration for all of the HIDL sensors
-     *                    available on the device. This array may contain configuration for
-     *                    different modalities and different sensors of the same modality in
-     *                    arbitrary order. Can be null if no HIDL sensors exist on the device.
-     */
-    private void registerAuthenticators(@Nullable SensorConfig[] hidlSensors) {
-        List<FingerprintSensorPropertiesInternal> hidlFingerprintSensors = new ArrayList<>();
-        List<FaceSensorPropertiesInternal> hidlFaceSensors = new ArrayList<>();
-        // Iris doesn't have IrisSensorPropertiesInternal, using SensorPropertiesInternal instead.
-        List<SensorPropertiesInternal> hidlIrisSensors = new ArrayList<>();
-
-        if (hidlSensors != null) {
-            for (SensorConfig sensor : hidlSensors) {
-                Slog.d(TAG, "Registering HIDL ID: " + sensor.id + " Modality: " + sensor.modality
-                        + " Strength: " + sensor.strength);
-                switch (sensor.modality) {
-                    case TYPE_FINGERPRINT:
-                        hidlFingerprintSensors.add(
-                                getHidlFingerprintSensorProps(sensor.id, sensor.strength));
-                        break;
-
-                    case TYPE_FACE:
-                        hidlFaceSensors.add(getHidlFaceSensorProps(sensor.id, sensor.strength));
-                        break;
-
-                    case TYPE_IRIS:
-                        hidlIrisSensors.add(getHidlIrisSensorProps(sensor.id, sensor.strength));
-                        break;
-
-                    default:
-                        Slog.e(TAG, "Unknown modality: " + sensor.modality);
-                }
-            }
-        }
-
-        final IFingerprintService fingerprintService = mInjector.getFingerprintService();
-        if (fingerprintService != null) {
-            try {
-                fingerprintService.registerAuthenticators(hidlFingerprintSensors);
-            } catch (RemoteException e) {
-                Slog.e(TAG, "RemoteException when registering fingerprint authenticators", e);
-            }
-        } else if (hidlFingerprintSensors.size() > 0) {
-            Slog.e(TAG, "HIDL fingerprint configuration exists, but FingerprintService is null.");
-        }
-
-        final IFaceService faceService = mInjector.getFaceService();
-        if (faceService != null) {
-            try {
-                faceService.registerAuthenticators(hidlFaceSensors);
-            } catch (RemoteException e) {
-                Slog.e(TAG, "RemoteException when registering face authenticators", e);
-            }
-        } else if (hidlFaceSensors.size() > 0) {
-            Slog.e(TAG, "HIDL face configuration exists, but FaceService is null.");
-        }
-
-        final IIrisService irisService = mInjector.getIrisService();
-        if (irisService != null) {
-            try {
-                irisService.registerAuthenticators(hidlIrisSensors);
-            } catch (RemoteException e) {
-                Slog.e(TAG, "RemoteException when registering iris authenticators", e);
-            }
-        } else if (hidlIrisSensors.size() > 0) {
-            Slog.e(TAG, "HIDL iris configuration exists, but IrisService is null.");
-        }
-    }
-
     private void checkInternalPermission() {
         getContext().enforceCallingOrSelfPermission(USE_BIOMETRIC_INTERNAL,
                 "Must have USE_BIOMETRIC_INTERNAL permission");
diff --git a/services/core/java/com/android/server/biometrics/BiometricHandlerProvider.java b/services/core/java/com/android/server/biometrics/BiometricHandlerProvider.java
index e578861..91cabb5 100644
--- a/services/core/java/com/android/server/biometrics/BiometricHandlerProvider.java
+++ b/services/core/java/com/android/server/biometrics/BiometricHandlerProvider.java
@@ -21,7 +21,6 @@
 
 import android.os.Handler;
 import android.os.HandlerThread;
-import android.os.Looper;
 
 /**
  * This class provides the handler to process biometric operations.
@@ -76,11 +75,8 @@
     }
 
     private Handler getNewHandler(String tag, int priority) {
-        if (Flags.deHidl()) {
-            HandlerThread handlerThread = new HandlerThread(tag, priority);
-            handlerThread.start();
-            return new Handler(handlerThread.getLooper());
-        }
-        return new Handler(Looper.getMainLooper());
+        HandlerThread handlerThread = new HandlerThread(tag, priority);
+        handlerThread.start();
+        return new Handler(handlerThread.getLooper());
     }
 }
diff --git a/services/core/java/com/android/server/biometrics/log/BiometricContext.java b/services/core/java/com/android/server/biometrics/log/BiometricContext.java
index 7f04628..7a8e25b 100644
--- a/services/core/java/com/android/server/biometrics/log/BiometricContext.java
+++ b/services/core/java/com/android/server/biometrics/log/BiometricContext.java
@@ -81,22 +81,6 @@
     boolean isHardwareIgnoringTouches();
 
     /**
-     * Subscribe to context changes.
-     *
-     * Note that this method only notifies for properties that are visible to the HAL.
-     *
-     * @param context context that will be modified when changed
-     * @param consumer callback when the context is modified
-     *
-     * @deprecated instead use {@link BiometricContext#subscribe(OperationContextExt, Consumer,
-     *                                                           Consumer, AuthenticateOptions)}
-     * TODO (b/294161627): Delete this API once Flags.DE_HIDL is removed.
-     */
-    @Deprecated
-    void subscribe(@NonNull OperationContextExt context,
-            @NonNull Consumer<OperationContext> consumer);
-
-    /**
      * Subscribe to context changes and start the HAL operation.
      *
      * Note that this method only notifies for properties that are visible to the HAL.
diff --git a/services/core/java/com/android/server/biometrics/log/BiometricContextProvider.java b/services/core/java/com/android/server/biometrics/log/BiometricContextProvider.java
index d8dfa60..a17de3d 100644
--- a/services/core/java/com/android/server/biometrics/log/BiometricContextProvider.java
+++ b/services/core/java/com/android/server/biometrics/log/BiometricContextProvider.java
@@ -229,16 +229,6 @@
 
     @Override
     public void subscribe(@NonNull OperationContextExt context,
-            @NonNull Consumer<OperationContext> consumer) {
-        mSubscribers.put(context, consumer);
-        // TODO(b/294161627) Combine the getContext/subscribe APIs to avoid race
-        if (context.getDisplayState() != getDisplayState()) {
-            consumer.accept(context.update(this, context.isCrypto()).toAidlContext());
-        }
-    }
-
-    @Override
-    public void subscribe(@NonNull OperationContextExt context,
             @NonNull Consumer<OperationContext> startHalConsumer,
             @NonNull Consumer<OperationContext> updateContextConsumer,
             @Nullable AuthenticateOptions options) {
diff --git a/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
index 4fa8741..1e2451c 100644
--- a/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/AuthenticationClient.java
@@ -35,7 +35,6 @@
 import android.util.Slog;
 
 import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
@@ -117,24 +116,20 @@
 
     @LockoutTracker.LockoutMode
     public int handleFailedAttempt(int userId) {
-        if (Flags.deHidl()) {
-            if (mLockoutTracker != null) {
-                mLockoutTracker.addFailedAttemptForUser(getTargetUserId());
-            }
-            @LockoutTracker.LockoutMode final int lockoutMode =
-                    getLockoutTracker().getLockoutModeForUser(userId);
-            final PerformanceTracker performanceTracker =
-                    PerformanceTracker.getInstanceForSensorId(getSensorId());
-            if (lockoutMode == LockoutTracker.LOCKOUT_PERMANENT) {
-                performanceTracker.incrementPermanentLockoutForUser(userId);
-            } else if (lockoutMode == LockoutTracker.LOCKOUT_TIMED) {
-                performanceTracker.incrementTimedLockoutForUser(userId);
-            }
-
-            return lockoutMode;
-        } else {
-            return LockoutTracker.LOCKOUT_NONE;
+        if (mLockoutTracker != null) {
+            mLockoutTracker.addFailedAttemptForUser(getTargetUserId());
         }
+        @LockoutTracker.LockoutMode final int lockoutMode =
+                getLockoutTracker().getLockoutModeForUser(userId);
+        final PerformanceTracker performanceTracker =
+                PerformanceTracker.getInstanceForSensorId(getSensorId());
+        if (lockoutMode == LockoutTracker.LOCKOUT_PERMANENT) {
+            performanceTracker.incrementPermanentLockoutForUser(userId);
+        } else if (lockoutMode == LockoutTracker.LOCKOUT_TIMED) {
+            performanceTracker.incrementTimedLockoutForUser(userId);
+        }
+
+        return lockoutMode;
     }
 
     protected long getStartTimeMs() {
diff --git a/services/core/java/com/android/server/biometrics/sensors/BiometricScheduler.java b/services/core/java/com/android/server/biometrics/sensors/BiometricScheduler.java
index 89e08c1..82d5d4d 100644
--- a/services/core/java/com/android/server/biometrics/sensors/BiometricScheduler.java
+++ b/services/core/java/com/android/server/biometrics/sensors/BiometricScheduler.java
@@ -19,9 +19,9 @@
 import static com.android.server.biometrics.sensors.BiometricSchedulerOperation.STATE_STARTED;
 
 import android.annotation.IntDef;
-import android.annotation.MainThread;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.WorkerThread;
 import android.content.Context;
 import android.hardware.biometrics.IBiometricService;
 import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
@@ -38,7 +38,6 @@
 import com.android.modules.expresslog.Counter;
 import com.android.server.biometrics.BiometricSchedulerProto;
 import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
 
 import java.io.PrintWriter;
@@ -65,9 +64,8 @@
  * @param <T> Hal instance for starting the user.
  * @param <U> Session associated with the current user id.
  *
- * TODO: (b/304604965) Update thread annotation when FLAGS_DE_HIDL is removed.
  */
-@MainThread
+@WorkerThread
 public class BiometricScheduler<T, U> {
 
     private static final String TAG = "BiometricScheduler";
@@ -176,7 +174,7 @@
                     Slog.w(TAG, "operation is already null or different (reset?): "
                             + mCurrentOperation);
                 }
-                startNextOperationIfIdle();
+                checkCurrentUserAndStartNextOperation();
             });
         }
     }
@@ -219,7 +217,7 @@
                 mRecentOperations.add(mCurrentOperation.getProtoEnum());
                 mCurrentOperation = null;
                 mTotalOperationsHandled++;
-                startNextOperationIfIdle();
+                checkCurrentUserAndStartNextOperation();
             });
         }
     };
@@ -304,15 +302,7 @@
         return mInternalCallback;
     }
 
-    protected void startNextOperationIfIdle() {
-        if (Flags.deHidl()) {
-            startNextOperation();
-        } else {
-            startNextOperationIfIdleLegacy();
-        }
-    }
-
-    protected void startNextOperation() {
+    protected void checkCurrentUserAndStartNextOperation() {
         if (mCurrentOperation != null) {
             Slog.v(TAG, "Not idle, current operation: " + mCurrentOperation);
             return;
@@ -326,7 +316,7 @@
         final int nextUserId = mPendingOperations.getFirst().getTargetUserId();
 
         if (nextUserId == currentUserId || mPendingOperations.getFirst().isStartUserOperation()) {
-            startNextOperationIfIdleLegacy();
+            startNextOperationIfIdle();
         } else if (currentUserId == UserHandle.USER_NULL && mUserSwitchProvider != null) {
             final BaseClientMonitor startClient =
                     mUserSwitchProvider.getStartUserClient(nextUserId);
@@ -357,7 +347,7 @@
         }
     }
 
-    protected void startNextOperationIfIdleLegacy() {
+    protected void startNextOperationIfIdle() {
         if (mCurrentOperation != null) {
             Slog.v(TAG, "Not idle, current operation: " + mCurrentOperation);
             return;
@@ -422,7 +412,7 @@
                 // run these. A single request from the manager layer to the service layer may
                 // actually be multiple operations (i.e. updateActiveUser + authenticate).
                 mCurrentOperation = null;
-                startNextOperationIfIdle();
+                checkCurrentUserAndStartNextOperation();
             }
         } else {
             try {
@@ -459,7 +449,7 @@
         } else {
             Slog.e(TAG, "[Unable To Start] Prepared client: " + mCurrentOperation);
             mCurrentOperation = null;
-            startNextOperationIfIdle();
+            checkCurrentUserAndStartNextOperation();
         }
     }
 
@@ -504,7 +494,7 @@
             Slog.d(TAG, "[Cancelling Interruptable]: " + mCurrentOperation);
             mCurrentOperation.cancel(mHandler, mInternalCallback);
         } else {
-            startNextOperationIfIdle();
+            checkCurrentUserAndStartNextOperation();
         }
     }
 
diff --git a/services/core/java/com/android/server/biometrics/sensors/UserAwareBiometricScheduler.java b/services/core/java/com/android/server/biometrics/sensors/UserAwareBiometricScheduler.java
deleted file mode 100644
index 7ca10e3..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/UserAwareBiometricScheduler.java
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors;
-
-import static com.android.server.biometrics.sensors.BiometricSchedulerOperation.STATE_STARTED;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.content.Context;
-import android.hardware.biometrics.IBiometricService;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.ServiceManager;
-import android.os.UserHandle;
-import android.util.Slog;
-
-import com.android.internal.annotations.VisibleForTesting;
-import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
-
-/**
- * A user-aware scheduler that requests user-switches based on scheduled operation's targetUserId.
- * TODO (b/304604965): Remove class when Flags.FLAG_DE_HIDL is removed.
- *
- * @param <T> Hal instance for starting the user.
- * @param <U> Session associated with the current user id.
- */
-public class UserAwareBiometricScheduler<T, U> extends BiometricScheduler<T, U> {
-
-    private static final String TAG = "UaBiometricScheduler";
-
-    /**
-     * Interface to retrieve the owner's notion of the current userId. Note that even though
-     * the scheduler can determine this based on its history of processed clients, we should still
-     * query the owner since it may be cleared due to things like HAL death, etc.
-     */
-    public interface CurrentUserRetriever {
-        int getCurrentUserId();
-    }
-
-    public interface UserSwitchCallback {
-        @NonNull StopUserClient<?> getStopUserClient(int userId);
-        @NonNull StartUserClient<?, ?> getStartUserClient(int newUserId);
-    }
-
-    @NonNull private final CurrentUserRetriever mCurrentUserRetriever;
-    @NonNull private final UserSwitchCallback mUserSwitchCallback;
-    @Nullable private StopUserClient<?> mStopUserClient;
-
-    private class ClientFinishedCallback implements ClientMonitorCallback {
-        @NonNull private final BaseClientMonitor mOwner;
-
-        ClientFinishedCallback(@NonNull BaseClientMonitor owner) {
-            mOwner = owner;
-        }
-
-        @Override
-        public void onClientFinished(@NonNull BaseClientMonitor clientMonitor, boolean success) {
-            mHandler.post(() -> {
-                Slog.d(TAG, "[Client finished] " + clientMonitor + ", success: " + success);
-
-                // Set mStopUserClient to null when StopUserClient fails. Otherwise it's possible
-                // for that the queue will wait indefinitely until the field is cleared.
-                if (clientMonitor instanceof StopUserClient<?>) {
-                    if (!success) {
-                        Slog.w(TAG, "StopUserClient failed(), is the HAL stuck? "
-                                + "Clearing mStopUserClient");
-                    }
-                    mStopUserClient = null;
-                }
-                if (mCurrentOperation != null && mCurrentOperation.isFor(mOwner)) {
-                    mCurrentOperation = null;
-                } else {
-                    // can happen if the hal dies and is usually okay
-                    // do not unset the current operation that may be newer
-                    Slog.w(TAG, "operation is already null or different (reset?): "
-                            + mCurrentOperation);
-                }
-                startNextOperationIfIdle();
-            });
-        }
-    }
-
-    @VisibleForTesting
-    public UserAwareBiometricScheduler(@NonNull String tag,
-            @NonNull Handler handler,
-            @SensorType int sensorType,
-            @Nullable GestureAvailabilityDispatcher gestureAvailabilityDispatcher,
-            @NonNull IBiometricService biometricService,
-            @NonNull CurrentUserRetriever currentUserRetriever,
-            @NonNull UserSwitchCallback userSwitchCallback) {
-        super(handler, sensorType, gestureAvailabilityDispatcher, biometricService,
-                LOG_NUM_RECENT_OPERATIONS);
-
-        mCurrentUserRetriever = currentUserRetriever;
-        mUserSwitchCallback = userSwitchCallback;
-    }
-
-    public UserAwareBiometricScheduler(@NonNull String tag,
-            @SensorType int sensorType,
-            @Nullable GestureAvailabilityDispatcher gestureAvailabilityDispatcher,
-            @NonNull CurrentUserRetriever currentUserRetriever,
-            @NonNull UserSwitchCallback userSwitchCallback) {
-        this(tag, new Handler(Looper.getMainLooper()), sensorType, gestureAvailabilityDispatcher,
-                IBiometricService.Stub.asInterface(
-                        ServiceManager.getService(Context.BIOMETRIC_SERVICE)),
-                currentUserRetriever, userSwitchCallback);
-    }
-
-    @Override
-    protected void startNextOperationIfIdle() {
-        if (mCurrentOperation != null) {
-            Slog.v(TAG, "Not idle, current operation: " + mCurrentOperation);
-            return;
-        }
-        if (mPendingOperations.isEmpty()) {
-            Slog.d(TAG, "No operations, returning to idle");
-            return;
-        }
-
-        final int currentUserId = mCurrentUserRetriever.getCurrentUserId();
-        final int nextUserId = mPendingOperations.getFirst().getTargetUserId();
-
-        if (nextUserId == currentUserId || mPendingOperations.getFirst().isStartUserOperation()) {
-            super.startNextOperationIfIdle();
-        } else if (currentUserId == UserHandle.USER_NULL) {
-            final BaseClientMonitor startClient =
-                    mUserSwitchCallback.getStartUserClient(nextUserId);
-            final ClientFinishedCallback finishedCallback =
-                    new ClientFinishedCallback(startClient);
-
-            Slog.d(TAG, "[Starting User] " + startClient);
-            mCurrentOperation = new BiometricSchedulerOperation(
-                    startClient, finishedCallback, STATE_STARTED);
-            startClient.start(finishedCallback);
-        } else {
-            if (mStopUserClient != null) {
-                Slog.d(TAG, "[Waiting for StopUser] " + mStopUserClient);
-            } else {
-                mStopUserClient = mUserSwitchCallback
-                        .getStopUserClient(currentUserId);
-                final ClientFinishedCallback finishedCallback =
-                        new ClientFinishedCallback(mStopUserClient);
-
-                Slog.d(TAG, "[Stopping User] current: " + currentUserId
-                        + ", next: " + nextUserId + ". " + mStopUserClient);
-                mCurrentOperation = new BiometricSchedulerOperation(
-                        mStopUserClient, finishedCallback, STATE_STARTED);
-                mStopUserClient.start(finishedCallback);
-            }
-        }
-    }
-
-    @Override
-    public void onUserStopped() {
-        if (mStopUserClient == null) {
-            Slog.e(TAG, "Unexpected onUserStopped");
-            return;
-        }
-
-        Slog.d(TAG, "[OnUserStopped]: " + mStopUserClient);
-        mStopUserClient.onUserStopped();
-        mStopUserClient = null;
-    }
-
-    @VisibleForTesting
-    @Nullable public StopUserClient<?> getStopUserClient() {
-        return mStopUserClient;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/FaceService.java b/services/core/java/com/android/server/biometrics/sensors/face/FaceService.java
index a946af8..bd6d593 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/FaceService.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/FaceService.java
@@ -72,9 +72,6 @@
 import com.android.server.biometrics.sensors.LockoutResetDispatcher;
 import com.android.server.biometrics.sensors.LockoutTracker;
 import com.android.server.biometrics.sensors.face.aidl.FaceProvider;
-import com.android.server.biometrics.sensors.face.hidl.Face10;
-
-import com.google.android.collect.Lists;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -664,60 +661,11 @@
             provider.second.scheduleGetFeature(provider.first, token, userId, feature,
                     new ClientMonitorCallbackConverter(receiver), opPackageName);
         }
-        @NonNull
-        private List<ServiceProvider> getHidlProviders(
-                @NonNull List<FaceSensorPropertiesInternal> hidlSensors) {
-            final List<ServiceProvider> providers = new ArrayList<>();
-
-            for (FaceSensorPropertiesInternal hidlSensor : hidlSensors) {
-                providers.add(
-                        Face10.newInstance(getContext(), mBiometricStateCallback,
-                                mAuthenticationStateListeners, hidlSensor,
-                                mLockoutResetDispatcher));
-            }
-
-            return providers;
-        }
-
-        @NonNull
-        private List<ServiceProvider> getAidlProviders(@NonNull List<String> instances) {
-            final List<ServiceProvider> providers = new ArrayList<>();
-
-            for (String instance : instances) {
-                final FaceProvider provider = mFaceProvider.apply(instance);
-                Slog.i(TAG, "Adding AIDL provider: " + instance);
-                providers.add(provider);
-            }
-
-            return providers;
-        }
 
         @android.annotation.EnforcePermission(android.Manifest.permission.USE_BIOMETRIC_INTERNAL)
         public void registerAuthenticators(
-                @NonNull List<FaceSensorPropertiesInternal> hidlSensors) {
-            super.registerAuthenticators_enforcePermission();
-
-            mRegistry.registerAll(() -> {
-                List<String> aidlSensors = new ArrayList<>();
-                final String[] instances = mAidlInstanceNameSupplier.get();
-                if (instances != null) {
-                    aidlSensors.addAll(Lists.newArrayList(instances));
-                }
-
-                final Pair<List<FaceSensorPropertiesInternal>, List<String>>
-                        filteredInstances = filterAvailableHalInstances(hidlSensors, aidlSensors);
-
-                final List<ServiceProvider> providers = new ArrayList<>();
-                providers.addAll(getHidlProviders(filteredInstances.first));
-                providers.addAll(getAidlProviders(filteredInstances.second));
-                return providers;
-            });
-        }
-
-        @android.annotation.EnforcePermission(android.Manifest.permission.USE_BIOMETRIC_INTERNAL)
-        public void registerAuthenticatorsLegacy(
                 FaceSensorConfigurations faceSensorConfigurations) {
-            super.registerAuthenticatorsLegacy_enforcePermission();
+            super.registerAuthenticators_enforcePermission();
 
             if (!faceSensorConfigurations.hasSensorConfigurations()) {
                 Slog.d(TAG, "No face sensors to register.");
@@ -771,40 +719,6 @@
                     .getSensorPropForInstance(finalSensorInstance));
         }
 
-        private Pair<List<FaceSensorPropertiesInternal>, List<String>>
-                filterAvailableHalInstances(
-                @NonNull List<FaceSensorPropertiesInternal> hidlInstances,
-                @NonNull List<String> aidlInstances) {
-            if ((hidlInstances.size() + aidlInstances.size()) <= 1) {
-                return new Pair(hidlInstances, aidlInstances);
-            }
-
-            if (Flags.faceVhalFeature()) {
-                Slog.i(TAG, "Face VHAL feature is on");
-            } else {
-                Slog.i(TAG, "Face VHAL feature is off");
-            }
-
-            final int virtualAt = aidlInstances.indexOf("virtual");
-            if (Flags.faceVhalFeature() && Utils.isFaceVirtualEnabled(getContext())) {
-                if (virtualAt != -1) {
-                    //only virtual instance should be returned
-                    Slog.i(TAG, "virtual hal is used");
-                    return new Pair(new ArrayList<>(), List.of(aidlInstances.get(virtualAt)));
-                } else {
-                    Slog.e(TAG, "Could not find virtual interface while it is enabled");
-                    return new Pair(hidlInstances, aidlInstances);
-                }
-            } else {
-                //remove virtual instance
-                aidlInstances = new ArrayList<>(aidlInstances);
-                if (virtualAt != -1) {
-                    aidlInstances.remove(virtualAt);
-                }
-                return new Pair(hidlInstances, aidlInstances);
-            }
-        }
-
         @Override
         public void addAuthenticatorsRegisteredCallback(
                 IFaceAuthenticatorsRegisteredCallback callback) {
@@ -883,17 +797,13 @@
             return null;
         };
 
-        if (Flags.deHidl()) {
-            mFaceProviderFunction = faceProviderFunction != null ? faceProviderFunction :
-                    ((filteredSensorProps, resetLockoutRequiresChallenge) -> new FaceProvider(
-                            getContext(), mBiometricStateCallback, mAuthenticationStateListeners,
-                            filteredSensorProps.second,
-                            filteredSensorProps.first, mLockoutResetDispatcher,
-                            BiometricContext.getInstance(getContext()),
-                            resetLockoutRequiresChallenge));
-        } else {
-            mFaceProviderFunction = ((filteredSensorProps, resetLockoutRequiresChallenge) -> null);
-        }
+        mFaceProviderFunction = faceProviderFunction != null ? faceProviderFunction :
+                ((filteredSensorProps, resetLockoutRequiresChallenge) -> new FaceProvider(
+                        getContext(), mBiometricStateCallback, mAuthenticationStateListeners,
+                        filteredSensorProps.second,
+                        filteredSensorProps.first, mLockoutResetDispatcher,
+                        BiometricContext.getInstance(getContext()),
+                        resetLockoutRequiresChallenge));
     }
 
     @Override
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/AidlResponseHandler.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/AidlResponseHandler.java
index 098be21..cf677d5 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/AidlResponseHandler.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/AidlResponseHandler.java
@@ -27,7 +27,6 @@
 import android.hardware.keymaster.HardwareAuthToken;
 import android.util.Slog;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.HardwareAuthTokenUtils;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.sensors.AcquisitionClient;
@@ -53,16 +52,6 @@
     /**
      * Interface to send results to the AidlResponseHandler's owner.
      */
-    public interface HardwareUnavailableCallback {
-        /**
-         * Invoked when the HAL sends ERROR_HW_UNAVAILABLE.
-         */
-        void onHardwareUnavailable();
-    }
-
-    /**
-     * Interface to send results to the AidlResponseHandler's owner.
-     */
     public interface AidlResponseHandlerCallback {
         /**
          * Invoked when enrollment is successful.
@@ -90,8 +79,6 @@
     @NonNull
     private final AuthSessionCoordinator mAuthSessionCoordinator;
     @NonNull
-    private final HardwareUnavailableCallback mHardwareUnavailableCallback;
-    @NonNull
     private final AidlResponseHandlerCallback mAidlResponseHandlerCallback;
 
     public AidlResponseHandler(@NonNull Context context,
@@ -99,24 +86,6 @@
             @NonNull LockoutTracker lockoutTracker,
             @NonNull LockoutResetDispatcher lockoutResetDispatcher,
             @NonNull AuthSessionCoordinator authSessionCoordinator,
-            @NonNull HardwareUnavailableCallback hardwareUnavailableCallback) {
-        this(context, scheduler, sensorId, userId, lockoutTracker, lockoutResetDispatcher,
-                authSessionCoordinator, hardwareUnavailableCallback,
-                new AidlResponseHandlerCallback() {
-                    @Override
-                    public void onEnrollSuccess() {}
-
-                    @Override
-                    public void onHardwareUnavailable() {}
-                });
-    }
-
-    public AidlResponseHandler(@NonNull Context context,
-            @NonNull BiometricScheduler scheduler, int sensorId, int userId,
-            @NonNull LockoutTracker lockoutTracker,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull AuthSessionCoordinator authSessionCoordinator,
-            @NonNull HardwareUnavailableCallback hardwareUnavailableCallback,
             @NonNull AidlResponseHandlerCallback aidlResponseHandlerCallback) {
         mContext = context;
         mScheduler = scheduler;
@@ -125,7 +94,6 @@
         mLockoutTracker = lockoutTracker;
         mLockoutResetDispatcher = lockoutResetDispatcher;
         mAuthSessionCoordinator = authSessionCoordinator;
-        mHardwareUnavailableCallback = hardwareUnavailableCallback;
         mAidlResponseHandlerCallback = aidlResponseHandlerCallback;
     }
 
@@ -185,11 +153,7 @@
         handleResponse(ErrorConsumer.class, (c) -> {
             c.onError(error, vendorCode);
             if (error == Error.HW_UNAVAILABLE) {
-                if (Flags.deHidl()) {
-                    mAidlResponseHandlerCallback.onHardwareUnavailable();
-                } else {
-                    mHardwareUnavailableCallback.onHardwareUnavailable();
-                }
+                mAidlResponseHandlerCallback.onHardwareUnavailable();
             }
         });
     }
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClient.java
index 415d294..c43c7d9 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClient.java
@@ -20,7 +20,6 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.app.NotificationManager;
 import android.content.Context;
 import android.content.res.Resources;
 import android.hardware.SensorPrivacyManager;
@@ -39,7 +38,6 @@
 
 import com.android.internal.R;
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
@@ -70,8 +68,6 @@
     private final UsageStats mUsageStats;
     @NonNull
     private final AuthSessionCoordinator mAuthSessionCoordinator;
-    @Nullable
-    private final NotificationManager mNotificationManager;
     private final int[] mBiometricPromptIgnoreList;
     private final int[] mBiometricPromptIgnoreListVendor;
     private final int[] mKeyguardIgnoreList;
@@ -123,7 +119,6 @@
                 biometricStrength);
         setRequestId(requestId);
         mUsageStats = usageStats;
-        mNotificationManager = context.getSystemService(NotificationManager.class);
         mSensorPrivacyManager = sensorPrivacyManager;
         mAuthSessionCoordinator = biometricContext.getAuthSessionCoordinator();
         mAuthenticationStateListeners = authenticationStateListeners;
@@ -163,11 +158,7 @@
                         0 /* vendorCode */);
                 mCallback.onClientFinished(this, false /* success */);
             } else {
-                if (Flags.deHidl()) {
-                    startAuthenticate();
-                } else {
-                    mCancellationSignal = doAuthenticate();
-                }
+                doAuthenticate();
             }
         } catch (RemoteException e) {
             Slog.e(TAG, "Remote exception when requesting auth", e);
@@ -176,27 +167,7 @@
         }
     }
 
-    private ICancellationSignal doAuthenticate() throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-
-        if (session.hasContextMethods()) {
-            final OperationContextExt opContext = getOperationContext();
-            final ICancellationSignal cancel = session.getSession().authenticateWithContext(
-                    mOperationId, opContext.toAidlContext(getOptions()));
-            getBiometricContext().subscribe(opContext, ctx -> {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            });
-            return cancel;
-        } else {
-            return session.getSession().authenticate(mOperationId);
-        }
-    }
-
-    private void startAuthenticate() throws RemoteException {
+    private void doAuthenticate() throws RemoteException {
         final AidlSession session = getFreshDaemon();
 
         if (session.hasContextMethods()) {
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceDetectClient.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceDetectClient.java
index 5ddddda..dcd94896 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceDetectClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceDetectClient.java
@@ -29,7 +29,6 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -112,38 +111,14 @@
         }
 
         try {
-            if (Flags.deHidl()) {
-                startDetect();
-            } else {
-                mCancellationSignal = doDetectInteraction();
-            }
+            doDetectInteraction();
         } catch (RemoteException e) {
             Slog.e(TAG, "Remote exception when requesting face detect", e);
             mCallback.onClientFinished(this, false /* success */);
         }
     }
 
-    private ICancellationSignal doDetectInteraction() throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-
-        if (session.hasContextMethods()) {
-            final OperationContextExt opContext = getOperationContext();
-            final ICancellationSignal cancel = session.getSession().detectInteractionWithContext(
-                    opContext.toAidlContext(mOptions));
-            getBiometricContext().subscribe(opContext, ctx -> {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            });
-            return cancel;
-        } else {
-            return session.getSession().detectInteraction();
-        }
-    }
-
-    private void startDetect() throws RemoteException {
+    private void doDetectInteraction() throws RemoteException {
         final AidlSession session = getFreshDaemon();
 
         if (session.hasContextMethods()) {
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClient.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClient.java
index 781e3f4..73e8ece 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClient.java
@@ -36,7 +36,6 @@
 import android.view.Surface;
 
 import com.android.internal.R;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.HardwareAuthTokenUtils;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
@@ -193,11 +192,7 @@
                 features[i] = featureList.get(i);
             }
 
-            if (Flags.deHidl()) {
-                startEnroll(features);
-            } else {
-                mCancellationSignal = doEnroll(features);
-            }
+            doEnroll(features);
         } catch (RemoteException | IllegalArgumentException e) {
             Slog.e(TAG, "Exception when requesting enroll", e);
             onError(BiometricFaceConstants.FACE_ERROR_UNABLE_TO_PROCESS, 0 /* vendorCode */);
@@ -205,43 +200,7 @@
         }
     }
 
-    private ICancellationSignal doEnroll(byte[] features) throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-        final HardwareAuthToken hat =
-                HardwareAuthTokenUtils.toHardwareAuthToken(mHardwareAuthToken);
-
-        if (session.hasContextMethods()) {
-            final OperationContextExt opContext = getOperationContext();
-            ICancellationSignal cancel;
-            if (session.supportsFaceEnrollOptions()) {
-                FaceEnrollOptions options = new FaceEnrollOptions();
-                options.hardwareAuthToken = hat;
-                options.enrollmentType = EnrollmentType.DEFAULT;
-                options.features = features;
-                options.nativeHandlePreview = null;
-                options.context = opContext.toAidlContext();
-                options.surfacePreview = mPreviewSurface;
-                cancel = session.getSession().enrollWithOptions(options);
-            } else {
-                cancel = session.getSession().enrollWithContext(
-                        hat, EnrollmentType.DEFAULT, features, mHwPreviewHandle,
-                        opContext.toAidlContext());
-            }
-            getBiometricContext().subscribe(opContext, ctx -> {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            });
-            return cancel;
-        } else {
-            return session.getSession().enroll(hat, EnrollmentType.DEFAULT, features,
-                    mHwPreviewHandle);
-        }
-    }
-
-    private void startEnroll(byte[] features) throws RemoteException {
+    private void doEnroll(byte[] features) throws RemoteException {
         final AidlSession session = getFreshDaemon();
         final HardwareAuthToken hat =
                 HardwareAuthTokenUtils.toHardwareAuthToken(mHardwareAuthToken);
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceProvider.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceProvider.java
index 11db183..75b4fd3 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceProvider.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceProvider.java
@@ -27,11 +27,9 @@
 import android.hardware.biometrics.BiometricAuthenticator;
 import android.hardware.biometrics.BiometricFaceConstants;
 import android.hardware.biometrics.BiometricsProtoEnums;
-import android.hardware.biometrics.ComponentInfoInternal;
 import android.hardware.biometrics.IInvalidationCallback;
 import android.hardware.biometrics.ITestSession;
 import android.hardware.biometrics.ITestSessionCallback;
-import android.hardware.biometrics.common.ComponentInfo;
 import android.hardware.biometrics.face.IFace;
 import android.hardware.biometrics.face.SensorProps;
 import android.hardware.face.Face;
@@ -43,7 +41,6 @@
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
@@ -56,7 +53,6 @@
 import com.android.server.biometrics.AuthenticationStatsBroadcastReceiver;
 import com.android.server.biometrics.AuthenticationStatsCollector;
 import com.android.server.biometrics.BiometricHandlerProvider;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
@@ -193,11 +189,7 @@
         mAuthenticationStateListeners = authenticationStateListeners;
         mHalInstanceName = halInstanceName;
         mFaceSensors = new SensorList<>(ActivityManager.getService());
-        if (Flags.deHidl()) {
-            mHandler = biometricHandlerProvider.getFaceHandler();
-        } else {
-            mHandler = new Handler(Looper.getMainLooper());
-        }
+        mHandler = biometricHandlerProvider.getFaceHandler();
         mUsageStats = new UsageStats(context);
         mLockoutResetDispatcher = lockoutResetDispatcher;
         mActivityTaskManager = ActivityTaskManager.getInstance();
@@ -223,50 +215,15 @@
     }
 
     private void initSensors(boolean resetLockoutRequiresChallenge, SensorProps[] props) {
-        if (Flags.deHidl()) {
-            if (resetLockoutRequiresChallenge) {
-                Slog.d(getTag(), "Adding HIDL configs");
-                for (SensorProps prop : props) {
-                    addHidlSensors(prop, resetLockoutRequiresChallenge);
-                }
-            } else {
-                Slog.d(getTag(), "Adding AIDL configs");
-                for (SensorProps prop : props) {
-                    addAidlSensors(prop, resetLockoutRequiresChallenge);
-                }
+        if (resetLockoutRequiresChallenge) {
+            Slog.d(getTag(), "Adding HIDL configs");
+            for (SensorProps prop : props) {
+                addHidlSensors(prop, resetLockoutRequiresChallenge);
             }
         } else {
+            Slog.d(getTag(), "Adding AIDL configs");
             for (SensorProps prop : props) {
-                final int sensorId = prop.commonProps.sensorId;
-
-                final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
-                if (prop.commonProps.componentInfo != null) {
-                    for (ComponentInfo info : prop.commonProps.componentInfo) {
-                        componentInfo.add(new ComponentInfoInternal(info.componentId,
-                                info.hardwareVersion, info.firmwareVersion, info.serialNumber,
-                                info.softwareVersion));
-                    }
-                }
-
-                final FaceSensorPropertiesInternal internalProp = new FaceSensorPropertiesInternal(
-                        prop.commonProps.sensorId, prop.commonProps.sensorStrength,
-                        prop.commonProps.maxEnrollmentsPerUser, componentInfo, prop.sensorType,
-                        prop.supportsDetectInteraction, prop.halControlsPreview,
-                        false /* resetLockoutRequiresChallenge */);
-                final Sensor sensor = new Sensor(this,
-                        mContext, mHandler, internalProp,
-                        mBiometricContext);
-                sensor.init(mLockoutResetDispatcher, this);
-                final int userId = sensor.getLazySession().get() == null ? UserHandle.USER_NULL :
-                        sensor.getLazySession().get().getUserId();
-                mFaceSensors.addSensor(sensorId, sensor, userId,
-                        new SynchronousUserSwitchObserver() {
-                            @Override
-                            public void onUserSwitching(int newUserId) {
-                                scheduleInternalCleanup(sensorId, newUserId, null /* callback */);
-                            }
-                        });
-                Slog.d(getTag(), "Added: " + internalProp);
+                addAidlSensors(prop, resetLockoutRequiresChallenge);
             }
         }
     }
@@ -477,12 +434,7 @@
 
     @Override
     public int getLockoutModeForUser(int sensorId, int userId) {
-        if (Flags.deHidl()) {
-            return mFaceSensors.get(sensorId).getLockoutModeForUser(userId);
-        } else {
-            return mBiometricContext.getAuthSessionCoordinator().getLockoutStateFor(userId,
-                    Utils.getCurrentStrength(sensorId));
-        }
+        return mFaceSensors.get(sensorId).getLockoutModeForUser(userId);
     }
 
     @Override
@@ -492,11 +444,7 @@
 
     @Override
     public boolean isHardwareDetected(int sensorId) {
-        if (Flags.deHidl()) {
-            return mFaceSensors.get(sensorId).isHardwareDetected(mHalInstanceName);
-        } else {
-            return hasHalInstance();
-        }
+        return mFaceSensors.get(sensorId).isHardwareDetected(mHalInstanceName);
     }
 
     @Override
@@ -549,23 +497,7 @@
                             BiometricsProtoEnums.CLIENT_UNKNOWN,
                             mAuthenticationStatsCollector),
                     mBiometricContext, maxTemplatesPerUser, debugConsent, options);
-            if (Flags.deHidl()) {
-                scheduleForSensor(sensorId, client, mBiometricStateCallback);
-            } else {
-                scheduleForSensor(sensorId, client, new ClientMonitorCompositeCallback(
-                        mBiometricStateCallback, new ClientMonitorCallback() {
-                            @Override
-                            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                                    boolean success) {
-                                ClientMonitorCallback.super.onClientFinished(clientMonitor,
-                                        success);
-                                if (success) {
-                                    scheduleLoadAuthenticatorIdsForUser(sensorId, userId);
-                                    scheduleInvalidationRequest(sensorId, userId);
-                                }
-                            }
-                        }));
-            }
+            scheduleForSensor(sensorId, client, mBiometricStateCallback);
         });
         return id;
     }
@@ -614,12 +546,8 @@
             final int sensorId = options.getSensorId();
             final boolean isStrongBiometric = Utils.isStrongBiometric(sensorId);
             mFaceSensors.get(sensorId).scheduleFaceUpdateActiveUserClient(userId);
-            final LockoutTracker lockoutTracker;
-            if (Flags.deHidl()) {
-                lockoutTracker = mFaceSensors.get(sensorId).getLockoutTracker(true /* forAuth */);
-            } else {
-                lockoutTracker = null;
-            }
+            final LockoutTracker lockoutTracker = mFaceSensors.get(sensorId).getLockoutTracker(
+                    true /* forAuth */);
             final FaceAuthenticationClient client = new FaceAuthenticationClient(
                     mContext, mFaceSensors.get(sensorId).getLazySession(), token, requestId,
                     callback, operationId, restricted, options, cookie,
@@ -634,29 +562,18 @@
                 @Override
                 public void onClientStarted(
                          BaseClientMonitor clientMonitor) {
-                    if (Flags.deHidl()) {
-                        mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
-                                mAuthSessionCoordinator.authStartedFor(userId, sensorId,
-                                        requestId));
-                    } else {
-                        mAuthSessionCoordinator.authStartedFor(userId, sensorId, requestId);
-                    }
+                    mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
+                            mAuthSessionCoordinator.authStartedFor(userId, sensorId, requestId));
                 }
 
                 @Override
                 public void onClientFinished(
                         BaseClientMonitor clientMonitor,
                         boolean success) {
-                    if (Flags.deHidl()) {
-                        mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
-                                mAuthSessionCoordinator.authEndedFor(userId,
-                                        Utils.getCurrentStrength(sensorId), sensorId, requestId,
-                                        client.wasAuthSuccessful()));
-                    } else {
-                        mAuthSessionCoordinator.authEndedFor(userId,
-                                Utils.getCurrentStrength(sensorId),
-                                sensorId, requestId, client.wasAuthSuccessful());
-                    }
+                    mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
+                            mAuthSessionCoordinator.authEndedFor(userId,
+                                    Utils.getCurrentStrength(sensorId), sensorId, requestId,
+                                    client.wasAuthSuccessful()));
                 }
             });
         });
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/Sensor.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/Sensor.java
index 635e79a..6b99493 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/Sensor.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/Sensor.java
@@ -42,7 +42,6 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.FrameworkStatsLog;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.SensorServiceStateProto;
 import com.android.server.biometrics.SensorStateProto;
 import com.android.server.biometrics.UserStateProto;
@@ -57,7 +56,6 @@
 import com.android.server.biometrics.sensors.LockoutTracker;
 import com.android.server.biometrics.sensors.StartUserClient;
 import com.android.server.biometrics.sensors.StopUserClient;
-import com.android.server.biometrics.sensors.UserAwareBiometricScheduler;
 import com.android.server.biometrics.sensors.UserSwitchProvider;
 import com.android.server.biometrics.sensors.face.FaceUtils;
 
@@ -89,7 +87,6 @@
     @Nullable AidlSession mCurrentSession;
     @NonNull BiometricContext mBiometricContext;
 
-
     Sensor(@NonNull FaceProvider provider, @NonNull Context context,
             @NonNull Handler handler, @NonNull FaceSensorPropertiesInternal sensorProperties,
             @NonNull BiometricContext biometricContext) {
@@ -116,11 +113,7 @@
      */
     public void init(@NonNull LockoutResetDispatcher lockoutResetDispatcher,
             @NonNull FaceProvider provider) {
-        if (Flags.deHidl()) {
-            setScheduler(getBiometricSchedulerForInit(lockoutResetDispatcher, provider));
-        } else {
-            setScheduler(getUserAwareBiometricSchedulerForInit(lockoutResetDispatcher, provider));
-        }
+        setScheduler(getBiometricSchedulerForInit(lockoutResetDispatcher, provider));
         mLazySession = () -> mCurrentSession != null ? mCurrentSession : null;
         mLockoutTracker = new LockoutCache();
     }
@@ -149,8 +142,7 @@
                         final AidlResponseHandler resultController = new AidlResponseHandler(
                                 mContext, mScheduler, sensorId, newUserId,
                                 mLockoutTracker, lockoutResetDispatcher,
-                                mBiometricContext.getAuthSessionCoordinator(), () -> {
-                        },
+                                mBiometricContext.getAuthSessionCoordinator(),
                                 new AidlResponseHandler.AidlResponseHandlerCallback() {
                                     @Override
                                     public void onEnrollSuccess() {
@@ -173,40 +165,6 @@
                 });
     }
 
-    private UserAwareBiometricScheduler<IFace, ISession> getUserAwareBiometricSchedulerForInit(
-            LockoutResetDispatcher lockoutResetDispatcher,
-            FaceProvider provider) {
-        return new UserAwareBiometricScheduler<>(TAG,
-                BiometricScheduler.SENSOR_TYPE_FACE, null /* gestureAvailabilityDispatcher */,
-                () -> mCurrentSession != null ? mCurrentSession.getUserId() : UserHandle.USER_NULL,
-                new UserAwareBiometricScheduler.UserSwitchCallback() {
-                    @NonNull
-                    @Override
-                    public StopUserClient<ISession> getStopUserClient(int userId) {
-                        return new FaceStopUserClient(mContext,
-                                () -> mLazySession.get().getSession(), mToken, userId,
-                                mSensorProperties.sensorId, BiometricLogger.ofUnknown(mContext),
-                                mBiometricContext, () -> mCurrentSession = null);
-                    }
-
-                    @NonNull
-                    @Override
-                    public StartUserClient<IFace, ISession> getStartUserClient(int newUserId) {
-                        final int sensorId = mSensorProperties.sensorId;
-                        final AidlResponseHandler resultController = new AidlResponseHandler(
-                                mContext, mScheduler, sensorId, newUserId,
-                                mLockoutTracker, lockoutResetDispatcher,
-                                mBiometricContext.getAuthSessionCoordinator(), () -> {
-                                    Slog.e(TAG, "Face sensor hardware unavailable.");
-                                    mCurrentSession = null;
-                                });
-
-                        return Sensor.this.getStartUserClient(resultController, sensorId,
-                                newUserId, provider);
-                    }
-                });
-    }
-
     private FaceStartUserClient getStartUserClient(@NonNull AidlResponseHandler resultController,
             int sensorId, int newUserId, @NonNull FaceProvider provider) {
         final StartUserClient.UserStartedCallback<ISession> userStartedCallback =
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/BiometricTestSessionImpl.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/BiometricTestSessionImpl.java
deleted file mode 100644
index 0e2367a..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/BiometricTestSessionImpl.java
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.ITestSession;
-import android.hardware.biometrics.ITestSessionCallback;
-import android.hardware.face.Face;
-import android.hardware.face.FaceAuthenticationFrame;
-import android.hardware.face.FaceEnrollFrame;
-import android.hardware.face.FaceEnrollOptions;
-import android.hardware.face.IFaceServiceReceiver;
-import android.os.Binder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.face.FaceUtils;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Random;
-import java.util.Set;
-
-public class BiometricTestSessionImpl extends ITestSession.Stub {
-    private static final String TAG = "BiometricTestSessionImpl";
-
-    @NonNull private final Context mContext;
-    private final int mSensorId;
-    @NonNull private final ITestSessionCallback mCallback;
-    @NonNull private final Face10 mFace10;
-    @NonNull private final Face10.HalResultController mHalResultController;
-    @NonNull private final Set<Integer> mEnrollmentIds;
-    @NonNull private final Random mRandom;
-
-
-    private final IFaceServiceReceiver mReceiver = new IFaceServiceReceiver.Stub() {
-        @Override
-        public void onEnrollResult(Face face, int remaining) {
-
-        }
-
-        @Override
-        public void onAcquired(int acquiredInfo, int vendorCode) {
-
-        }
-
-        @Override
-        public void onAuthenticationSucceeded(Face face, int userId, boolean isStrongBiometric) {
-
-        }
-
-        @Override
-        public void onFaceDetected(int sensorId, int userId, boolean isStrongBiometric) {
-
-        }
-
-        @Override
-        public void onAuthenticationFailed() {
-
-        }
-
-        @Override
-        public void onError(int error, int vendorCode) {
-
-        }
-
-        @Override
-        public void onRemoved(Face face, int remaining) {
-
-        }
-
-        @Override
-        public void onFeatureSet(boolean success, int feature) {
-
-        }
-
-        @Override
-        public void onFeatureGet(boolean success, int[] features, boolean[] featureState) {
-
-        }
-
-        @Override
-        public void onChallengeGenerated(int sensorId, int userId, long challenge) {
-
-        }
-
-        @Override
-        public void onAuthenticationFrame(FaceAuthenticationFrame frame) {
-
-        }
-
-        @Override
-        public void onEnrollmentFrame(FaceEnrollFrame frame) {
-
-        }
-    };
-
-    BiometricTestSessionImpl(@NonNull Context context, int sensorId,
-            @NonNull ITestSessionCallback callback,
-            @NonNull Face10 face10,
-            @NonNull Face10.HalResultController halResultController) {
-        mContext = context;
-        mSensorId = sensorId;
-        mCallback = callback;
-        mFace10 = face10;
-        mHalResultController = halResultController;
-        mEnrollmentIds = new HashSet<>();
-        mRandom = new Random();
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void setTestHalEnabled(boolean enabled) {
-
-        super.setTestHalEnabled_enforcePermission();
-
-        mFace10.setTestHalEnabled(enabled);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void startEnroll(int userId) {
-
-        super.startEnroll_enforcePermission();
-
-        mFace10.scheduleEnroll(mSensorId, new Binder(), new byte[69], userId, mReceiver,
-                mContext.getOpPackageName(), new int[0] /* disabledFeatures */,
-                null /* previewSurface */, false /* debugConsent */,
-                (new FaceEnrollOptions.Builder()).build());
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void finishEnroll(int userId) {
-
-        super.finishEnroll_enforcePermission();
-
-        int nextRandomId = mRandom.nextInt();
-        while (mEnrollmentIds.contains(nextRandomId)) {
-            nextRandomId = mRandom.nextInt();
-        }
-
-        mEnrollmentIds.add(nextRandomId);
-        mHalResultController.onEnrollResult(0 /* deviceId */,
-                nextRandomId /* faceId */, userId, 0);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void acceptAuthentication(int userId) {
-
-        // Fake authentication with any of the existing fingers
-        super.acceptAuthentication_enforcePermission();
-
-        List<Face> faces = FaceUtils.getLegacyInstance(mSensorId)
-                .getBiometricsForUser(mContext, userId);
-        if (faces.isEmpty()) {
-            Slog.w(TAG, "No faces, returning");
-            return;
-        }
-        final int fid = faces.get(0).getBiometricId();
-        final ArrayList<Byte> hat = new ArrayList<>(Collections.nCopies(69, (byte) 0));
-        mHalResultController.onAuthenticated(0 /* deviceId */, fid, userId, hat);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void rejectAuthentication(int userId) {
-
-        super.rejectAuthentication_enforcePermission();
-
-        mHalResultController.onAuthenticated(0 /* deviceId */, 0 /* faceId */, userId, null);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void notifyAcquired(int userId, int acquireInfo) {
-
-        super.notifyAcquired_enforcePermission();
-
-        mHalResultController.onAcquired(0 /* deviceId */, userId, acquireInfo, 0 /* vendorCode */);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void notifyError(int userId, int errorCode) {
-
-        super.notifyError_enforcePermission();
-
-        mHalResultController.onError(0 /* deviceId */, userId, errorCode, 0 /* vendorCode */);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void cleanupInternalState(int userId) {
-
-        super.cleanupInternalState_enforcePermission();
-
-        mFace10.scheduleInternalCleanup(mSensorId, userId, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                try {
-                    mCallback.onCleanupStarted(clientMonitor.getTargetUserId());
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Remote exception", e);
-                }
-            }
-
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                try {
-                    mCallback.onCleanupFinished(clientMonitor.getTargetUserId());
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Remote exception", e);
-                }
-            }
-        });
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/Face10.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/Face10.java
deleted file mode 100644
index 306ddfa..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/Face10.java
+++ /dev/null
@@ -1,1342 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.app.ActivityManager;
-import android.app.SynchronousUserSwitchObserver;
-import android.app.UserSwitchObserver;
-import android.content.Context;
-import android.content.pm.UserInfo;
-import android.hardware.biometrics.BiometricConstants;
-import android.hardware.biometrics.BiometricFaceConstants;
-import android.hardware.biometrics.BiometricsProtoEnums;
-import android.hardware.biometrics.ITestSession;
-import android.hardware.biometrics.ITestSessionCallback;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.biometrics.face.V1_0.IBiometricsFaceClientCallback;
-import android.hardware.face.Face;
-import android.hardware.face.FaceAuthenticateOptions;
-import android.hardware.face.FaceEnrollOptions;
-import android.hardware.face.FaceSensorPropertiesInternal;
-import android.hardware.face.IFaceServiceReceiver;
-import android.os.Binder;
-import android.os.Build;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.IHwBinder;
-import android.os.Looper;
-import android.os.NativeHandle;
-import android.os.RemoteException;
-import android.os.SystemProperties;
-import android.os.UserHandle;
-import android.os.UserManager;
-import android.provider.Settings;
-import android.util.Slog;
-import android.util.proto.ProtoOutputStream;
-import android.view.Surface;
-
-import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.util.FrameworkStatsLog;
-import com.android.server.biometrics.AuthenticationStatsBroadcastReceiver;
-import com.android.server.biometrics.AuthenticationStatsCollector;
-import com.android.server.biometrics.Flags;
-import com.android.server.biometrics.SensorServiceStateProto;
-import com.android.server.biometrics.SensorStateProto;
-import com.android.server.biometrics.UserStateProto;
-import com.android.server.biometrics.Utils;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.AcquisitionClient;
-import com.android.server.biometrics.sensors.AuthSessionCoordinator;
-import com.android.server.biometrics.sensors.AuthenticationConsumer;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.BiometricScheduler;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.EnumerateConsumer;
-import com.android.server.biometrics.sensors.ErrorConsumer;
-import com.android.server.biometrics.sensors.LockoutResetDispatcher;
-import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.PerformanceTracker;
-import com.android.server.biometrics.sensors.RemovalConsumer;
-import com.android.server.biometrics.sensors.face.FaceUtils;
-import com.android.server.biometrics.sensors.face.LockoutHalImpl;
-import com.android.server.biometrics.sensors.face.ServiceProvider;
-import com.android.server.biometrics.sensors.face.UsageStats;
-import com.android.server.biometrics.sensors.face.aidl.AidlResponseHandler;
-import com.android.server.biometrics.sensors.face.aidl.AidlSession;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.FileDescriptor;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.PrintWriter;
-import java.time.Clock;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicLong;
-import java.util.function.Supplier;
-
-/**
- * Supports a single instance of the {@link android.hardware.biometrics.face.V1_0} or its extended
- * minor versions.
- */
-public class Face10 implements IHwBinder.DeathRecipient, ServiceProvider {
-
-    private static final String TAG = "Face10";
-
-    private static final int ENROLL_TIMEOUT_SEC = 75;
-    private static final int GENERATE_CHALLENGE_REUSE_INTERVAL_MILLIS = 60 * 1000;
-    private static final int GENERATE_CHALLENGE_COUNTER_TTL_MILLIS =
-            FaceGenerateChallengeClient.CHALLENGE_TIMEOUT_SEC * 1000;
-    @VisibleForTesting
-    public static Clock sSystemClock = Clock.systemUTC();
-
-    private boolean mTestHalEnabled;
-
-    @NonNull private final FaceSensorPropertiesInternal mSensorProperties;
-    @NonNull private final BiometricStateCallback mBiometricStateCallback;
-    @NonNull
-    private final AuthenticationStateListeners mAuthenticationStateListeners;
-    @NonNull private final Context mContext;
-    @NonNull private final BiometricScheduler<IBiometricsFace, AidlSession> mScheduler;
-    @NonNull private final Handler mHandler;
-    @NonNull private final Supplier<IBiometricsFace> mLazyDaemon;
-    @NonNull private final LockoutHalImpl mLockoutTracker;
-    @NonNull private final UsageStats mUsageStats;
-    @NonNull private final Map<Integer, Long> mAuthenticatorIds;
-    @Nullable private IBiometricsFace mDaemon;
-    @NonNull private final HalResultController mHalResultController;
-    @NonNull private final BiometricContext mBiometricContext;
-    @Nullable private AuthenticationStatsCollector mAuthenticationStatsCollector;
-    // for requests that do not use biometric prompt
-    @NonNull private final AtomicLong mRequestCounter = new AtomicLong(0);
-    private int mCurrentUserId = UserHandle.USER_NULL;
-    private final int mSensorId;
-    private final List<Long> mGeneratedChallengeCount = new ArrayList<>();
-    private final LockoutResetDispatcher mLockoutResetDispatcher;
-    private FaceGenerateChallengeClient mGeneratedChallengeCache = null;
-    private AidlSession mSession;
-
-    private final UserSwitchObserver mUserSwitchObserver = new SynchronousUserSwitchObserver() {
-        @Override
-        public void onUserSwitching(int newUserId) {
-            scheduleInternalCleanup(newUserId, null /* callback */);
-            scheduleGetFeature(mSensorId, new Binder(), newUserId,
-                    BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION,
-                    null, mContext.getOpPackageName());
-        }
-    };
-
-    public static class HalResultController extends IBiometricsFaceClientCallback.Stub {
-        /**
-         * Interface to sends results to the HalResultController's owner.
-         */
-        public interface Callback {
-            /**
-             * Invoked when the HAL sends ERROR_HW_UNAVAILABLE.
-             */
-            void onHardwareUnavailable();
-        }
-
-        private final int mSensorId;
-        @NonNull private final Context mContext;
-        @NonNull private final Handler mHandler;
-        @NonNull private final BiometricScheduler<IBiometricsFace, AidlSession> mScheduler;
-        @Nullable private Callback mCallback;
-        @NonNull private final LockoutHalImpl mLockoutTracker;
-        @NonNull private final LockoutResetDispatcher mLockoutResetDispatcher;
-
-
-        HalResultController(int sensorId, @NonNull Context context, @NonNull Handler handler,
-                @NonNull BiometricScheduler<IBiometricsFace, AidlSession> scheduler,
-                @NonNull LockoutHalImpl lockoutTracker,
-                @NonNull LockoutResetDispatcher lockoutResetDispatcher) {
-            mSensorId = sensorId;
-            mContext = context;
-            mHandler = handler;
-            mScheduler = scheduler;
-            mLockoutTracker = lockoutTracker;
-            mLockoutResetDispatcher = lockoutResetDispatcher;
-        }
-
-        public void setCallback(@Nullable Callback callback) {
-            mCallback = callback;
-        }
-
-        @Override
-        public void onEnrollResult(long deviceId, int faceId, int userId, int remaining) {
-            mHandler.post(() -> {
-                final CharSequence name = FaceUtils.getLegacyInstance(mSensorId)
-                        .getUniqueName(mContext, userId);
-                final Face face = new Face(name, faceId, deviceId);
-
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof FaceEnrollClient)) {
-                    Slog.e(TAG, "onEnrollResult for non-enroll client: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final FaceEnrollClient enrollClient = (FaceEnrollClient) client;
-                enrollClient.onEnrollResult(face, remaining);
-            });
-        }
-
-        @Override
-        public void onAuthenticated(long deviceId, int faceId, int userId,
-                ArrayList<Byte> token) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AuthenticationConsumer)) {
-                    Slog.e(TAG, "onAuthenticated for non-authentication consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final AuthenticationConsumer authenticationConsumer =
-                        (AuthenticationConsumer) client;
-                final boolean authenticated = faceId != 0;
-                final Face face = new Face("", faceId, deviceId);
-                authenticationConsumer.onAuthenticated(face, authenticated, token);
-            });
-        }
-
-        @Override
-        public void onAcquired(long deviceId, int userId, int acquiredInfo,
-                int vendorCode) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AcquisitionClient)) {
-                    Slog.e(TAG, "onAcquired for non-acquire client: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final AcquisitionClient<?> acquisitionClient =
-                        (AcquisitionClient<?>) client;
-                acquisitionClient.onAcquired(acquiredInfo, vendorCode);
-            });
-        }
-
-        @Override
-        public void onError(long deviceId, int userId, int error, int vendorCode) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                Slog.d(TAG, "handleError"
-                        + ", client: " + (client != null ? client.getOwnerString() : null)
-                        + ", error: " + error
-                        + ", vendorCode: " + vendorCode);
-                if (!(client instanceof ErrorConsumer)) {
-                    Slog.e(TAG, "onError for non-error consumer: " + Utils.getClientName(
-                            client));
-                    return;
-                }
-
-                final ErrorConsumer errorConsumer = (ErrorConsumer) client;
-                errorConsumer.onError(error, vendorCode);
-
-                if (error == BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE) {
-                    Slog.e(TAG, "Got ERROR_HW_UNAVAILABLE");
-                    if (mCallback != null) {
-                        mCallback.onHardwareUnavailable();
-                    }
-                }
-            });
-        }
-
-        @Override
-        public void onRemoved(long deviceId, ArrayList<Integer> removed, int userId) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof RemovalConsumer)) {
-                    Slog.e(TAG, "onRemoved for non-removal consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final RemovalConsumer removalConsumer = (RemovalConsumer) client;
-
-                if (!removed.isEmpty()) {
-                    // Convert to old fingerprint-like behavior, where remove() receives
-                    // one removal at a time. This way, remove can share some more common code.
-                    for (int i = 0; i < removed.size(); i++) {
-                        final int id = removed.get(i);
-                        final Face face = new Face("", id, deviceId);
-                        final int remaining = removed.size() - i - 1;
-                        Slog.d(TAG, "Removed, faceId: " + id + ", remaining: " + remaining);
-                        removalConsumer.onRemoved(face, remaining);
-                    }
-                } else {
-                    removalConsumer.onRemoved(null, 0 /* remaining */);
-                }
-
-                Settings.Secure.putIntForUser(mContext.getContentResolver(),
-                        Settings.Secure.FACE_UNLOCK_RE_ENROLL, 0, UserHandle.USER_CURRENT);
-            });
-        }
-
-        @Override
-        public void onEnumerate(long deviceId, ArrayList<Integer> faceIds, int userId) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof EnumerateConsumer)) {
-                    Slog.e(TAG, "onEnumerate for non-enumerate consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final EnumerateConsumer enumerateConsumer = (EnumerateConsumer) client;
-
-                if (!faceIds.isEmpty()) {
-                    // Convert to old fingerprint-like behavior, where enumerate() receives one
-                    // template at a time. This way, enumerate can share some more common code.
-                    for (int i = 0; i < faceIds.size(); i++) {
-                        final Face face = new Face("", faceIds.get(i), deviceId);
-                        enumerateConsumer.onEnumerationResult(face, faceIds.size() - i - 1);
-                    }
-                } else {
-                    // For face, the HIDL contract is to receive an empty list when there are no
-                    // templates enrolled. Send a null identifier since we don't consume them
-                    // anywhere, and send remaining == 0 so this code can be shared with Face@1.1
-                    enumerateConsumer.onEnumerationResult(null /* identifier */, 0);
-                }
-            });
-        }
-
-        @Override
-        public void onLockoutChanged(long duration) {
-            mHandler.post(() -> {
-                Slog.d(TAG, "onLockoutChanged: " + duration);
-                final @LockoutTracker.LockoutMode int lockoutMode;
-                if (duration == 0) {
-                    lockoutMode = LockoutTracker.LOCKOUT_NONE;
-                } else if (duration == -1 || duration == Long.MAX_VALUE) {
-                    lockoutMode = LockoutTracker.LOCKOUT_PERMANENT;
-                } else {
-                    lockoutMode = LockoutTracker.LOCKOUT_TIMED;
-                }
-
-                mLockoutTracker.setCurrentUserLockoutMode(lockoutMode);
-
-                if (duration == 0) {
-                    mLockoutResetDispatcher.notifyLockoutResetCallbacks(mSensorId);
-                }
-            });
-        }
-    }
-
-    @VisibleForTesting
-    Face10(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FaceSensorPropertiesInternal sensorProps,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull Handler handler,
-            @NonNull BiometricScheduler<IBiometricsFace, AidlSession> scheduler,
-            @NonNull BiometricContext biometricContext) {
-        mSensorProperties = sensorProps;
-        mContext = context;
-        mBiometricStateCallback = biometricStateCallback;
-        mAuthenticationStateListeners = authenticationStateListeners;
-        mSensorId = sensorProps.sensorId;
-        mScheduler = scheduler;
-        mHandler = handler;
-        mBiometricContext = biometricContext;
-        mUsageStats = new UsageStats(context);
-        mAuthenticatorIds = new HashMap<>();
-        mLazyDaemon = Face10.this::getDaemon;
-        mLockoutTracker = new LockoutHalImpl();
-        mHalResultController = new HalResultController(sensorProps.sensorId, context, mHandler,
-                mScheduler, mLockoutTracker, lockoutResetDispatcher);
-        mLockoutResetDispatcher = lockoutResetDispatcher;
-        mHalResultController.setCallback(() -> {
-            mDaemon = null;
-            mCurrentUserId = UserHandle.USER_NULL;
-        });
-
-        AuthenticationStatsBroadcastReceiver mBroadcastReceiver =
-                new AuthenticationStatsBroadcastReceiver(
-                        mContext,
-                        BiometricsProtoEnums.MODALITY_FACE,
-                        (AuthenticationStatsCollector collector) -> {
-                            Slog.d(TAG, "Initializing AuthenticationStatsCollector");
-                            mAuthenticationStatsCollector = collector;
-                        });
-
-        try {
-            ActivityManager.getService().registerUserSwitchObserver(mUserSwitchObserver, TAG);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to register user switch observer");
-        }
-    }
-
-    public static Face10 newInstance(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FaceSensorPropertiesInternal sensorProps,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher) {
-        final Handler handler = new Handler(Looper.getMainLooper());
-        return new Face10(context, biometricStateCallback, authenticationStateListeners,
-                sensorProps, lockoutResetDispatcher, handler, new BiometricScheduler<>(
-                        BiometricScheduler.SENSOR_TYPE_FACE,
-                        null /* gestureAvailabilityTracker */),
-                BiometricContext.getInstance(context));
-    }
-
-    @Override
-    public void serviceDied(long cookie) {
-        Slog.e(TAG, "HAL died");
-        mHandler.post(() -> {
-            PerformanceTracker.getInstanceForSensorId(mSensorId)
-                    .incrementHALDeathCount();
-            mDaemon = null;
-            mCurrentUserId = UserHandle.USER_NULL;
-
-            final BaseClientMonitor client = mScheduler.getCurrentClient();
-            if (client instanceof ErrorConsumer) {
-                Slog.e(TAG, "Sending ERROR_HW_UNAVAILABLE for client: " + client);
-                final ErrorConsumer errorConsumer = (ErrorConsumer) client;
-                errorConsumer.onError(BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE,
-                        0 /* vendorCode */);
-
-                FrameworkStatsLog.write(FrameworkStatsLog.BIOMETRIC_SYSTEM_HEALTH_ISSUE_DETECTED,
-                        BiometricsProtoEnums.MODALITY_FACE,
-                        BiometricsProtoEnums.ISSUE_HAL_DEATH,
-                        -1 /* sensorId */);
-            }
-
-            mScheduler.recordCrashState();
-            mScheduler.reset();
-        });
-    }
-
-    public int getCurrentUserId() {
-        return mCurrentUserId;
-    }
-
-    synchronized AidlSession getSession() {
-        if (mDaemon != null && mSession != null) {
-            return mSession;
-        } else {
-            return mSession = new AidlSession(mContext, this::getDaemon, mCurrentUserId,
-                    new AidlResponseHandler(mContext, mScheduler, mSensorId,
-                            mCurrentUserId, mLockoutTracker, mLockoutResetDispatcher,
-                            new AuthSessionCoordinator(), () -> {
-                        mDaemon = null;
-                        mCurrentUserId = UserHandle.USER_NULL;
-                    }));
-        }
-    }
-
-    private synchronized IBiometricsFace getDaemon() {
-        if (mTestHalEnabled) {
-            final TestHal testHal = new TestHal(mContext, mSensorId);
-            testHal.setCallback(mHalResultController);
-            return testHal;
-        }
-
-        if (mDaemon != null) {
-            return mDaemon;
-        }
-
-        Slog.d(TAG, "Daemon was null, reconnecting, current operation: "
-                + mScheduler.getCurrentClient());
-
-        try {
-            mDaemon = IBiometricsFace.getService();
-        } catch (java.util.NoSuchElementException e) {
-            // Service doesn't exist or cannot be opened.
-            Slog.w(TAG, "NoSuchElementException", e);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to get face HAL", e);
-        }
-
-        if (mDaemon == null) {
-            Slog.w(TAG, "Face HAL not available");
-            return null;
-        }
-
-        mDaemon.asBinder().linkToDeath(this, 0 /* flags */);
-
-        // HAL ID for these HIDL versions are only used to determine if callbacks have been
-        // successfully set.
-        long halId = 0;
-        try {
-            halId = mDaemon.setCallback(mHalResultController).value;
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to set callback for face HAL", e);
-            mDaemon = null;
-        }
-
-        Slog.d(TAG, "Face HAL ready, HAL ID: " + halId);
-        if (halId != 0) {
-            scheduleLoadAuthenticatorIds();
-            scheduleInternalCleanup(ActivityManager.getCurrentUser(), null /* callback */);
-            scheduleGetFeature(mSensorId, new Binder(),
-                    ActivityManager.getCurrentUser(),
-                    BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION, null,
-                    mContext.getOpPackageName());
-        } else {
-            Slog.e(TAG, "Unable to set callback");
-            mDaemon = null;
-        }
-
-        return mDaemon;
-    }
-
-    @Override
-    public boolean containsSensor(int sensorId) {
-        return mSensorId == sensorId;
-    }
-
-    @Override
-    @NonNull
-    public List<FaceSensorPropertiesInternal> getSensorProperties() {
-        final List<FaceSensorPropertiesInternal> properties = new ArrayList<>();
-        properties.add(mSensorProperties);
-        return properties;
-    }
-
-    @NonNull
-    @Override
-    public FaceSensorPropertiesInternal getSensorProperties(int sensorId) {
-        return mSensorProperties;
-    }
-
-    @Override
-    @NonNull
-    public List<Face> getEnrolledFaces(int sensorId, int userId) {
-        return FaceUtils.getLegacyInstance(mSensorId).getBiometricsForUser(mContext, userId);
-    }
-
-    @Override
-    public boolean hasEnrollments(int sensorId, int userId) {
-        return !getEnrolledFaces(sensorId, userId).isEmpty();
-    }
-
-    @Override
-    @LockoutTracker.LockoutMode
-    public int getLockoutModeForUser(int sensorId, int userId) {
-        return mLockoutTracker.getLockoutModeForUser(userId);
-    }
-
-    @Override
-    public long getAuthenticatorId(int sensorId, int userId) {
-        return mAuthenticatorIds.getOrDefault(userId, 0L);
-    }
-
-    @Override
-    public boolean isHardwareDetected(int sensorId) {
-        return getDaemon() != null;
-    }
-
-    private boolean isGeneratedChallengeCacheValid() {
-        return mGeneratedChallengeCache != null
-                && sSystemClock.millis() - mGeneratedChallengeCache.getCreatedAt()
-                < GENERATE_CHALLENGE_REUSE_INTERVAL_MILLIS;
-    }
-
-    private void incrementChallengeCount() {
-        mGeneratedChallengeCount.add(0, sSystemClock.millis());
-    }
-
-    private int decrementChallengeCount() {
-        final long now = sSystemClock.millis();
-        // ignore values that are old in case generate/revoke calls are not matched
-        // this doesn't ensure revoke if calls are mismatched but it keeps the list from growing
-        mGeneratedChallengeCount.removeIf(x -> now - x > GENERATE_CHALLENGE_COUNTER_TTL_MILLIS);
-        if (!mGeneratedChallengeCount.isEmpty()) {
-            mGeneratedChallengeCount.remove(0);
-        }
-        return mGeneratedChallengeCount.size();
-    }
-
-    /**
-     * {@link IBiometricsFace} only supports a single in-flight challenge but there are cases where
-     * two callers both need challenges (e.g. resetLockout right before enrollment).
-     */
-    @Override
-    public void scheduleGenerateChallenge(int sensorId, int userId, @NonNull IBinder token,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleGenerateChallengeAidl(userId, token, receiver, opPackageName);
-            } else {
-                scheduleGenerateChallengeHidl(userId, token, receiver, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleGenerateChallengeAidl(int userId, @NonNull IBinder token,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceGenerateChallengeClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceGenerateChallengeClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), userId, opPackageName,
-                        mSensorId, createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                        mBiometricContext);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                if (client != clientMonitor) {
-                    Slog.e(TAG,
-                            "scheduleGenerateChallenge onClientStarted, mismatched client."
-                                    + " Expecting: " + client + ", received: "
-                                    + clientMonitor);
-                }
-            }
-        });
-    }
-
-    private void scheduleGenerateChallengeHidl(int userId, @NonNull IBinder token,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        incrementChallengeCount();
-        if (isGeneratedChallengeCacheValid()) {
-            Slog.d(TAG, "Current challenge is cached and will be reused");
-            mGeneratedChallengeCache.reuseResult(receiver);
-            return;
-        }
-
-        final FaceGenerateChallengeClient client = new FaceGenerateChallengeClient(mContext,
-                mLazyDaemon, token, new ClientMonitorCallbackConverter(receiver), userId,
-                opPackageName, mSensorId, createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, sSystemClock.millis());
-        mGeneratedChallengeCache = client;
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                if (client != clientMonitor) {
-                    Slog.e(TAG,
-                            "scheduleGenerateChallenge onClientStarted, mismatched client."
-                                    + " Expecting: " + client + ", received: "
-                                    + clientMonitor);
-                }
-            }
-        });
-    }
-
-    @Override
-    public void scheduleRevokeChallenge(int sensorId, int userId, @NonNull IBinder token,
-            @NonNull String opPackageName, long challenge) {
-        mHandler.post(() -> {
-            if (Flags.deHidl()) {
-                scheduleRevokeChallengeAidl(userId, token, opPackageName);
-            } else {
-                scheduleRevokeChallengeHidl(userId, token, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleRevokeChallengeAidl(int userId, @NonNull IBinder token,
-            @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceRevokeChallengeClient
-                client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceRevokeChallengeClient(
-                        mContext, this::getSession, token, userId, opPackageName, mSensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector), mBiometricContext, 0L);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                if (client != clientMonitor) {
-                    Slog.e(TAG,
-                            "scheduleRevokeChallenge, mismatched client." + "Expecting: "
-                                    + client + ", received: " + clientMonitor);
-                }
-            }
-        });
-    }
-
-    private void scheduleRevokeChallengeHidl(int userId, @NonNull IBinder token,
-            @NonNull String opPackageName) {
-        final boolean shouldRevoke = decrementChallengeCount() == 0;
-        if (!shouldRevoke) {
-            Slog.w(TAG, "scheduleRevokeChallenge skipped - challenge still in use: "
-                    + mGeneratedChallengeCount);
-            return;
-        }
-
-        Slog.d(TAG, "scheduleRevokeChallenge executing - no active clients");
-        mGeneratedChallengeCache = null;
-        final FaceRevokeChallengeClient client = new FaceRevokeChallengeClient(mContext,
-                mLazyDaemon, token, userId, opPackageName, mSensorId,
-                createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                if (client != clientMonitor) {
-                    Slog.e(TAG,
-                            "scheduleRevokeChallenge, mismatched client." + "Expecting: "
-                                    + client + ", received: " + clientMonitor);
-                }
-            }
-        });
-    }
-
-    @Override
-    public long scheduleEnroll(int sensorId, @NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId, @NonNull IFaceServiceReceiver receiver,
-            @NonNull String opPackageName, @NonNull int[] disabledFeatures,
-            @Nullable Surface previewSurface, boolean debugConsent,
-            @NonNull FaceEnrollOptions options) {
-        final long id = mRequestCounter.incrementAndGet();
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-            if (Flags.deHidl()) {
-                scheduleEnrollAidl(token, hardwareAuthToken, userId, receiver,
-                        opPackageName, disabledFeatures, previewSurface, id, options);
-            } else {
-                scheduleEnrollHidl(token, hardwareAuthToken, userId, receiver,
-                        opPackageName, disabledFeatures, previewSurface, id, options);
-            }
-        });
-        return id;
-    }
-
-    private void scheduleEnrollAidl(@NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId, @NonNull IFaceServiceReceiver receiver,
-            @NonNull String opPackageName, @NonNull int[] disabledFeatures,
-            @Nullable Surface previewSurface, long id,
-            @NonNull FaceEnrollOptions options) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceEnrollClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceEnrollClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), userId,
-                        hardwareAuthToken, opPackageName, id,
-                        FaceUtils.getLegacyInstance(mSensorId), disabledFeatures,
-                        ENROLL_TIMEOUT_SEC, previewSurface, mSensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_ENROLL,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector), mBiometricContext,
-                        mContext.getResources().getInteger(
-                                com.android.internal.R.integer.config_faceMaxTemplatesPerUser),
-                        false, options);
-
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                mBiometricStateCallback.onClientStarted(clientMonitor);
-            }
-
-            @Override
-            public void onBiometricAction(int action) {
-                mBiometricStateCallback.onBiometricAction(action);
-            }
-
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                mBiometricStateCallback.onClientFinished(clientMonitor, success);
-                if (success) {
-                    // Update authenticatorIds
-                    scheduleUpdateActiveUserWithoutHandler(client.getTargetUserId());
-                }
-            }
-        });
-    }
-
-    private void scheduleEnrollHidl(@NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId, @NonNull IFaceServiceReceiver receiver,
-            @NonNull String opPackageName, @NonNull int[] disabledFeatures,
-            @Nullable Surface previewSurface, long id, FaceEnrollOptions options) {
-            final FaceEnrollClient client = new FaceEnrollClient(mContext, mLazyDaemon, token,
-                    new ClientMonitorCallbackConverter(receiver), userId, hardwareAuthToken,
-                    opPackageName, id, FaceUtils.getLegacyInstance(mSensorId), disabledFeatures,
-                    ENROLL_TIMEOUT_SEC, previewSurface, mSensorId,
-                    createLogger(BiometricsProtoEnums.ACTION_ENROLL,
-                            BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                    mBiometricContext, options);
-            mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-                @Override
-                public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                    mBiometricStateCallback.onClientStarted(clientMonitor);
-                }
-
-                @Override
-                public void onBiometricAction(int action) {
-                    mBiometricStateCallback.onBiometricAction(action);
-                }
-
-                @Override
-                public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                        boolean success) {
-                    mBiometricStateCallback.onClientFinished(clientMonitor, success);
-                    if (success) {
-                        // Update authenticatorIds
-                        scheduleUpdateActiveUserWithoutHandler(client.getTargetUserId());
-                    }
-                }
-            });
-    }
-
-    @Override
-    public void cancelEnrollment(int sensorId, @NonNull IBinder token, long requestId) {
-        mHandler.post(() -> mScheduler.cancelEnrollment(token, requestId));
-    }
-
-    @Override
-    public long scheduleFaceDetect(@NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter callback,
-            @NonNull FaceAuthenticateOptions options, int statsClient) {
-        throw new IllegalStateException("Face detect not supported by IBiometricsFace@1.0. Did you"
-                + "forget to check the supportsFaceDetection flag?");
-    }
-
-    @Override
-    public void cancelFaceDetect(int sensorId, @NonNull IBinder token, long requestId) {
-        throw new IllegalStateException("Face detect not supported by IBiometricsFace@1.0. Did you"
-                + "forget to check the supportsFaceDetection flag?");
-    }
-
-    @Override
-    public void scheduleAuthenticate(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter receiver,
-            @NonNull FaceAuthenticateOptions options, long requestId, boolean restricted,
-            int statsClient, boolean allowBackgroundAuthentication) {
-        mHandler.post(() -> {
-            final int userId = options.getUserId();
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            final boolean isStrongBiometric = Utils.isStrongBiometric(mSensorId);
-            if (Flags.deHidl()) {
-                scheduleAuthenticateAidl(token, operationId, cookie, receiver, options, requestId,
-                        restricted, statsClient, allowBackgroundAuthentication, isStrongBiometric);
-            } else {
-                scheduleAuthenticateHidl(token, operationId, cookie, receiver, options, requestId,
-                        restricted, statsClient, allowBackgroundAuthentication, isStrongBiometric);
-            }
-        });
-    }
-
-    private void scheduleAuthenticateAidl(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter receiver,
-            @NonNull FaceAuthenticateOptions options, long requestId, boolean restricted,
-            int statsClient, boolean allowBackgroundAuthentication, boolean isStrongBiometric) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceAuthenticationClient
-                client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceAuthenticationClient(
-                        mContext, this::getSession, token, requestId, receiver, operationId,
-                        restricted, options, cookie, false /* requireConfirmation */,
-                        createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                                mAuthenticationStatsCollector), mBiometricContext,
-                        isStrongBiometric, mUsageStats, mLockoutTracker,
-                        allowBackgroundAuthentication, Utils.getCurrentStrength(mSensorId),
-                        mAuthenticationStateListeners);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleAuthenticateHidl(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter receiver,
-            @NonNull FaceAuthenticateOptions options, long requestId, boolean restricted,
-            int statsClient, boolean allowBackgroundAuthentication, boolean isStrongBiometric) {
-        final FaceAuthenticationClient client = new FaceAuthenticationClient(mContext,
-                mLazyDaemon, token, requestId, receiver, operationId, restricted, options,
-                cookie, false /* requireConfirmation */,
-                createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                        mAuthenticationStatsCollector), mBiometricContext,
-                isStrongBiometric, mLockoutTracker, mUsageStats,
-                allowBackgroundAuthentication, Utils.getCurrentStrength(mSensorId),
-                mAuthenticationStateListeners);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    @Override
-    public long scheduleAuthenticate(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter receiver,
-            @NonNull FaceAuthenticateOptions options, boolean restricted, int statsClient,
-            boolean allowBackgroundAuthentication) {
-        final long id = mRequestCounter.incrementAndGet();
-
-        scheduleAuthenticate(token, operationId, cookie, receiver,
-                options, id, restricted, statsClient, allowBackgroundAuthentication);
-
-        return id;
-    }
-
-    @Override
-    public void cancelAuthentication(int sensorId, @NonNull IBinder token, long requestId) {
-        mHandler.post(() -> mScheduler.cancelAuthenticationOrDetection(token, requestId));
-    }
-
-    @Override
-    public void scheduleRemove(int sensorId, @NonNull IBinder token, int faceId, int userId,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleRemoveAidl(token, userId, receiver, opPackageName, faceId);
-            } else {
-                scheduleRemoveHidl(token, userId, receiver, opPackageName, faceId);
-            }
-        });
-    }
-
-    @Override
-    public void scheduleRemoveAll(int sensorId, @NonNull IBinder token, int userId,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            // For IBiometricsFace@1.0, remove(0) means remove all enrollments
-            if (Flags.deHidl()) {
-                scheduleRemoveAidl(token, userId, receiver, opPackageName, 0);
-            } else {
-                scheduleRemoveHidl(token, userId, receiver, opPackageName, 0);
-            }
-        });
-    }
-
-    private void scheduleRemoveAidl(@NonNull IBinder token, int userId,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName, int faceId) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceRemovalClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceRemovalClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), new int[]{faceId}, userId,
-                        opPackageName, FaceUtils.getLegacyInstance(mSensorId), mSensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_REMOVE,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector), mBiometricContext,
-                        mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    private void scheduleRemoveHidl(@NonNull IBinder token, int userId,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName, int faceId) {
-        final FaceRemovalClient client = new FaceRemovalClient(mContext, mLazyDaemon, token,
-                new ClientMonitorCallbackConverter(receiver), faceId, userId,
-                opPackageName, FaceUtils.getLegacyInstance(mSensorId), mSensorId,
-                createLogger(BiometricsProtoEnums.ACTION_REMOVE,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    @Override
-    public void scheduleResetLockout(int sensorId, int userId, @NonNull byte[] hardwareAuthToken) {
-        mHandler.post(() -> {
-            if (getEnrolledFaces(sensorId, userId).isEmpty()) {
-                Slog.w(TAG, "Ignoring lockout reset, no templates enrolled for user: " + userId);
-                return;
-            }
-
-            scheduleUpdateActiveUserWithoutHandler(userId);
-            if (Flags.deHidl()) {
-                scheduleResetLockoutAidl(userId, hardwareAuthToken);
-            } else {
-                scheduleResetLockoutHidl(userId, hardwareAuthToken);
-            }
-        });
-    }
-
-    private void scheduleResetLockoutAidl(int userId,
-            @NonNull byte[] hardwareAuthToken) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceResetLockoutClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceResetLockoutClient(
-                        mContext, this::getSession, userId, mContext.getOpPackageName(),
-                        mSensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, hardwareAuthToken, mLockoutTracker,
-                        mLockoutResetDispatcher, mSensorProperties.sensorStrength);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleResetLockoutHidl(int userId,
-            @NonNull byte[] hardwareAuthToken) {
-        final FaceResetLockoutClient client = new FaceResetLockoutClient(mContext,
-                mLazyDaemon,
-                userId, mContext.getOpPackageName(), mSensorId,
-                createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, hardwareAuthToken);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    @Override
-    public void scheduleSetFeature(int sensorId, @NonNull IBinder token, int userId, int feature,
-            boolean enabled, @NonNull byte[] hardwareAuthToken,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-            if (Flags.deHidl()) {
-                scheduleSetFeatureAidl(sensorId, token, userId, feature, enabled, hardwareAuthToken,
-                        receiver, opPackageName);
-            } else {
-                scheduleSetFeatureHidl(sensorId, token, userId, feature, enabled, hardwareAuthToken,
-                        receiver, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleSetFeatureHidl(int sensorId, @NonNull IBinder token, int userId,
-            int feature, boolean enabled, @NonNull byte[] hardwareAuthToken,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        final List<Face> faces = getEnrolledFaces(sensorId, userId);
-        if (faces.isEmpty()) {
-            Slog.w(TAG, "Ignoring setFeature, no templates enrolled for user: " + userId);
-            return;
-        }
-        final int faceId = faces.get(0).getBiometricId();
-        final FaceSetFeatureClient client = new FaceSetFeatureClient(mContext, mLazyDaemon,
-                token, new ClientMonitorCallbackConverter(receiver), userId, opPackageName,
-                mSensorId, BiometricLogger.ofUnknown(mContext), mBiometricContext, feature,
-                enabled, hardwareAuthToken, faceId);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleSetFeatureAidl(int sensorId, @NonNull IBinder token, int userId,
-            int feature, boolean enabled, @NonNull byte[] hardwareAuthToken,
-            @NonNull IFaceServiceReceiver receiver, @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceSetFeatureClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceSetFeatureClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), userId, opPackageName,
-                        mSensorId, BiometricLogger.ofUnknown(mContext), mBiometricContext,
-                        feature, enabled, hardwareAuthToken);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-
-    @Override
-    public void scheduleGetFeature(int sensorId, @NonNull IBinder token, int userId, int feature,
-            @Nullable ClientMonitorCallbackConverter listener, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleGetFeatureAidl(token, userId, feature, listener,
-                        opPackageName);
-            } else {
-                scheduleGetFeatureHidl(sensorId, token, userId, feature, listener,
-                        opPackageName);
-            }
-        });
-    }
-
-    private void scheduleGetFeatureHidl(int sensorId, @NonNull IBinder token, int userId,
-            int feature, @Nullable ClientMonitorCallbackConverter listener,
-            @NonNull String opPackageName) {
-        final List<Face> faces = getEnrolledFaces(sensorId, userId);
-        if (faces.isEmpty()) {
-            Slog.w(TAG, "Ignoring getFeature, no templates enrolled for user: " + userId);
-            return;
-        }
-
-        final int faceId = faces.get(0).getBiometricId();
-        final FaceGetFeatureClient client = new FaceGetFeatureClient(mContext, mLazyDaemon,
-                token, listener, userId, opPackageName, mSensorId,
-                BiometricLogger.ofUnknown(mContext), mBiometricContext, feature, faceId);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                if (success
-                        && feature == BiometricFaceConstants.FEATURE_REQUIRE_ATTENTION) {
-                    final int settingsValue = client.getValue() ? 1 : 0;
-                    Slog.d(TAG,
-                            "Updating attention value for user: " + userId + " to value: "
-                                    + settingsValue);
-                    Settings.Secure.putIntForUser(mContext.getContentResolver(),
-                            Settings.Secure.FACE_UNLOCK_ATTENTION_REQUIRED, settingsValue,
-                            userId);
-                }
-            }
-        });
-    }
-
-    private void scheduleGetFeatureAidl(@NonNull IBinder token, int userId,
-            int feature, @Nullable ClientMonitorCallbackConverter listener,
-            @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceGetFeatureClient client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceGetFeatureClient(
-                        mContext, this::getSession, token, listener, userId, opPackageName,
-                        mSensorId, BiometricLogger.ofUnknown(mContext), mBiometricContext,
-                        feature);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleInternalCleanup(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-            if (Flags.deHidl()) {
-                scheduleInternalCleanupAidl(userId, callback);
-            } else {
-                scheduleInternalCleanupHidl(userId, callback);
-            }
-        });
-    }
-
-    private void scheduleInternalCleanupHidl(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        final FaceInternalCleanupClient client = new FaceInternalCleanupClient(mContext,
-                mLazyDaemon, userId, mContext.getOpPackageName(), mSensorId,
-                createLogger(BiometricsProtoEnums.ACTION_ENUMERATE,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, FaceUtils.getLegacyInstance(mSensorId),
-                mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client,
-                new ClientMonitorCompositeCallback(callback, mBiometricStateCallback));
-    }
-
-    private void scheduleInternalCleanupAidl(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        final com.android.server.biometrics.sensors.face.aidl.FaceInternalCleanupClient
-                client =
-                new com.android.server.biometrics.sensors.face.aidl.FaceInternalCleanupClient(
-                        mContext, this::getSession, userId, mContext.getOpPackageName(),
-                        mSensorId, createLogger(BiometricsProtoEnums.ACTION_ENUMERATE,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                        mBiometricContext, FaceUtils.getLegacyInstance(mSensorId),
-                        mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client,
-                new ClientMonitorCompositeCallback(callback, mBiometricStateCallback));
-    }
-
-    @Override
-    public void scheduleInternalCleanup(int sensorId, int userId,
-            @Nullable ClientMonitorCallback callback) {
-        scheduleInternalCleanup(userId, mBiometricStateCallback);
-    }
-
-    @Override
-    public void scheduleInternalCleanup(int sensorId, int userId,
-            @Nullable ClientMonitorCallback callback, boolean favorHalEnrollments) {
-        scheduleInternalCleanup(userId, callback);
-    }
-
-    @Override
-    public void startPreparedClient(int sensorId, int cookie) {
-        mHandler.post(() -> {
-            mScheduler.startPreparedClient(cookie);
-        });
-    }
-
-    @Override
-    public void dumpProtoState(int sensorId, ProtoOutputStream proto,
-            boolean clearSchedulerBuffer) {
-        final long sensorToken = proto.start(SensorServiceStateProto.SENSOR_STATES);
-
-        proto.write(SensorStateProto.SENSOR_ID, mSensorProperties.sensorId);
-        proto.write(SensorStateProto.MODALITY, SensorStateProto.FACE);
-        proto.write(SensorStateProto.CURRENT_STRENGTH,
-                Utils.getCurrentStrength(mSensorProperties.sensorId));
-        proto.write(SensorStateProto.SCHEDULER, mScheduler.dumpProtoState(clearSchedulerBuffer));
-
-        for (UserInfo user : UserManager.get(mContext).getUsers()) {
-            final int userId = user.getUserHandle().getIdentifier();
-
-            final long userToken = proto.start(SensorStateProto.USER_STATES);
-            proto.write(UserStateProto.USER_ID, userId);
-            proto.write(UserStateProto.NUM_ENROLLED, FaceUtils.getLegacyInstance(mSensorId)
-                    .getBiometricsForUser(mContext, userId).size());
-            proto.end(userToken);
-        }
-
-        proto.write(SensorStateProto.RESET_LOCKOUT_REQUIRES_HARDWARE_AUTH_TOKEN,
-                mSensorProperties.resetLockoutRequiresHardwareAuthToken);
-        proto.write(SensorStateProto.RESET_LOCKOUT_REQUIRES_CHALLENGE,
-                mSensorProperties.resetLockoutRequiresChallenge);
-
-        proto.end(sensorToken);
-    }
-
-    @Override
-    public void dumpProtoMetrics(int sensorId, FileDescriptor fd) {
-    }
-
-    @Override
-    public void dumpInternal(int sensorId, PrintWriter pw) {
-        PerformanceTracker performanceTracker =
-                PerformanceTracker.getInstanceForSensorId(mSensorId);
-
-        JSONObject dump = new JSONObject();
-        try {
-            dump.put("service", TAG);
-
-            JSONArray sets = new JSONArray();
-            for (UserInfo user : UserManager.get(mContext).getUsers()) {
-                final int userId = user.getUserHandle().getIdentifier();
-                final int c = FaceUtils.getLegacyInstance(mSensorId)
-                        .getBiometricsForUser(mContext, userId).size();
-                JSONObject set = new JSONObject();
-                set.put("id", userId);
-                set.put("count", c);
-                set.put("accept", performanceTracker.getAcceptForUser(userId));
-                set.put("reject", performanceTracker.getRejectForUser(userId));
-                set.put("acquire", performanceTracker.getAcquireForUser(userId));
-                set.put("lockout", performanceTracker.getTimedLockoutForUser(userId));
-                set.put("permanentLockout", performanceTracker.getPermanentLockoutForUser(userId));
-                // cryptoStats measures statistics about secure face transactions
-                // (e.g. to unlock password storage, make secure purchases, etc.)
-                set.put("acceptCrypto", performanceTracker.getAcceptCryptoForUser(userId));
-                set.put("rejectCrypto", performanceTracker.getRejectCryptoForUser(userId));
-                set.put("acquireCrypto", performanceTracker.getAcquireCryptoForUser(userId));
-                sets.put(set);
-            }
-
-            dump.put("prints", sets);
-        } catch (JSONException e) {
-            Slog.e(TAG, "dump formatting failure", e);
-        }
-        pw.println(dump);
-        pw.println("HAL deaths since last reboot: " + performanceTracker.getHALDeathCount());
-
-        mScheduler.dump(pw);
-        mUsageStats.print(pw);
-    }
-
-    private void scheduleLoadAuthenticatorIds() {
-        // Note that this can be performed on the scheduler (as opposed to being done immediately
-        // when the HAL is (re)loaded, since
-        // 1) If this is truly the first time it's being performed (e.g. system has just started),
-        //    this will be run very early and way before any applications need to generate keys.
-        // 2) If this is being performed to refresh the authenticatorIds (e.g. HAL crashed and has
-        //    just been reloaded), the framework already has a cache of the authenticatorIds. This
-        //    is safe because authenticatorIds only change when A) new template has been enrolled,
-        //    or B) all templates are removed.
-        mHandler.post(() -> {
-            for (UserInfo user : UserManager.get(mContext).getAliveUsers()) {
-                final int targetUserId = user.id;
-                if (!mAuthenticatorIds.containsKey(targetUserId)) {
-                    scheduleUpdateActiveUserWithoutHandler(targetUserId);
-                }
-            }
-        });
-    }
-
-    /**
-     * Schedules the {@link FaceUpdateActiveUserClient} without posting the work onto the handler.
-     * Many/most APIs are user-specific. However, the HAL requires explicit "setActiveUser"
-     * invocation prior to authenticate/enroll/etc. Thus, internally we usually want to schedule
-     * this operation on the same lambda/runnable as those operations so that the ordering is
-     * correct.
-     */
-    private void scheduleUpdateActiveUserWithoutHandler(int targetUserId) {
-        final boolean hasEnrolled = !getEnrolledFaces(mSensorId, targetUserId).isEmpty();
-        final FaceUpdateActiveUserClient client = new FaceUpdateActiveUserClient(mContext,
-                mLazyDaemon, targetUserId, mContext.getOpPackageName(), mSensorId,
-                createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, hasEnrolled, mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                if (success) {
-                    if (mCurrentUserId != targetUserId) {
-                        // Create new session with updated user ID
-                        mSession = null;
-                    }
-                    mCurrentUserId = targetUserId;
-                } else {
-                    Slog.w(TAG, "Failed to change user, still: " + mCurrentUserId);
-                }
-            }
-        });
-    }
-
-    private BiometricLogger createLogger(int statsAction, int statsClient,
-            AuthenticationStatsCollector authenticationStatsCollector) {
-        return new BiometricLogger(mContext, BiometricsProtoEnums.MODALITY_FACE,
-                statsAction, statsClient, authenticationStatsCollector);
-    }
-
-    /**
-     * Sends a debug message to the HAL with the provided FileDescriptor and arguments.
-     */
-    public void dumpHal(int sensorId, @NonNull FileDescriptor fd, @NonNull String[] args) {
-        // WARNING: CDD restricts image data from leaving TEE unencrypted on
-        //          production devices:
-        // [C-1-10] MUST not allow unencrypted access to identifiable biometric
-        //          data or any data derived from it (such as embeddings) to the
-        //         Application Processor outside the context of the TEE.
-        //  As such, this API should only be enabled for testing purposes on
-        //  engineering and userdebug builds.  All modules in the software stack
-        //  MUST enforce final build products do NOT have this functionality.
-        //  Additionally, the following check MUST NOT be removed.
-        if (!(Build.IS_ENG || Build.IS_USERDEBUG)) {
-            return;
-        }
-
-        // Additionally, this flag allows turning off face for a device
-        // (either permanently through the build or on an individual device).
-        if (SystemProperties.getBoolean("ro.face.disable_debug_data", false)
-                || SystemProperties.getBoolean("persist.face.disable_debug_data", false)) {
-            return;
-        }
-
-        // The debug method takes two file descriptors. The first is for text
-        // output, which we will drop.  The second is for binary data, which
-        // will be the protobuf data.
-        final IBiometricsFace daemon = getDaemon();
-        if (daemon != null) {
-            FileOutputStream devnull = null;
-            try {
-                devnull = new FileOutputStream("/dev/null");
-                final NativeHandle handle = new NativeHandle(
-                        new FileDescriptor[]{devnull.getFD(), fd},
-                        new int[0], false);
-                daemon.debug(handle, new ArrayList<String>(Arrays.asList(args)));
-            } catch (IOException | RemoteException ex) {
-                Slog.d(TAG, "error while reading face debugging data", ex);
-            } finally {
-                if (devnull != null) {
-                    try {
-                        devnull.close();
-                    } catch (IOException ex) {
-                    }
-                }
-            }
-        }
-    }
-
-    void setTestHalEnabled(boolean enabled) {
-        mTestHalEnabled = enabled;
-    }
-
-    @NonNull
-    @Override
-    public ITestSession createTestSession(int sensorId, @NonNull ITestSessionCallback callback,
-            @NonNull String opPackageName) {
-        return new BiometricTestSessionImpl(mContext, mSensorId, callback,
-                this, mHalResultController);
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceAuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceAuthenticationClient.java
deleted file mode 100644
index e44b263..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceAuthenticationClient.java
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import static android.adaptiveauth.Flags.reportBiometricAuthAttempts;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.content.res.Resources;
-import android.hardware.SensorPrivacyManager;
-import android.hardware.biometrics.BiometricAuthenticator;
-import android.hardware.biometrics.BiometricConstants;
-import android.hardware.biometrics.BiometricFaceConstants;
-import android.hardware.biometrics.BiometricManager.Authenticators;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.face.FaceAuthenticateOptions;
-import android.hardware.face.FaceManager;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.internal.R;
-import com.android.server.biometrics.Utils;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.AuthenticationClient;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BiometricNotificationUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.PerformanceTracker;
-import com.android.server.biometrics.sensors.face.UsageStats;
-
-import java.util.ArrayList;
-import java.util.function.Supplier;
-
-/**
- * Face-specific authentication client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-class FaceAuthenticationClient
-        extends AuthenticationClient<IBiometricsFace, FaceAuthenticateOptions> {
-
-    private static final String TAG = "FaceAuthenticationClient";
-
-    private final UsageStats mUsageStats;
-
-    private final int[] mBiometricPromptIgnoreList;
-    private final int[] mBiometricPromptIgnoreListVendor;
-    private final int[] mKeyguardIgnoreList;
-    private final int[] mKeyguardIgnoreListVendor;
-
-    private int mLastAcquire;
-    private SensorPrivacyManager mSensorPrivacyManager;
-    @NonNull
-    private final AuthenticationStateListeners mAuthenticationStateListeners;
-
-    FaceAuthenticationClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, long requestId,
-            @NonNull ClientMonitorCallbackConverter listener, long operationId,
-            boolean restricted, @NonNull FaceAuthenticateOptions options, int cookie,
-            boolean requireConfirmation,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            boolean isStrongBiometric, @NonNull LockoutTracker lockoutTracker,
-            @NonNull UsageStats usageStats, boolean allowBackgroundAuthentication,
-            @Authenticators.Types int sensorStrength,
-            @NonNull AuthenticationStateListeners authenticationStateListeners) {
-        super(context, lazyDaemon, token, listener, operationId, restricted,
-                options, cookie, requireConfirmation, logger, biometricContext,
-                isStrongBiometric, null /* taskStackListener */,
-                lockoutTracker, allowBackgroundAuthentication, false /* shouldVibrate */,
-                sensorStrength);
-        setRequestId(requestId);
-        mUsageStats = usageStats;
-        mSensorPrivacyManager = context.getSystemService(SensorPrivacyManager.class);
-        mAuthenticationStateListeners = authenticationStateListeners;
-
-        final Resources resources = getContext().getResources();
-        mBiometricPromptIgnoreList = resources.getIntArray(
-                R.array.config_face_acquire_biometricprompt_ignorelist);
-        mBiometricPromptIgnoreListVendor = resources.getIntArray(
-                R.array.config_face_acquire_vendor_biometricprompt_ignorelist);
-        mKeyguardIgnoreList = resources.getIntArray(
-                R.array.config_face_acquire_keyguard_ignorelist);
-        mKeyguardIgnoreListVendor = resources.getIntArray(
-                R.array.config_face_acquire_vendor_keyguard_ignorelist);
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-        mState = STATE_STARTED;
-    }
-
-    @NonNull
-    @Override
-    protected ClientMonitorCallback wrapCallbackForStart(@NonNull ClientMonitorCallback callback) {
-        return new ClientMonitorCompositeCallback(
-                getLogger().getAmbientLightProbe(true /* startWithClient */), callback);
-    }
-
-    @Override
-    protected void startHalOperation() {
-
-        if (mSensorPrivacyManager != null
-                && mSensorPrivacyManager
-                .isSensorPrivacyEnabled(SensorPrivacyManager.TOGGLE_TYPE_SOFTWARE,
-                SensorPrivacyManager.Sensors.CAMERA)) {
-            onError(BiometricFaceConstants.FACE_ERROR_HW_UNAVAILABLE, 0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-            return;
-        }
-
-        try {
-            getFreshDaemon().authenticate(mOperationId);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting auth", e);
-            onError(BiometricFaceConstants.FACE_ERROR_HW_UNAVAILABLE, 0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    protected void stopHalOperation() {
-        try {
-            getFreshDaemon().cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting cancel", e);
-            onError(BiometricFaceConstants.FACE_ERROR_HW_UNAVAILABLE, 0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public boolean wasUserDetected() {
-        // Do not provide haptic feedback if the user was not detected, and an error (usually
-        // ERROR_TIMEOUT) is received.
-        return mLastAcquire != FaceManager.FACE_ACQUIRED_NOT_DETECTED
-                && mLastAcquire != FaceManager.FACE_ACQUIRED_SENSOR_DIRTY;
-    }
-
-    @Override
-    protected void handleLifecycleAfterAuth(boolean authenticated) {
-        // For face, the authentication lifecycle ends either when
-        // 1) Authenticated == true
-        // 2) Error occurred
-        // 3) Authenticated == false
-        mCallback.onClientFinished(this, true /* success */);
-    }
-
-    @Override
-    public @LockoutTracker.LockoutMode int handleFailedAttempt(int userId) {
-        @LockoutTracker.LockoutMode final int lockoutMode =
-                getLockoutTracker().getLockoutModeForUser(userId);
-        final PerformanceTracker performanceTracker =
-                PerformanceTracker.getInstanceForSensorId(getSensorId());
-        if (lockoutMode == LockoutTracker.LOCKOUT_PERMANENT) {
-            performanceTracker.incrementPermanentLockoutForUser(userId);
-        } else if (lockoutMode == LockoutTracker.LOCKOUT_TIMED) {
-            performanceTracker.incrementTimedLockoutForUser(userId);
-        }
-
-        return lockoutMode;
-    }
-
-    @Override
-    public void onAuthenticated(BiometricAuthenticator.Identifier identifier,
-            boolean authenticated, ArrayList<Byte> token) {
-        super.onAuthenticated(identifier, authenticated, token);
-
-        mState = STATE_STOPPED;
-        mUsageStats.addEvent(new UsageStats.AuthenticationEvent(
-                getStartTimeMs(),
-                System.currentTimeMillis() - getStartTimeMs() /* latency */,
-                authenticated,
-                0 /* error */,
-                0 /* vendorError */,
-                getTargetUserId()));
-
-        if (reportBiometricAuthAttempts()) {
-            if (authenticated) {
-                mAuthenticationStateListeners.onAuthenticationSucceeded(getRequestReason(),
-                        getTargetUserId());
-            } else {
-                mAuthenticationStateListeners.onAuthenticationFailed(getRequestReason(),
-                        getTargetUserId());
-            }
-        }
-    }
-
-    @Override
-    public void onError(@BiometricConstants.Errors int error, int vendorCode) {
-        mUsageStats.addEvent(new UsageStats.AuthenticationEvent(
-                getStartTimeMs(),
-                System.currentTimeMillis() - getStartTimeMs() /* latency */,
-                false /* authenticated */,
-                error,
-                vendorCode,
-                getTargetUserId()));
-
-        super.onError(error, vendorCode);
-    }
-
-    private int[] getAcquireIgnorelist() {
-        return isBiometricPrompt() ? mBiometricPromptIgnoreList : mKeyguardIgnoreList;
-    }
-
-    private int[] getAcquireVendorIgnorelist() {
-        return isBiometricPrompt() ? mBiometricPromptIgnoreListVendor : mKeyguardIgnoreListVendor;
-    }
-
-    private boolean shouldSend(int acquireInfo, int vendorCode) {
-        if (acquireInfo == FaceManager.FACE_ACQUIRED_VENDOR) {
-            return !Utils.listContains(getAcquireVendorIgnorelist(), vendorCode);
-        } else {
-            return !Utils.listContains(getAcquireIgnorelist(), acquireInfo);
-        }
-    }
-
-    @Override
-    public void onAcquired(int acquireInfo, int vendorCode) {
-        mLastAcquire = acquireInfo;
-
-        if (acquireInfo == FaceManager.FACE_ACQUIRED_RECALIBRATE) {
-            BiometricNotificationUtils.showReEnrollmentNotification(getContext());
-        }
-        @LockoutTracker.LockoutMode final int lockoutMode =
-                getLockoutTracker().getLockoutModeForUser(getTargetUserId());
-        if (lockoutMode == LockoutTracker.LOCKOUT_NONE) {
-            PerformanceTracker pt = PerformanceTracker.getInstanceForSensorId(getSensorId());
-            pt.incrementAcquireForUser(getTargetUserId(), isCryptoOperation());
-        }
-
-        final boolean shouldSend = shouldSend(acquireInfo, vendorCode);
-        onAcquiredInternal(acquireInfo, vendorCode, shouldSend);
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceEnrollClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceEnrollClient.java
deleted file mode 100644
index 815cf91..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceEnrollClient.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.content.Context;
-import android.hardware.biometrics.BiometricFaceConstants;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.biometrics.face.V1_0.Status;
-import android.hardware.face.Face;
-import android.hardware.face.FaceEnrollOptions;
-import android.hardware.face.FaceManager;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-import android.view.Surface;
-
-import com.android.internal.R;
-import com.android.server.biometrics.Utils;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricNotificationUtils;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.EnrollClient;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.function.Supplier;
-
-/**
- * Face-specific enroll client supporting the {@link android.hardware.biometrics.face.V1_0} HIDL
- * interface.
- */
-public class FaceEnrollClient extends EnrollClient<IBiometricsFace> {
-
-    private static final String TAG = "FaceEnrollClient";
-
-    @NonNull private final int[] mDisabledFeatures;
-    @NonNull private final int[] mEnrollIgnoreList;
-    @NonNull private final int[] mEnrollIgnoreListVendor;
-
-    FaceEnrollClient(@NonNull Context context, @NonNull Supplier<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, @NonNull ClientMonitorCallbackConverter listener, int userId,
-            @NonNull byte[] hardwareAuthToken, @NonNull String owner, long requestId,
-            @NonNull BiometricUtils<Face> utils, @NonNull int[] disabledFeatures, int timeoutSec,
-            @Nullable Surface previewSurface, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull FaceEnrollOptions options) {
-        super(context, lazyDaemon, token, listener, userId, hardwareAuthToken, owner, utils,
-                timeoutSec, sensorId, false /* shouldVibrate */, logger, biometricContext,
-                BiometricFaceConstants.reasonToMetric(options.getEnrollReason()));
-        setRequestId(requestId);
-        mDisabledFeatures = Arrays.copyOf(disabledFeatures, disabledFeatures.length);
-        mEnrollIgnoreList = getContext().getResources()
-                .getIntArray(R.array.config_face_acquire_enroll_ignorelist);
-        mEnrollIgnoreListVendor = getContext().getResources()
-                .getIntArray(R.array.config_face_acquire_vendor_enroll_ignorelist);
-
-        Slog.w(TAG, "EnrollOptions "
-                + FaceEnrollOptions.enrollReasonToString(options.getEnrollReason()));
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-
-        BiometricNotificationUtils.cancelFaceEnrollNotification(getContext());
-        BiometricNotificationUtils.cancelFaceReEnrollNotification(getContext());
-    }
-
-    @NonNull
-    @Override
-    protected ClientMonitorCallback wrapCallbackForStart(@NonNull ClientMonitorCallback callback) {
-        return new ClientMonitorCompositeCallback(
-                getLogger().getAmbientLightProbe(true /* startWithClient */), callback);
-    }
-
-    @Override
-    protected boolean hasReachedEnrollmentLimit() {
-        final int limit = getContext().getResources().getInteger(
-                com.android.internal.R.integer.config_faceMaxTemplatesPerUser);
-        final int enrolled = mBiometricUtils.getBiometricsForUser(getContext(), getTargetUserId())
-                .size();
-        if (enrolled >= limit) {
-            Slog.w(TAG, "Too many faces registered, user: " + getTargetUserId());
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    public void onAcquired(int acquireInfo, int vendorCode) {
-        final boolean shouldSend;
-        if (acquireInfo == FaceManager.FACE_ACQUIRED_VENDOR) {
-            shouldSend = !Utils.listContains(mEnrollIgnoreListVendor, vendorCode);
-        } else {
-            shouldSend = !Utils.listContains(mEnrollIgnoreList, acquireInfo);
-        }
-        onAcquiredInternal(acquireInfo, vendorCode, shouldSend);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        final ArrayList<Byte> token = new ArrayList<>();
-        for (byte b : mHardwareAuthToken) {
-            token.add(b);
-        }
-        final ArrayList<Integer> disabledFeatures = new ArrayList<>();
-        for (int disabledFeature : mDisabledFeatures) {
-            disabledFeatures.add(disabledFeature);
-        }
-
-        try {
-            final int status = getFreshDaemon().enroll(token, mTimeoutSec, disabledFeatures);
-
-            if (status != Status.OK) {
-                onError(BiometricFaceConstants.FACE_ERROR_UNABLE_TO_PROCESS, 0 /* vendorCode */);
-                mCallback.onClientFinished(this, false /* success */);
-            }
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting enroll", e);
-            onError(BiometricFaceConstants.FACE_ERROR_UNABLE_TO_PROCESS, 0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    protected void stopHalOperation() {
-        try {
-            getFreshDaemon().cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting cancel", e);
-            onError(BiometricFaceConstants.FACE_ERROR_HW_UNAVAILABLE, 0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClient.java
deleted file mode 100644
index 97838a7..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClient.java
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.face.IFaceServiceReceiver;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.internal.util.Preconditions;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.GenerateChallengeClient;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.function.Supplier;
-
-/**
- * Face-specific generateChallenge client supporting the
- * {@link android.hardware.biometrics.face.V1_0} HIDL interface.
- */
-public class FaceGenerateChallengeClient extends GenerateChallengeClient<IBiometricsFace> {
-
-    private static final String TAG = "FaceGenerateChallengeClient";
-    static final int CHALLENGE_TIMEOUT_SEC = 600; // 10 minutes
-    private static final ClientMonitorCallback EMPTY_CALLBACK = new ClientMonitorCallback() {
-    };
-
-    private final long mCreatedAt;
-    private List<IFaceServiceReceiver> mWaiting;
-    private Long mChallengeResult;
-
-    FaceGenerateChallengeClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon, @NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener, int userId, @NonNull String owner,
-            int sensorId, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext, long now) {
-        super(context, lazyDaemon, token, listener, userId, owner, sensorId, logger,
-                biometricContext);
-        mCreatedAt = now;
-        mWaiting = new ArrayList<>();
-    }
-
-    @Override
-    protected void startHalOperation() {
-        mChallengeResult = null;
-        try {
-            mChallengeResult = getFreshDaemon().generateChallenge(CHALLENGE_TIMEOUT_SEC).value;
-            // send the result to the original caller via mCallback and any waiting callers
-            // that called reuseResult
-            sendChallengeResult(getListener(), mCallback);
-            for (IFaceServiceReceiver receiver : mWaiting) {
-                sendChallengeResult(new ClientMonitorCallbackConverter(receiver), EMPTY_CALLBACK);
-            }
-        } catch (RemoteException e) {
-            Slog.e(TAG, "generateChallenge failed", e);
-            mCallback.onClientFinished(this, false /* success */);
-        } finally {
-            mWaiting = null;
-        }
-    }
-
-    /** @return An arbitrary time value for caching provided to the constructor. */
-    public long getCreatedAt() {
-        return mCreatedAt;
-    }
-
-    /**
-     * Reuse the result of this operation when it is available. The receiver will be notified
-     * immediately if a challenge has already been generated.
-     *
-     * @param receiver receiver to be notified of challenge result
-     */
-    public void reuseResult(@NonNull IFaceServiceReceiver receiver) {
-        if (mWaiting != null) {
-            mWaiting.add(receiver);
-        } else {
-            sendChallengeResult(new ClientMonitorCallbackConverter(receiver), EMPTY_CALLBACK);
-        }
-    }
-
-    private void sendChallengeResult(@NonNull ClientMonitorCallbackConverter receiver,
-            @NonNull ClientMonitorCallback ownerCallback) {
-        Preconditions.checkState(mChallengeResult != null, "result not available");
-        try {
-            receiver.onChallengeGenerated(getSensorId(), getTargetUserId(), mChallengeResult);
-            ownerCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception", e);
-            ownerCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGetFeatureClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGetFeatureClient.java
deleted file mode 100644
index 47aaeec..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceGetFeatureClient.java
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.biometrics.face.V1_0.OptionalBool;
-import android.hardware.biometrics.face.V1_0.Status;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.HalClientMonitor;
-
-import java.util.function.Supplier;
-
-/**
- * Face-specific getFeature client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-public class FaceGetFeatureClient extends HalClientMonitor<IBiometricsFace> {
-
-    private static final String TAG = "FaceGetFeatureClient";
-
-    private final int mFeature;
-    private final int mFaceId;
-    private boolean mValue;
-
-    FaceGetFeatureClient(@NonNull Context context, @NonNull Supplier<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, @Nullable ClientMonitorCallbackConverter listener, int userId,
-            @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            int feature, int faceId) {
-        super(context, lazyDaemon, token, listener, userId, owner, 0 /* cookie */, sensorId,
-                logger, biometricContext);
-        mFeature = feature;
-        mFaceId = faceId;
-    }
-
-    @Override
-    public void unableToStart() {
-        try {
-            getListener().onFeatureGet(false /* success */, new int[0], new boolean[0]);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to send error", e);
-        }
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-        startHalOperation();
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            final OptionalBool result = getFreshDaemon().getFeature(mFeature, mFaceId);
-            int[] features = new int[1];
-            boolean[] featureState = new boolean[1];
-            features[0] = mFeature;
-            featureState[0] = result.value;
-            mValue = result.value;
-
-            getListener().onFeatureGet(result.status == Status.OK, features, featureState);
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to getFeature", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    boolean getValue() {
-        return mValue;
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_GET_FEATURE;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalCleanupClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalCleanupClient.java
deleted file mode 100644
index 89a17c6..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalCleanupClient.java
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.face.Face;
-import android.os.IBinder;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.InternalCleanupClient;
-import com.android.server.biometrics.sensors.InternalEnumerateClient;
-import com.android.server.biometrics.sensors.RemovalClient;
-
-import java.util.List;
-import java.util.Map;
-import java.util.function.Supplier;
-
-/**
- * Face-specific internal cleanup client supporting the
- * {@link android.hardware.biometrics.face.V1_0} HIDL interface.
- */
-class FaceInternalCleanupClient extends InternalCleanupClient<Face, IBiometricsFace> {
-
-    FaceInternalCleanupClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon, int userId, @NonNull String owner,
-            int sensorId, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext,
-            @NonNull BiometricUtils<Face> utils, @NonNull Map<Integer, Long> authenticatorIds) {
-        super(context, lazyDaemon, userId, owner, sensorId, logger, biometricContext,
-                utils, authenticatorIds);
-    }
-
-    @Override
-    protected InternalEnumerateClient<IBiometricsFace> getEnumerateClient(Context context,
-            Supplier<IBiometricsFace> lazyDaemon, IBinder token, int userId, String owner,
-            List<Face> enrolledList, BiometricUtils<Face> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        return new FaceInternalEnumerateClient(context, lazyDaemon, token, userId, owner,
-                enrolledList, utils, sensorId, logger, biometricContext);
-    }
-
-    @Override
-    protected RemovalClient<Face, IBiometricsFace> getRemovalClient(Context context,
-            Supplier<IBiometricsFace> lazyDaemon, IBinder token,
-            int biometricId, int userId, String owner, BiometricUtils<Face> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            Map<Integer, Long> authenticatorIds) {
-        // Internal remove does not need to send results to anyone. Cleanup (enumerate + remove)
-        // is all done internally.
-        return new FaceRemovalClient(context, lazyDaemon, token,
-                null /* ClientMonitorCallbackConverter */, biometricId, userId, owner, utils,
-                sensorId, logger, biometricContext, authenticatorIds);
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalEnumerateClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalEnumerateClient.java
deleted file mode 100644
index 250dd7e..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceInternalEnumerateClient.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.face.Face;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.InternalEnumerateClient;
-
-import java.util.List;
-import java.util.function.Supplier;
-
-/**
- * Face-specific internal enumerate client supporting the
- * {@link android.hardware.biometrics.face.V1_0} HIDL interface.
- */
-class FaceInternalEnumerateClient extends InternalEnumerateClient<IBiometricsFace> {
-    private static final String TAG = "FaceInternalEnumerateClient";
-
-    FaceInternalEnumerateClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon, @NonNull IBinder token, int userId,
-            @NonNull String owner, @NonNull List<Face> enrolledList,
-            @NonNull BiometricUtils<Face> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        super(context, lazyDaemon, token, userId, owner, enrolledList, utils, sensorId,
-                logger, biometricContext);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().enumerate();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting enumerate", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRemovalClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRemovalClient.java
deleted file mode 100644
index 0ee7a35..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRemovalClient.java
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.face.Face;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.RemovalClient;
-
-import java.util.Map;
-import java.util.function.Supplier;
-
-/**
- * Face-specific removal client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-class FaceRemovalClient extends RemovalClient<Face, IBiometricsFace> {
-    private static final String TAG = "FaceRemovalClient";
-
-    private final int mBiometricId;
-
-    FaceRemovalClient(@NonNull Context context, @NonNull Supplier<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, @NonNull ClientMonitorCallbackConverter listener,
-            int biometricId, int userId, @NonNull String owner, @NonNull BiometricUtils<Face> utils,
-            int sensorId, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext,
-            @NonNull Map<Integer, Long> authenticatorIds) {
-        super(context, lazyDaemon, token, listener, userId, owner, utils, sensorId, logger,
-                biometricContext, authenticatorIds);
-        mBiometricId = biometricId;
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().remove(mBiometricId);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting remove", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceResetLockoutClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceResetLockoutClient.java
deleted file mode 100644
index f29b9e8..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceResetLockoutClient.java
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.HalClientMonitor;
-
-import java.util.ArrayList;
-import java.util.function.Supplier;
-
-/**
- * Face-specific resetLockout client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-public class FaceResetLockoutClient extends HalClientMonitor<IBiometricsFace> {
-
-    private static final String TAG = "FaceResetLockoutClient";
-
-    private final ArrayList<Byte> mHardwareAuthToken;
-
-    FaceResetLockoutClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon, int userId, String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull byte[] hardwareAuthToken) {
-        super(context, lazyDaemon, null /* token */, null /* listener */, userId, owner,
-                0 /* cookie */, sensorId, logger, biometricContext);
-
-        mHardwareAuthToken = new ArrayList<>();
-        for (byte b : hardwareAuthToken) {
-            mHardwareAuthToken.add(b);
-        }
-    }
-
-    @Override
-    public void unableToStart() {
-        // Nothing to do here
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-        startHalOperation();
-    }
-
-    public boolean interruptsPrecedingClients() {
-        return true;
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().resetLockout(mHardwareAuthToken);
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to reset lockout", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_RESET_LOCKOUT;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRevokeChallengeClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRevokeChallengeClient.java
deleted file mode 100644
index b7b0dc04..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceRevokeChallengeClient.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.RevokeChallengeClient;
-
-import java.util.function.Supplier;
-
-/**
- * Face-specific revokeChallenge client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-public class FaceRevokeChallengeClient extends RevokeChallengeClient<IBiometricsFace> {
-
-    private static final String TAG = "FaceRevokeChallengeClient";
-
-    FaceRevokeChallengeClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFace> lazyDaemon, @NonNull IBinder token,
-            int userId, @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        super(context, lazyDaemon, token, userId, owner, sensorId, logger, biometricContext);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().revokeChallenge();
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "revokeChallenge failed", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceSetFeatureClient.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceSetFeatureClient.java
deleted file mode 100644
index 3c82f9c..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/FaceSetFeatureClient.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.biometrics.face.V1_0.Status;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.HalClientMonitor;
-
-import java.util.ArrayList;
-import java.util.function.Supplier;
-
-/**
- * Face-specific setFeature client supporting the {@link android.hardware.biometrics.face.V1_0}
- * HIDL interface.
- */
-public class FaceSetFeatureClient extends HalClientMonitor<IBiometricsFace> {
-
-    private static final String TAG = "FaceSetFeatureClient";
-
-    private final int mFeature;
-    private final boolean mEnabled;
-    private final ArrayList<Byte> mHardwareAuthToken;
-    private final int mFaceId;
-
-    FaceSetFeatureClient(@NonNull Context context, @NonNull Supplier<IBiometricsFace> lazyDaemon,
-            @NonNull IBinder token, @NonNull ClientMonitorCallbackConverter listener, int userId,
-            @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            int feature, boolean enabled, byte[] hardwareAuthToken, int faceId) {
-        super(context, lazyDaemon, token, listener, userId, owner, 0 /* cookie */, sensorId,
-                logger, biometricContext);
-        mFeature = feature;
-        mEnabled = enabled;
-        mFaceId = faceId;
-
-        mHardwareAuthToken = new ArrayList<>();
-        for (byte b : hardwareAuthToken) {
-            mHardwareAuthToken.add(b);
-        }
-    }
-
-    @Override
-    public void unableToStart() {
-        try {
-            getListener().onFeatureSet(false /* success */, mFeature);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to send error", e);
-        }
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-
-        startHalOperation();
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            final int result = getFreshDaemon()
-                    .setFeature(mFeature, mEnabled, mHardwareAuthToken, mFaceId);
-            getListener().onFeatureSet(result == Status.OK, mFeature);
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to set feature: " + mFeature + " to enabled: " + mEnabled, e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_SET_FEATURE;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSensorAdapter.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSensorAdapter.java
index a004cae4..9a4c29d 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSensorAdapter.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSensorAdapter.java
@@ -173,9 +173,14 @@
     }
 
     private AidlResponseHandler getAidlResponseHandler() {
-        return new AidlResponseHandler(getContext(), getScheduler(), getSensorProperties().sensorId,
-                mCurrentUserId, mLockoutTracker, mLockoutResetDispatcher,
-                mAuthSessionCoordinator, () -> {}, mAidlResponseHandlerCallback);
+        return new AidlResponseHandler(getContext(),
+                getScheduler(),
+                getSensorProperties().sensorId,
+                mCurrentUserId,
+                mLockoutTracker,
+                mLockoutResetDispatcher,
+                mAuthSessionCoordinator,
+                mAidlResponseHandlerCallback);
     }
 
     private IBiometricsFace getIBiometricsFace() {
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapter.java b/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapter.java
index fa95361..45d0cfe 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapter.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapter.java
@@ -53,7 +53,7 @@
 
     private static final String TAG = "HidlToAidlSessionAdapter";
 
-    private static final int CHALLENGE_TIMEOUT_SEC = 600;
+    @VisibleForTesting static final int CHALLENGE_TIMEOUT_SEC = 600;
     @DurationMillisLong
     private static final int GENERATE_CHALLENGE_REUSE_INTERVAL_MILLIS = 60 * 1000;
     @DurationMillisLong
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/FingerprintService.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/FingerprintService.java
index d762914..deda93c7 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/FingerprintService.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/FingerprintService.java
@@ -72,7 +72,6 @@
 import android.os.ShellCallback;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.provider.Settings;
 import android.util.EventLog;
 import android.util.Pair;
 import android.util.Slog;
@@ -83,7 +82,6 @@
 import com.android.internal.util.DumpUtils;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.server.SystemService;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.sensors.AuthenticationStateListeners;
@@ -94,12 +92,8 @@
 import com.android.server.biometrics.sensors.LockoutResetDispatcher;
 import com.android.server.biometrics.sensors.LockoutTracker;
 import com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintProvider;
-import com.android.server.biometrics.sensors.fingerprint.hidl.Fingerprint21;
-import com.android.server.biometrics.sensors.fingerprint.hidl.Fingerprint21UdfpsMock;
 import com.android.server.companion.virtual.VirtualDeviceManagerInternal;
 
-import com.google.android.collect.Lists;
-
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -886,9 +880,9 @@
 
         @android.annotation.EnforcePermission(android.Manifest.permission.USE_BIOMETRIC_INTERNAL)
         @Override // Binder call
-        public void registerAuthenticatorsLegacy(
+        public void registerAuthenticators(
                 @NonNull FingerprintSensorConfigurations fingerprintSensorConfigurations) {
-            super.registerAuthenticatorsLegacy_enforcePermission();
+            super.registerAuthenticators_enforcePermission();
             if (!fingerprintSensorConfigurations.hasSensorConfigurations()) {
                 Slog.d(TAG, "No fingerprint sensors available.");
                 return;
@@ -897,30 +891,6 @@
         }
 
         @android.annotation.EnforcePermission(android.Manifest.permission.USE_BIOMETRIC_INTERNAL)
-        @Override // Binder call
-        public void registerAuthenticators(
-                @NonNull List<FingerprintSensorPropertiesInternal> hidlSensors) {
-            super.registerAuthenticators_enforcePermission();
-
-            mRegistry.registerAll(() -> {
-                List<String> aidlSensors = new ArrayList<>();
-                final String[] instances = mAidlInstanceNameSupplier.get();
-                if (instances != null) {
-                    aidlSensors.addAll(Lists.newArrayList(instances));
-                }
-
-                final Pair<List<FingerprintSensorPropertiesInternal>, List<String>>
-                        filteredInstances = filterAvailableHalInstances(hidlSensors, aidlSensors);
-
-                final List<ServiceProvider> providers = new ArrayList<>();
-                providers.addAll(getHidlProviders(filteredInstances.first));
-                providers.addAll(getAidlProviders(filteredInstances.second));
-
-                return providers;
-            });
-        }
-
-        @android.annotation.EnforcePermission(android.Manifest.permission.USE_BIOMETRIC_INTERNAL)
         @Override
         public void addAuthenticatorsRegisteredCallback(
                 IFingerprintAuthenticatorsRegisteredCallback callback) {
@@ -1086,22 +1056,15 @@
 
                     return null;
                 };
-        if (Flags.deHidl()) {
-            mFingerprintProviderFunction = fingerprintProviderFunction == null
-                    ? (filteredSensorProps, resetLockoutRequiresHardwareAuthToken) ->
-                            new FingerprintProvider(
-                                    getContext(), mBiometricStateCallback,
-                                    mAuthenticationStateListeners,
-                                    filteredSensorProps.second,
-                                    filteredSensorProps.first, mLockoutResetDispatcher,
-                                    mGestureAvailabilityDispatcher,
-                                    mBiometricContext,
-                                    resetLockoutRequiresHardwareAuthToken)
-                    : fingerprintProviderFunction;
-        } else {
-            mFingerprintProviderFunction =
-                    (filteredSensorProps, resetLockoutRequiresHardwareAuthToken) -> null;
-        }
+        mFingerprintProviderFunction = fingerprintProviderFunction != null
+                ? fingerprintProviderFunction :
+                        (filteredSensorProps, resetLockoutRequiresHardwareAuthToken) ->
+                                new FingerprintProvider(getContext(), mBiometricStateCallback,
+                                        mAuthenticationStateListeners, filteredSensorProps.second,
+                                        filteredSensorProps.first, mLockoutResetDispatcher,
+                                        mGestureAvailabilityDispatcher, mBiometricContext,
+                                        resetLockoutRequiresHardwareAuthToken);
+
         mHandler = new Handler(Looper.getMainLooper());
         mRegistry = new FingerprintServiceRegistry(mServiceWrapper, biometricServiceSupplier);
         mRegistry.addAllRegisteredCallback(new IFingerprintAuthenticatorsRegisteredCallback.Stub() {
@@ -1160,74 +1123,6 @@
                 .getSensorPropForInstance(finalSensorInstance));
     }
 
-    private Pair<List<FingerprintSensorPropertiesInternal>, List<String>>
-                filterAvailableHalInstances(
-            @NonNull List<FingerprintSensorPropertiesInternal> hidlInstances,
-            @NonNull List<String> aidlInstances) {
-        if ((hidlInstances.size() + aidlInstances.size()) <= 1) {
-            return new Pair(hidlInstances, aidlInstances);
-        }
-
-        final int virtualAt = aidlInstances.indexOf("virtual");
-        if (Utils.isFingerprintVirtualEnabled(getContext())) {
-            if (virtualAt != -1) {
-                //only virtual instance should be returned
-                Slog.i(TAG, "virtual hal is used");
-                return new Pair(new ArrayList<>(), List.of(aidlInstances.get(virtualAt)));
-            } else {
-                Slog.e(TAG, "Could not find virtual interface while it is enabled");
-                return new Pair(hidlInstances, aidlInstances);
-            }
-        } else {
-            //remove virtual instance
-            aidlInstances = new ArrayList<>(aidlInstances);
-            if (virtualAt != -1) {
-                aidlInstances.remove(virtualAt);
-            }
-            return new Pair(hidlInstances, aidlInstances);
-        }
-    }
-
-    @NonNull
-    private List<ServiceProvider> getHidlProviders(
-            @NonNull List<FingerprintSensorPropertiesInternal> hidlSensors) {
-        final List<ServiceProvider> providers = new ArrayList<>();
-
-        for (FingerprintSensorPropertiesInternal hidlSensor : hidlSensors) {
-            final Fingerprint21 fingerprint21;
-            if ((Build.IS_USERDEBUG || Build.IS_ENG)
-                    && getContext().getResources().getBoolean(R.bool.allow_test_udfps)
-                    && Settings.Secure.getIntForUser(getContext().getContentResolver(),
-                    Fingerprint21UdfpsMock.CONFIG_ENABLE_TEST_UDFPS, 0 /* default */,
-                    UserHandle.USER_CURRENT) != 0) {
-                fingerprint21 = Fingerprint21UdfpsMock.newInstance(getContext(),
-                        mBiometricStateCallback, mAuthenticationStateListeners,
-                        hidlSensor, mLockoutResetDispatcher, mGestureAvailabilityDispatcher,
-                        BiometricContext.getInstance(getContext()));
-            } else {
-                fingerprint21 = Fingerprint21.newInstance(getContext(),
-                        mBiometricStateCallback, mAuthenticationStateListeners, hidlSensor,
-                        mHandler, mLockoutResetDispatcher, mGestureAvailabilityDispatcher);
-            }
-            providers.add(fingerprint21);
-        }
-
-        return providers;
-    }
-
-    @NonNull
-    private List<ServiceProvider> getAidlProviders(@NonNull List<String> instances) {
-        final List<ServiceProvider> providers = new ArrayList<>();
-
-        for (String instance : instances) {
-            final FingerprintProvider provider = mFingerprintProvider.apply(instance);
-            Slog.i(TAG, "Adding AIDL provider: " + instance);
-            providers.add(provider);
-        }
-
-        return providers;
-    }
-
     @Override
     public void onStart() {
         publishBinderService(Context.FINGERPRINT_SERVICE, mServiceWrapper);
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/AidlResponseHandler.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/AidlResponseHandler.java
index bd21cf4..6d1715f 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/AidlResponseHandler.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/AidlResponseHandler.java
@@ -25,7 +25,6 @@
 import android.hardware.keymaster.HardwareAuthToken;
 import android.util.Slog;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.HardwareAuthTokenUtils;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.sensors.AcquisitionClient;
@@ -53,16 +52,6 @@
     /**
      * Interface to send results to the AidlResponseHandler's owner.
      */
-    public interface HardwareUnavailableCallback {
-        /**
-         * Invoked when the HAL sends ERROR_HW_UNAVAILABLE.
-         */
-        void onHardwareUnavailable();
-    }
-
-    /**
-     * Interface to send results to the AidlResponseHandler's owner.
-     */
     public interface AidlResponseHandlerCallback {
         /**
          * Invoked when enrollment is successful.
@@ -90,8 +79,6 @@
     @NonNull
     private final AuthSessionCoordinator mAuthSessionCoordinator;
     @NonNull
-    private final HardwareUnavailableCallback mHardwareUnavailableCallback;
-    @NonNull
     private final AidlResponseHandlerCallback mAidlResponseHandlerCallback;
 
     public AidlResponseHandler(@NonNull Context context,
@@ -99,24 +86,6 @@
             @NonNull LockoutTracker lockoutTracker,
             @NonNull LockoutResetDispatcher lockoutResetDispatcher,
             @NonNull AuthSessionCoordinator authSessionCoordinator,
-            @NonNull HardwareUnavailableCallback hardwareUnavailableCallback) {
-        this(context, scheduler, sensorId, userId, lockoutTracker, lockoutResetDispatcher,
-                authSessionCoordinator, hardwareUnavailableCallback,
-                new AidlResponseHandlerCallback() {
-                    @Override
-                    public void onEnrollSuccess() {}
-
-                    @Override
-                    public void onHardwareUnavailable() {}
-                });
-    }
-
-    public AidlResponseHandler(@NonNull Context context,
-            @NonNull BiometricScheduler scheduler, int sensorId, int userId,
-            @NonNull LockoutTracker lockoutTracker,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull AuthSessionCoordinator authSessionCoordinator,
-            @NonNull HardwareUnavailableCallback hardwareUnavailableCallback,
             @NonNull AidlResponseHandlerCallback aidlResponseHandlerCallback) {
         mContext = context;
         mScheduler = scheduler;
@@ -125,7 +94,6 @@
         mLockoutTracker = lockoutTracker;
         mLockoutResetDispatcher = lockoutResetDispatcher;
         mAuthSessionCoordinator = authSessionCoordinator;
-        mHardwareUnavailableCallback = hardwareUnavailableCallback;
         mAidlResponseHandlerCallback = aidlResponseHandlerCallback;
     }
 
@@ -171,11 +139,7 @@
         handleResponse(ErrorConsumer.class, (c) -> {
             c.onError(error, vendorCode);
             if (error == Error.HW_UNAVAILABLE) {
-                if (Flags.deHidl()) {
-                    mAidlResponseHandlerCallback.onHardwareUnavailable();
-                } else {
-                    mHardwareUnavailableCallback.onHardwareUnavailable();
-                }
+                mAidlResponseHandlerCallback.onHardwareUnavailable();
             }
         });
     }
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClient.java
index 93d1b6e..5edcbed 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClient.java
@@ -31,23 +31,16 @@
 import android.hardware.biometrics.BiometricManager.Authenticators;
 import android.hardware.biometrics.BiometricSourceType;
 import android.hardware.biometrics.common.ICancellationSignal;
-import android.hardware.biometrics.common.OperationState;
 import android.hardware.biometrics.fingerprint.PointerContext;
 import android.hardware.fingerprint.FingerprintAuthenticateOptions;
 import android.hardware.fingerprint.FingerprintManager;
 import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
 import android.hardware.fingerprint.ISidefpsController;
 import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.Build;
-import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
-import android.os.UserHandle;
-import android.provider.Settings;
 import android.util.Slog;
 
-import com.android.internal.R;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.CallbackWithProbe;
@@ -67,7 +60,6 @@
 import com.android.server.biometrics.sensors.fingerprint.PowerPressHandler;
 import com.android.server.biometrics.sensors.fingerprint.Udfps;
 
-import java.time.Clock;
 import java.util.ArrayList;
 import java.util.function.Supplier;
 
@@ -79,30 +71,17 @@
         extends AuthenticationClient<AidlSession, FingerprintAuthenticateOptions>
         implements Udfps, LockoutConsumer, PowerPressHandler {
     private static final String TAG = "FingerprintAuthenticationClient";
-    private static final int MESSAGE_AUTH_SUCCESS = 2;
-    private static final int MESSAGE_FINGER_UP = 3;
     @NonNull
     private final SensorOverlays mSensorOverlays;
     @NonNull
     private final FingerprintSensorPropertiesInternal mSensorProps;
     @NonNull
     private final CallbackWithProbe<Probe> mALSProbeCallback;
-    private final Handler mHandler;
-    private final int mSkipWaitForPowerAcquireMessage;
-    private final int mSkipWaitForPowerVendorAcquireMessage;
-    private final long mFingerUpIgnoresPower = 500;
     private final AuthSessionCoordinator mAuthSessionCoordinator;
     @NonNull private final AuthenticationStateListeners mAuthenticationStateListeners;
     @Nullable
     private ICancellationSignal mCancellationSignal;
     private boolean mIsPointerDown;
-    private long mWaitForAuthKeyguard;
-    private long mWaitForAuthBp;
-    private long mIgnoreAuthFor;
-    private long mSideFpsLastAcquireStartTime;
-    private Runnable mAuthSuccessRunnable;
-    private final Clock mClock;
-
 
     public FingerprintAuthenticationClient(
             @NonNull Context context,
@@ -125,9 +104,7 @@
             @NonNull AuthenticationStateListeners authenticationStateListeners,
             boolean allowBackgroundAuthentication,
             @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @NonNull Handler handler,
             @Authenticators.Types int biometricStrength,
-            @NonNull Clock clock,
             @Nullable LockoutTracker lockoutTracker) {
         super(
                 context,
@@ -156,39 +133,7 @@
         mAuthenticationStateListeners = authenticationStateListeners;
         mSensorProps = sensorProps;
         mALSProbeCallback = getLogger().getAmbientLightProbe(false /* startWithClient */);
-        mHandler = handler;
-
-        mWaitForAuthKeyguard =
-                context.getResources()
-                        .getInteger(R.integer.config_sidefpsKeyguardPowerPressWindow);
-        mWaitForAuthBp =
-                context.getResources().getInteger(R.integer.config_sidefpsBpPowerPressWindow);
-        mIgnoreAuthFor =
-                context.getResources().getInteger(R.integer.config_sidefpsPostAuthDowntime);
-
-        mSkipWaitForPowerAcquireMessage =
-                context.getResources().getInteger(
-                        R.integer.config_sidefpsSkipWaitForPowerAcquireMessage);
-        mSkipWaitForPowerVendorAcquireMessage =
-                context.getResources().getInteger(
-                        R.integer.config_sidefpsSkipWaitForPowerVendorAcquireMessage);
         mAuthSessionCoordinator = biometricContext.getAuthSessionCoordinator();
-        mSideFpsLastAcquireStartTime = -1;
-        mClock = clock;
-
-        if (mSensorProps.isAnySidefpsType()) {
-            if (Build.isDebuggable()) {
-                mWaitForAuthKeyguard = Settings.Secure.getIntForUser(context.getContentResolver(),
-                        Settings.Secure.FINGERPRINT_SIDE_FPS_KG_POWER_WINDOW,
-                        (int) mWaitForAuthKeyguard, UserHandle.USER_CURRENT);
-                mWaitForAuthBp = Settings.Secure.getIntForUser(context.getContentResolver(),
-                        Settings.Secure.FINGERPRINT_SIDE_FPS_BP_POWER_WINDOW, (int) mWaitForAuthBp,
-                        UserHandle.USER_CURRENT);
-                mIgnoreAuthFor = Settings.Secure.getIntForUser(context.getContentResolver(),
-                        Settings.Secure.FINGERPRINT_SIDE_FPS_AUTH_DOWNTIME, (int) mIgnoreAuthFor,
-                        UserHandle.USER_CURRENT);
-            }
-        }
     }
 
     @Override
@@ -316,11 +261,7 @@
         }
 
         try {
-            if (Flags.deHidl()) {
-                startAuthentication();
-            } else {
-                mCancellationSignal = doAuthenticate();
-            }
+            doAuthenticate();
         } catch (RemoteException e) {
             Slog.e(TAG, "Remote exception", e);
             onError(
@@ -334,49 +275,7 @@
         }
     }
 
-    private ICancellationSignal doAuthenticate() throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-
-        final OperationContextExt opContext = getOperationContext();
-        final ICancellationSignal cancel;
-        if (session.hasContextMethods()) {
-            cancel = session.getSession().authenticateWithContext(
-                    mOperationId, opContext.toAidlContext(getOptions()));
-        } else {
-            cancel = session.getSession().authenticate(mOperationId);
-        }
-
-        getBiometricContext().subscribe(opContext, ctx -> {
-            if (session.hasContextMethods()) {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                    // TODO(b/317414324): Deprecate setIgnoreDisplayTouches
-                    if (ctx.operationState != null && ctx.operationState.getTag()
-                            == OperationState.fingerprintOperationState) {
-                        session.getSession().setIgnoreDisplayTouches(
-                                ctx.operationState.getFingerprintOperationState().isHardwareIgnoringTouches);
-                    }
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            }
-
-            // TODO(b/243836005): this should come via ctx
-            final boolean isAwake = getBiometricContext().isAwake();
-            if (isAwake) {
-                mALSProbeCallback.getProbe().enable();
-            } else {
-                mALSProbeCallback.getProbe().disable();
-            }
-        });
-        if (getBiometricContext().isAwake()) {
-            mALSProbeCallback.getProbe().enable();
-        }
-
-        return cancel;
-    }
-
-    private void startAuthentication() {
+    private void doAuthenticate() throws RemoteException {
         final AidlSession session = getFreshDaemon();
         final OperationContextExt opContext = getOperationContext();
 
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClient.java
index 8d2b46f..1db2fad 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClient.java
@@ -23,7 +23,6 @@
 import android.content.Context;
 import android.hardware.biometrics.BiometricRequestConstants;
 import android.hardware.biometrics.common.ICancellationSignal;
-import android.hardware.biometrics.common.OperationState;
 import android.hardware.fingerprint.FingerprintAuthenticateOptions;
 import android.hardware.fingerprint.IUdfpsOverlayController;
 import android.os.IBinder;
@@ -31,7 +30,6 @@
 import android.util.Slog;
 
 import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -106,13 +104,8 @@
         resetIgnoreDisplayTouches();
         mSensorOverlays.show(getSensorId(), BiometricRequestConstants.REASON_AUTH_KEYGUARD,
                 this);
-
         try {
-            if (Flags.deHidl()) {
-                startDetectInteraction();
-            } else {
-                mCancellationSignal = doDetectInteraction();
-            }
+            doDetectInteraction();
         } catch (RemoteException e) {
             Slog.e(TAG, "Remote exception when requesting finger detect", e);
             mSensorOverlays.hide(getSensorId());
@@ -120,33 +113,7 @@
         }
     }
 
-    private ICancellationSignal doDetectInteraction() throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-
-        if (session.hasContextMethods()) {
-            final OperationContextExt opContext = getOperationContext();
-            final ICancellationSignal cancel = session.getSession().detectInteractionWithContext(
-                    opContext.toAidlContext(mOptions));
-            getBiometricContext().subscribe(opContext, ctx -> {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                    // TODO(b/317414324): Deprecate setIgnoreDisplayTouches
-                    if (ctx.operationState != null && ctx.operationState.getTag()
-                            == OperationState.fingerprintOperationState) {
-                        session.getSession().setIgnoreDisplayTouches(
-                                ctx.operationState.getFingerprintOperationState().isHardwareIgnoringTouches);
-                    }
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            });
-            return cancel;
-        } else {
-            return session.getSession().detectInteraction();
-        }
-    }
-
-    private void startDetectInteraction() throws RemoteException {
+    private void doDetectInteraction() throws RemoteException {
         final AidlSession session = getFreshDaemon();
 
         if (session.hasContextMethods()) {
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClient.java
index a24ab1d..86ebabe 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClient.java
@@ -26,7 +26,6 @@
 import android.hardware.biometrics.BiometricFingerprintConstants.FingerprintAcquired;
 import android.hardware.biometrics.BiometricStateListener;
 import android.hardware.biometrics.common.ICancellationSignal;
-import android.hardware.biometrics.common.OperationState;
 import android.hardware.biometrics.fingerprint.PointerContext;
 import android.hardware.fingerprint.Fingerprint;
 import android.hardware.fingerprint.FingerprintEnrollOptions;
@@ -40,7 +39,6 @@
 import android.util.Slog;
 import android.view.accessibility.AccessibilityManager;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.HardwareAuthTokenUtils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
@@ -209,11 +207,7 @@
 
         BiometricNotificationUtils.cancelBadCalibrationNotification(getContext());
         try {
-            if (Flags.deHidl()) {
-                startEnroll();
-            } else {
-                mCancellationSignal = doEnroll();
-            }
+            doEnroll();
         } catch (RemoteException e) {
             Slog.e(TAG, "Remote exception when requesting enroll", e);
             onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_UNABLE_TO_PROCESS,
@@ -222,35 +216,7 @@
         }
     }
 
-    private ICancellationSignal doEnroll() throws RemoteException {
-        final AidlSession session = getFreshDaemon();
-        final HardwareAuthToken hat =
-                HardwareAuthTokenUtils.toHardwareAuthToken(mHardwareAuthToken);
-
-        if (session.hasContextMethods()) {
-            final OperationContextExt opContext = getOperationContext();
-            final ICancellationSignal cancel = session.getSession().enrollWithContext(
-                    hat, opContext.toAidlContext());
-            getBiometricContext().subscribe(opContext, ctx -> {
-                try {
-                    session.getSession().onContextChanged(ctx);
-                    // TODO(b/317414324): Deprecate setIgnoreDisplayTouches
-                    if (ctx.operationState != null && ctx.operationState.getTag()
-                            == OperationState.fingerprintOperationState) {
-                        session.getSession().setIgnoreDisplayTouches(
-                                ctx.operationState.getFingerprintOperationState().isHardwareIgnoringTouches);
-                    }
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Unable to notify context changed", e);
-                }
-            });
-            return cancel;
-        } else {
-            return session.getSession().enroll(hat);
-        }
-    }
-
-    private void startEnroll() throws RemoteException {
+    private void doEnroll() throws RemoteException {
         final AidlSession session = getFreshDaemon();
         final HardwareAuthToken hat =
                 HardwareAuthTokenUtils.toHardwareAuthToken(mHardwareAuthToken);
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProvider.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProvider.java
index 9290f8a..beb3f2f 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProvider.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProvider.java
@@ -29,12 +29,10 @@
 import android.content.res.TypedArray;
 import android.hardware.biometrics.BiometricAuthenticator;
 import android.hardware.biometrics.BiometricsProtoEnums;
-import android.hardware.biometrics.ComponentInfoInternal;
 import android.hardware.biometrics.IInvalidationCallback;
 import android.hardware.biometrics.ITestSession;
 import android.hardware.biometrics.ITestSessionCallback;
 import android.hardware.biometrics.SensorLocationInternal;
-import android.hardware.biometrics.common.ComponentInfo;
 import android.hardware.biometrics.fingerprint.IFingerprint;
 import android.hardware.biometrics.fingerprint.PointerContext;
 import android.hardware.biometrics.fingerprint.SensorProps;
@@ -50,10 +48,8 @@
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.RemoteException;
 import android.os.ServiceManager;
-import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.util.Slog;
@@ -63,7 +59,6 @@
 import com.android.server.biometrics.AuthenticationStatsBroadcastReceiver;
 import com.android.server.biometrics.AuthenticationStatsCollector;
 import com.android.server.biometrics.BiometricHandlerProvider;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.Utils;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
@@ -96,10 +91,8 @@
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicLong;
-import java.util.stream.Collectors;
 
 /**
  * Provider for a single instance of the {@link IFingerprint} HAL.
@@ -200,11 +193,7 @@
         mAuthenticationStateListeners = authenticationStateListeners;
         mHalInstanceName = halInstanceName;
         mFingerprintSensors = new SensorList<>(ActivityManager.getService());
-        if (Flags.deHidl()) {
-            mHandler = biometricHandlerProvider.getFingerprintHandler();
-        } else {
-            mHandler = new Handler(Looper.getMainLooper());
-        }
+        mHandler = biometricHandlerProvider.getFingerprintHandler();
         mLockoutResetDispatcher = lockoutResetDispatcher;
         mActivityTaskManager = ActivityTaskManager.getInstance();
         mTaskStackListener = new BiometricTaskStackListener();
@@ -230,66 +219,19 @@
 
     private void initSensors(boolean resetLockoutRequiresHardwareAuthToken, SensorProps[] props,
             GestureAvailabilityDispatcher gestureAvailabilityDispatcher) {
-        if (Flags.deHidl()) {
-            if (!resetLockoutRequiresHardwareAuthToken) {
-                Slog.d(getTag(), "Adding HIDL configs");
-                for (SensorProps sensorConfig: props) {
-                    addHidlSensors(sensorConfig, gestureAvailabilityDispatcher,
-                            resetLockoutRequiresHardwareAuthToken);
-                }
-            } else {
-                Slog.d(getTag(), "Adding AIDL configs");
-                final List<SensorLocationInternal> workaroundLocations =
-                        getWorkaroundSensorProps(mContext);
-                for (SensorProps prop : props) {
-                    addAidlSensors(prop, gestureAvailabilityDispatcher, workaroundLocations,
-                            resetLockoutRequiresHardwareAuthToken);
-                }
+        if (!resetLockoutRequiresHardwareAuthToken) {
+            Slog.d(getTag(), "Adding HIDL configs");
+            for (SensorProps sensorConfig: props) {
+                addHidlSensors(sensorConfig, gestureAvailabilityDispatcher,
+                        resetLockoutRequiresHardwareAuthToken);
             }
         } else {
+            Slog.d(getTag(), "Adding AIDL configs");
             final List<SensorLocationInternal> workaroundLocations =
                     getWorkaroundSensorProps(mContext);
-
             for (SensorProps prop : props) {
-                final int sensorId = prop.commonProps.sensorId;
-                final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
-                if (prop.commonProps.componentInfo != null) {
-                    for (ComponentInfo info : prop.commonProps.componentInfo) {
-                        componentInfo.add(new ComponentInfoInternal(info.componentId,
-                                info.hardwareVersion, info.firmwareVersion, info.serialNumber,
-                                info.softwareVersion));
-                    }
-                }
-                final FingerprintSensorPropertiesInternal internalProp =
-                        new FingerprintSensorPropertiesInternal(prop.commonProps.sensorId,
-                                prop.commonProps.sensorStrength,
-                                prop.commonProps.maxEnrollmentsPerUser,
-                                componentInfo,
-                                prop.sensorType,
-                                prop.halControlsIllumination,
-                                true /* resetLockoutRequiresHardwareAuthToken */,
-                                !workaroundLocations.isEmpty() ? workaroundLocations :
-                                        Arrays.stream(prop.sensorLocations).map(
-                                                        location -> new SensorLocationInternal(
-                                                                location.display,
-                                                                location.sensorLocationX,
-                                                                location.sensorLocationY,
-                                                                location.sensorRadius))
-                                                .collect(Collectors.toList()));
-                final Sensor sensor = new Sensor(this, mContext, mHandler, internalProp,
-                        mBiometricContext);
-                sensor.init(gestureAvailabilityDispatcher, mLockoutResetDispatcher);
-                final int sessionUserId =
-                        sensor.getLazySession().get() == null ? UserHandle.USER_NULL :
-                                sensor.getLazySession().get().getUserId();
-                mFingerprintSensors.addSensor(sensorId, sensor, sessionUserId,
-                        new SynchronousUserSwitchObserver() {
-                            @Override
-                            public void onUserSwitching(int newUserId) {
-                                scheduleInternalCleanup(sensorId, newUserId, null /* callback */);
-                            }
-                        });
-                Slog.d(getTag(), "Added: " + mFingerprintSensors.get(sensorId).toString());
+                addAidlSensors(prop, gestureAvailabilityDispatcher, workaroundLocations,
+                        resetLockoutRequiresHardwareAuthToken);
             }
         }
     }
@@ -546,23 +488,7 @@
                     mFingerprintSensors.get(sensorId).getSensorProperties(),
                     mUdfpsOverlayController, mSidefpsController,
                     mAuthenticationStateListeners, maxTemplatesPerUser, enrollReason, options);
-            if (Flags.deHidl()) {
-                scheduleForSensor(sensorId, client, mBiometricStateCallback);
-            } else {
-                scheduleForSensor(sensorId, client, new ClientMonitorCompositeCallback(
-                        mBiometricStateCallback, new ClientMonitorCallback() {
-                            @Override
-                            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                                    boolean success) {
-                                ClientMonitorCallback.super.onClientFinished(
-                                        clientMonitor, success);
-                                if (success) {
-                                    scheduleLoadAuthenticatorIdsForUser(sensorId, userId);
-                                    scheduleInvalidationRequest(sensorId, userId);
-                                }
-                            }
-                        }));
-            }
+            scheduleForSensor(sensorId, client, mBiometricStateCallback);
         });
         return id;
     }
@@ -605,13 +531,8 @@
             final int userId = options.getUserId();
             final int sensorId = options.getSensorId();
             final boolean isStrongBiometric = Utils.isStrongBiometric(sensorId);
-            final LockoutTracker lockoutTracker;
-            if (Flags.deHidl()) {
-                lockoutTracker = mFingerprintSensors.get(sensorId)
-                        .getLockoutTracker(true /* forAuth */);
-            } else {
-                lockoutTracker = null;
-            }
+            final LockoutTracker lockoutTracker = mFingerprintSensors.get(sensorId)
+                    .getLockoutTracker(true /* forAuth */);
             final FingerprintAuthenticationClient client = new FingerprintAuthenticationClient(
                     mContext, mFingerprintSensors.get(sensorId).getLazySession(), token, requestId,
                     callback, operationId, restricted, options, cookie,
@@ -622,22 +543,16 @@
                     mTaskStackListener,
                     mUdfpsOverlayController, mSidefpsController,
                     mAuthenticationStateListeners, allowBackgroundAuthentication,
-                    mFingerprintSensors.get(sensorId).getSensorProperties(), mHandler,
+                    mFingerprintSensors.get(sensorId).getSensorProperties(),
                     Utils.getCurrentStrength(sensorId),
-                    SystemClock.elapsedRealtimeClock(),
                     lockoutTracker);
             scheduleForSensor(sensorId, client, new ClientMonitorCallback() {
 
                 @Override
                 public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
                     mBiometricStateCallback.onClientStarted(clientMonitor);
-                    if (Flags.deHidl()) {
-                        mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
-                                mAuthSessionCoordinator.authStartedFor(userId, sensorId,
-                                        requestId));
-                    } else {
-                        mAuthSessionCoordinator.authStartedFor(userId, sensorId, requestId);
-                    }
+                    mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
+                            mAuthSessionCoordinator.authStartedFor(userId, sensorId, requestId));
                 }
 
                 @Override
@@ -649,15 +564,10 @@
                 public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
                         boolean success) {
                     mBiometricStateCallback.onClientFinished(clientMonitor, success);
-                    if (Flags.deHidl()) {
-                        mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
-                                mAuthSessionCoordinator.authEndedFor(userId,
-                                        Utils.getCurrentStrength(sensorId), sensorId, requestId,
-                                        success));
-                    } else {
-                        mAuthSessionCoordinator.authEndedFor(userId,
-                                Utils.getCurrentStrength(sensorId), sensorId, requestId, success);
-                    }
+                    mBiometricHandlerProvider.getBiometricCallbackHandler().post(() ->
+                            mAuthSessionCoordinator.authEndedFor(userId,
+                                    Utils.getCurrentStrength(sensorId), sensorId, requestId,
+                                    success));
                 }
             });
 
@@ -764,10 +674,7 @@
 
     @Override
     public boolean isHardwareDetected(int sensorId) {
-        if (Flags.deHidl()) {
-            return mFingerprintSensors.get(sensorId).isHardwareDetected(mHalInstanceName);
-        }
-        return hasHalInstance();
+        return mFingerprintSensors.get(sensorId).isHardwareDetected(mHalInstanceName);
     }
 
     @Override
@@ -805,12 +712,7 @@
 
     @Override
     public int getLockoutModeForUser(int sensorId, int userId) {
-        if (Flags.deHidl()) {
-            return mFingerprintSensors.get(sensorId).getLockoutModeForUser(userId);
-        } else {
-            return mBiometricContext.getAuthSessionCoordinator().getLockoutStateFor(userId,
-                    Utils.getCurrentStrength(sensorId));
-        }
+        return mFingerprintSensors.get(sensorId).getLockoutModeForUser(userId);
     }
 
     @Override
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/Sensor.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/Sensor.java
index af88c62..b7e3f70 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/Sensor.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/aidl/Sensor.java
@@ -42,7 +42,6 @@
 import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.util.FrameworkStatsLog;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.SensorServiceStateProto;
 import com.android.server.biometrics.SensorStateProto;
 import com.android.server.biometrics.UserStateProto;
@@ -58,7 +57,6 @@
 import com.android.server.biometrics.sensors.LockoutTracker;
 import com.android.server.biometrics.sensors.StartUserClient;
 import com.android.server.biometrics.sensors.StopUserClient;
-import com.android.server.biometrics.sensors.UserAwareBiometricScheduler;
 import com.android.server.biometrics.sensors.UserSwitchProvider;
 import com.android.server.biometrics.sensors.fingerprint.FingerprintUtils;
 import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
@@ -110,13 +108,6 @@
     }
 
     Sensor(@NonNull FingerprintProvider provider, @NonNull Context context,
-            @NonNull Handler handler, @NonNull FingerprintSensorPropertiesInternal sensorProperties,
-            @NonNull BiometricContext biometricContext) {
-        this(provider, context, handler, sensorProperties,
-                biometricContext, null);
-    }
-
-    Sensor(@NonNull FingerprintProvider provider, @NonNull Context context,
             @NonNull Handler handler, @NonNull SensorProps sensorProp,
             @NonNull BiometricContext biometricContext,
             @NonNull List<SensorLocationInternal> workaroundLocation,
@@ -131,13 +122,8 @@
      */
     public void init(@NonNull GestureAvailabilityDispatcher gestureAvailabilityDispatcher,
             @NonNull LockoutResetDispatcher lockoutResetDispatcher) {
-        if (Flags.deHidl()) {
-            setScheduler(getBiometricSchedulerForInit(gestureAvailabilityDispatcher,
-                    lockoutResetDispatcher));
-        } else {
-            setScheduler(getUserAwareBiometricSchedulerForInit(gestureAvailabilityDispatcher,
-                    lockoutResetDispatcher));
-        }
+        setScheduler(getBiometricSchedulerForInit(gestureAvailabilityDispatcher,
+                lockoutResetDispatcher));
         mLockoutTracker = new LockoutCache();
         mLazySession = () -> mCurrentSession != null ? mCurrentSession : null;
     }
@@ -168,7 +154,7 @@
                         final AidlResponseHandler resultController = new AidlResponseHandler(
                                 mContext, mScheduler, sensorId, newUserId,
                                 mLockoutTracker, lockoutResetDispatcher,
-                                mBiometricContext.getAuthSessionCoordinator(), () -> {},
+                                mBiometricContext.getAuthSessionCoordinator(),
                                 new AidlResponseHandler.AidlResponseHandlerCallback() {
                                     @Override
                                     public void onEnrollSuccess() {
@@ -192,45 +178,6 @@
                 });
     }
 
-    private UserAwareBiometricScheduler<ISession, AidlSession>
-            getUserAwareBiometricSchedulerForInit(
-                    GestureAvailabilityDispatcher gestureAvailabilityDispatcher,
-                    LockoutResetDispatcher lockoutResetDispatcher) {
-        return new UserAwareBiometricScheduler<>(TAG,
-                BiometricScheduler.sensorTypeFromFingerprintProperties(mSensorProperties),
-                gestureAvailabilityDispatcher,
-                () -> mCurrentSession != null ? mCurrentSession.getUserId() : UserHandle.USER_NULL,
-                new UserAwareBiometricScheduler.UserSwitchCallback() {
-                    @NonNull
-                    @Override
-                    public StopUserClient<ISession> getStopUserClient(int userId) {
-                        return new FingerprintStopUserClient(mContext,
-                                () -> mLazySession.get().getSession(), mToken,
-                                userId, mSensorProperties.sensorId,
-                                BiometricLogger.ofUnknown(mContext), mBiometricContext,
-                                () -> mCurrentSession = null);
-                    }
-
-                    @NonNull
-                    @Override
-                    public StartUserClient<IFingerprint, ISession> getStartUserClient(
-                            int newUserId) {
-                        final int sensorId = mSensorProperties.sensorId;
-
-                        final AidlResponseHandler resultController = new AidlResponseHandler(
-                                mContext, mScheduler, sensorId, newUserId,
-                                mLockoutTracker, lockoutResetDispatcher,
-                                mBiometricContext.getAuthSessionCoordinator(), () -> {
-                                    Slog.e(TAG, "Fingerprint hardware unavailable.");
-                                    mCurrentSession = null;
-                                });
-
-                        return Sensor.this.getStartUserClient(resultController, sensorId,
-                                newUserId);
-                    }
-                });
-    }
-
     private FingerprintStartUserClient getStartUserClient(AidlResponseHandler resultController,
             int sensorId, int newUserId) {
         final StartUserClient.UserStartedCallback<ISession> userStartedCallback =
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/BiometricTestSessionImpl.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/BiometricTestSessionImpl.java
deleted file mode 100644
index fc037ae..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/BiometricTestSessionImpl.java
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.ITestSession;
-import android.hardware.biometrics.ITestSessionCallback;
-import android.hardware.fingerprint.Fingerprint;
-import android.hardware.fingerprint.FingerprintEnrollOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.IFingerprintServiceReceiver;
-import android.os.Binder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.fingerprint.FingerprintUtils;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Random;
-import java.util.Set;
-
-/**
- * A test session implementation for the {@link Fingerprint21} provider. See
- * {@link android.hardware.biometrics.BiometricTestSession}.
- */
-public class BiometricTestSessionImpl extends ITestSession.Stub {
-
-    private static final String TAG = "BiometricTestSessionImpl";
-
-    @NonNull private final Context mContext;
-    private final int mSensorId;
-    @NonNull private final ITestSessionCallback mCallback;
-    @NonNull private final BiometricStateCallback mBiometricStateCallback;
-    @NonNull private final Fingerprint21 mFingerprint21;
-    @NonNull private final Fingerprint21.HalResultController mHalResultController;
-    @NonNull private final Set<Integer> mEnrollmentIds;
-    @NonNull private final Random mRandom;
-
-    /**
-     * Internal receiver currently only used for enroll. Results do not need to be forwarded to the
-     * test, since enrollment is a platform-only API. The authentication path is tested through
-     * the public FingerprintManager APIs and does not use this receiver.
-     */
-    private final IFingerprintServiceReceiver mReceiver = new IFingerprintServiceReceiver.Stub() {
-        @Override
-        public void onEnrollResult(Fingerprint fp, int remaining) {
-
-        }
-
-        @Override
-        public void onAcquired(int acquiredInfo, int vendorCode) {
-
-        }
-
-        @Override
-        public void onAuthenticationSucceeded(Fingerprint fp, int userId,
-                boolean isStrongBiometric) {
-
-        }
-
-        @Override
-        public void onFingerprintDetected(int sensorId, int userId, boolean isStrongBiometric) {
-
-        }
-
-        @Override
-        public void onAuthenticationFailed() {
-
-        }
-
-        @Override
-        public void onError(int error, int vendorCode) {
-
-        }
-
-        @Override
-        public void onRemoved(Fingerprint fp, int remaining) {
-
-        }
-
-        @Override
-        public void onChallengeGenerated(int sensorId, int userId, long challenge) {
-
-        }
-
-        @Override
-        public void onUdfpsPointerDown(int sensorId) {
-
-        }
-
-        @Override
-        public void onUdfpsPointerUp(int sensorId) {
-
-        }
-
-        @Override
-        public void onUdfpsOverlayShown() {
-
-        }
-    };
-
-    BiometricTestSessionImpl(@NonNull Context context, int sensorId,
-            @NonNull ITestSessionCallback callback,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull Fingerprint21 fingerprint21,
-            @NonNull Fingerprint21.HalResultController halResultController) {
-        mContext = context;
-        mSensorId = sensorId;
-        mCallback = callback;
-        mFingerprint21 = fingerprint21;
-        mBiometricStateCallback = biometricStateCallback;
-        mHalResultController = halResultController;
-        mEnrollmentIds = new HashSet<>();
-        mRandom = new Random();
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void setTestHalEnabled(boolean enabled) {
-
-        super.setTestHalEnabled_enforcePermission();
-
-        mFingerprint21.setTestHalEnabled(enabled);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void startEnroll(int userId) {
-
-        super.startEnroll_enforcePermission();
-
-        mFingerprint21.scheduleEnroll(mSensorId, new Binder(), new byte[69], userId, mReceiver,
-                mContext.getOpPackageName(), FingerprintManager.ENROLL_ENROLL,
-                (new FingerprintEnrollOptions.Builder()).build());
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void finishEnroll(int userId) {
-
-        super.finishEnroll_enforcePermission();
-
-        int nextRandomId = mRandom.nextInt();
-        while (mEnrollmentIds.contains(nextRandomId)) {
-            nextRandomId = mRandom.nextInt();
-        }
-
-        mEnrollmentIds.add(nextRandomId);
-        mHalResultController.onEnrollResult(0 /* deviceId */,
-                nextRandomId /* fingerId */, userId, 0);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void acceptAuthentication(int userId)  {
-
-        // Fake authentication with any of the existing fingers
-        super.acceptAuthentication_enforcePermission();
-
-        List<Fingerprint> fingerprints = FingerprintUtils.getLegacyInstance(mSensorId)
-                .getBiometricsForUser(mContext, userId);
-        if (fingerprints.isEmpty()) {
-            Slog.w(TAG, "No fingerprints, returning");
-            return;
-        }
-        final int fid = fingerprints.get(0).getBiometricId();
-        final ArrayList<Byte> hat = new ArrayList<>(Collections.nCopies(69, (byte) 0));
-        mHalResultController.onAuthenticated(0 /* deviceId */, fid, userId, hat);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void rejectAuthentication(int userId)  {
-
-        super.rejectAuthentication_enforcePermission();
-
-        mHalResultController.onAuthenticated(0 /* deviceId */, 0 /* fingerId */, userId, null);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void notifyAcquired(int userId, int acquireInfo)  {
-
-        super.notifyAcquired_enforcePermission();
-
-        mHalResultController.onAcquired(0 /* deviceId */, acquireInfo, 0 /* vendorCode */);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void notifyError(int userId, int errorCode)  {
-
-        super.notifyError_enforcePermission();
-
-        mHalResultController.onError(0 /* deviceId */, errorCode, 0 /* vendorCode */);
-    }
-
-    @android.annotation.EnforcePermission(android.Manifest.permission.TEST_BIOMETRIC)
-    @Override
-    public void cleanupInternalState(int userId)  {
-
-        super.cleanupInternalState_enforcePermission();
-
-        mFingerprint21.scheduleInternalCleanup(mSensorId, userId, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                try {
-                    mCallback.onCleanupStarted(clientMonitor.getTargetUserId());
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Remote exception", e);
-                }
-            }
-
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                try {
-                    mCallback.onCleanupFinished(clientMonitor.getTargetUserId());
-                } catch (RemoteException e) {
-                    Slog.e(TAG, "Remote exception", e);
-                }
-            }
-        });
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21.java
deleted file mode 100644
index 33e448b..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21.java
+++ /dev/null
@@ -1,1289 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.app.ActivityManager;
-import android.app.ActivityTaskManager;
-import android.app.SynchronousUserSwitchObserver;
-import android.app.TaskStackListener;
-import android.app.UserSwitchObserver;
-import android.content.Context;
-import android.content.pm.UserInfo;
-import android.hardware.biometrics.BiometricConstants;
-import android.hardware.biometrics.BiometricsProtoEnums;
-import android.hardware.biometrics.IInvalidationCallback;
-import android.hardware.biometrics.ITestSession;
-import android.hardware.biometrics.ITestSessionCallback;
-import android.hardware.biometrics.fingerprint.PointerContext;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.biometrics.fingerprint.V2_2.IBiometricsFingerprintClientCallback;
-import android.hardware.fingerprint.Fingerprint;
-import android.hardware.fingerprint.FingerprintAuthenticateOptions;
-import android.hardware.fingerprint.FingerprintEnrollOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.FingerprintSensorProperties;
-import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
-import android.hardware.fingerprint.IFingerprintServiceReceiver;
-import android.hardware.fingerprint.ISidefpsController;
-import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.IHwBinder;
-import android.os.RemoteException;
-import android.os.UserHandle;
-import android.os.UserManager;
-import android.util.Slog;
-import android.util.proto.ProtoOutputStream;
-
-import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.util.FrameworkStatsLog;
-import com.android.server.biometrics.AuthenticationStatsBroadcastReceiver;
-import com.android.server.biometrics.AuthenticationStatsCollector;
-import com.android.server.biometrics.Flags;
-import com.android.server.biometrics.SensorServiceStateProto;
-import com.android.server.biometrics.SensorStateProto;
-import com.android.server.biometrics.UserStateProto;
-import com.android.server.biometrics.Utils;
-import com.android.server.biometrics.fingerprint.FingerprintServiceDumpProto;
-import com.android.server.biometrics.fingerprint.FingerprintUserStatsProto;
-import com.android.server.biometrics.fingerprint.PerformanceStatsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.AcquisitionClient;
-import com.android.server.biometrics.sensors.AuthSessionCoordinator;
-import com.android.server.biometrics.sensors.AuthenticationClient;
-import com.android.server.biometrics.sensors.AuthenticationConsumer;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.BiometricScheduler;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.EnumerateConsumer;
-import com.android.server.biometrics.sensors.ErrorConsumer;
-import com.android.server.biometrics.sensors.LockoutCache;
-import com.android.server.biometrics.sensors.LockoutResetDispatcher;
-import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.PerformanceTracker;
-import com.android.server.biometrics.sensors.RemovalConsumer;
-import com.android.server.biometrics.sensors.fingerprint.FingerprintUtils;
-import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
-import com.android.server.biometrics.sensors.fingerprint.ServiceProvider;
-import com.android.server.biometrics.sensors.fingerprint.Udfps;
-import com.android.server.biometrics.sensors.fingerprint.aidl.AidlResponseHandler;
-import com.android.server.biometrics.sensors.fingerprint.aidl.AidlSession;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.io.FileDescriptor;
-import java.io.PrintWriter;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.atomic.AtomicLong;
-import java.util.function.Supplier;
-
-/**
- * Supports a single instance of the {@link android.hardware.biometrics.fingerprint.V2_1} or
- * its extended minor versions.
- */
-public class Fingerprint21 implements IHwBinder.DeathRecipient, ServiceProvider {
-
-    private static final String TAG = "Fingerprint21";
-    private static final int ENROLL_TIMEOUT_SEC = 60;
-
-    private boolean mTestHalEnabled;
-
-    final Context mContext;
-    @NonNull private final BiometricStateCallback mBiometricStateCallback;
-    @NonNull private final AuthenticationStateListeners mAuthenticationStateListeners;
-    private final ActivityTaskManager mActivityTaskManager;
-    @NonNull private final FingerprintSensorPropertiesInternal mSensorProperties;
-    private final BiometricScheduler<IBiometricsFingerprint, AidlSession> mScheduler;
-    private final Handler mHandler;
-    private final LockoutResetDispatcher mLockoutResetDispatcher;
-    private final LockoutFrameworkImpl mLockoutTracker;
-    private final BiometricTaskStackListener mTaskStackListener;
-    private final Supplier<IBiometricsFingerprint> mLazyDaemon;
-    private final Map<Integer, Long> mAuthenticatorIds;
-
-    @Nullable private IBiometricsFingerprint mDaemon;
-    @NonNull private final HalResultController mHalResultController;
-    @Nullable private IUdfpsOverlayController mUdfpsOverlayController;
-
-    // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-    @Nullable private ISidefpsController mSidefpsController;
-    @NonNull private final BiometricContext mBiometricContext;
-    @Nullable private AuthenticationStatsCollector mAuthenticationStatsCollector;
-    // for requests that do not use biometric prompt
-    @NonNull private final AtomicLong mRequestCounter = new AtomicLong(0);
-    private int mCurrentUserId = UserHandle.USER_NULL;
-    private final boolean mIsUdfps;
-    private final int mSensorId;
-    private final boolean mIsPowerbuttonFps;
-    private AidlSession mSession;
-
-    private final class BiometricTaskStackListener extends TaskStackListener {
-        @Override
-        public void onTaskStackChanged() {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AuthenticationClient)) {
-                    Slog.e(TAG, "Task stack changed for client: " + client);
-                    return;
-                }
-                if (Utils.isKeyguard(mContext, client.getOwnerString())
-                        || Utils.isSystem(mContext, client.getOwnerString())) {
-                    return; // Keyguard is always allowed
-                }
-
-                if (Utils.isBackground(client.getOwnerString())
-                        && !client.isAlreadyDone()) {
-                    Slog.e(TAG, "Stopping background authentication,"
-                            + " currentClient: " + client);
-                    mScheduler.cancelAuthenticationOrDetection(
-                            client.getToken(), client.getRequestId());
-                }
-            });
-        }
-    }
-
-    private final LockoutFrameworkImpl.LockoutResetCallback mLockoutResetCallback =
-            new LockoutFrameworkImpl.LockoutResetCallback() {
-                @Override
-                public void onLockoutReset(int userId) {
-                    mLockoutResetDispatcher.notifyLockoutResetCallbacks(mSensorProperties.sensorId);
-                }
-            };
-
-    private final UserSwitchObserver mUserSwitchObserver = new SynchronousUserSwitchObserver() {
-        @Override
-        public void onUserSwitching(int newUserId) {
-            scheduleInternalCleanup(newUserId, null /* callback */);
-        }
-    };
-
-    public static class HalResultController extends IBiometricsFingerprintClientCallback.Stub {
-
-        /**
-         * Interface to sends results to the HalResultController's owner.
-         */
-        public interface Callback {
-            /**
-             * Invoked when the HAL sends ERROR_HW_UNAVAILABLE.
-             */
-            void onHardwareUnavailable();
-        }
-
-        private final int mSensorId;
-        @NonNull private final Context mContext;
-        @NonNull final Handler mHandler;
-        @NonNull final BiometricScheduler<IBiometricsFingerprint, AidlSession> mScheduler;
-        @Nullable private Callback mCallback;
-
-        HalResultController(int sensorId, @NonNull Context context, @NonNull Handler handler,
-                @NonNull BiometricScheduler<IBiometricsFingerprint, AidlSession> scheduler) {
-            mSensorId = sensorId;
-            mContext = context;
-            mHandler = handler;
-            mScheduler = scheduler;
-        }
-
-        public void setCallback(@Nullable Callback callback) {
-            mCallback = callback;
-        }
-
-        @Override
-        public void onEnrollResult(long deviceId, int fingerId, int groupId, int remaining) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof FingerprintEnrollClient)) {
-                    Slog.e(TAG, "onEnrollResult for non-enroll client: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final int currentUserId = client.getTargetUserId();
-                final CharSequence name = FingerprintUtils.getLegacyInstance(mSensorId)
-                        .getUniqueName(mContext, currentUserId);
-                final Fingerprint fingerprint = new Fingerprint(name, groupId, fingerId, deviceId);
-
-                final FingerprintEnrollClient enrollClient = (FingerprintEnrollClient) client;
-                enrollClient.onEnrollResult(fingerprint, remaining);
-            });
-        }
-
-        @Override
-        public void onAcquired(long deviceId, int acquiredInfo, int vendorCode) {
-            onAcquired_2_2(deviceId, acquiredInfo, vendorCode);
-        }
-
-        @Override
-        public void onAcquired_2_2(long deviceId, int acquiredInfo, int vendorCode) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AcquisitionClient)) {
-                    Slog.e(TAG, "onAcquired for non-acquisition client: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final AcquisitionClient<?> acquisitionClient = (AcquisitionClient<?>) client;
-                acquisitionClient.onAcquired(acquiredInfo, vendorCode);
-            });
-        }
-
-        @Override
-        public void onAuthenticated(long deviceId, int fingerId, int groupId,
-                ArrayList<Byte> token) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AuthenticationConsumer)) {
-                    Slog.e(TAG, "onAuthenticated for non-authentication consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final AuthenticationConsumer authenticationConsumer =
-                        (AuthenticationConsumer) client;
-                final boolean authenticated = fingerId != 0;
-                final Fingerprint fp = new Fingerprint("", groupId, fingerId, deviceId);
-                authenticationConsumer.onAuthenticated(fp, authenticated, token);
-            });
-        }
-
-        @Override
-        public void onError(long deviceId, int error, int vendorCode) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                Slog.d(TAG, "handleError"
-                        + ", client: " + Utils.getClientName(client)
-                        + ", error: " + error
-                        + ", vendorCode: " + vendorCode);
-                if (!(client instanceof ErrorConsumer)) {
-                    Slog.e(TAG, "onError for non-error consumer: " + Utils.getClientName(client));
-                    return;
-                }
-
-                final ErrorConsumer errorConsumer = (ErrorConsumer) client;
-                errorConsumer.onError(error, vendorCode);
-
-                if (error == BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE) {
-                    Slog.e(TAG, "Got ERROR_HW_UNAVAILABLE");
-                    if (mCallback != null) {
-                        mCallback.onHardwareUnavailable();
-                    }
-                }
-            });
-        }
-
-        @Override
-        public void onRemoved(long deviceId, int fingerId, int groupId, int remaining) {
-            mHandler.post(() -> {
-                Slog.d(TAG, "Removed, fingerId: " + fingerId + ", remaining: " + remaining);
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof RemovalConsumer)) {
-                    Slog.e(TAG, "onRemoved for non-removal consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final Fingerprint fp = new Fingerprint("", groupId, fingerId, deviceId);
-                final RemovalConsumer removalConsumer = (RemovalConsumer) client;
-                removalConsumer.onRemoved(fp, remaining);
-            });
-        }
-
-        @Override
-        public void onEnumerate(long deviceId, int fingerId, int groupId, int remaining) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof EnumerateConsumer)) {
-                    Slog.e(TAG, "onEnumerate for non-enumerate consumer: "
-                            + Utils.getClientName(client));
-                    return;
-                }
-
-                final Fingerprint fp = new Fingerprint("", groupId, fingerId, deviceId);
-                final EnumerateConsumer enumerateConsumer = (EnumerateConsumer) client;
-                enumerateConsumer.onEnumerationResult(fp, remaining);
-            });
-        }
-    }
-
-    @VisibleForTesting
-    Fingerprint21(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @NonNull BiometricScheduler<IBiometricsFingerprint, AidlSession> scheduler,
-            @NonNull Handler handler,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull HalResultController controller,
-            @NonNull BiometricContext biometricContext) {
-        mContext = context;
-        mBiometricStateCallback = biometricStateCallback;
-        mAuthenticationStateListeners = authenticationStateListeners;
-        mBiometricContext = biometricContext;
-
-        mSensorProperties = sensorProps;
-        mSensorId = sensorProps.sensorId;
-        mIsUdfps = sensorProps.sensorType == FingerprintSensorProperties.TYPE_UDFPS_OPTICAL
-                || sensorProps.sensorType == FingerprintSensorProperties.TYPE_UDFPS_ULTRASONIC;
-        mIsPowerbuttonFps = sensorProps.sensorType == FingerprintSensorProperties.TYPE_POWER_BUTTON;
-
-        mScheduler = scheduler;
-        mHandler = handler;
-        mActivityTaskManager = ActivityTaskManager.getInstance();
-        mTaskStackListener = new BiometricTaskStackListener();
-        mAuthenticatorIds = Collections.synchronizedMap(new HashMap<>());
-        mLazyDaemon = Fingerprint21.this::getDaemon;
-        mLockoutResetDispatcher = lockoutResetDispatcher;
-        mLockoutTracker = new LockoutFrameworkImpl(context, mLockoutResetCallback);
-        mHalResultController = controller;
-        mHalResultController.setCallback(() -> {
-            mDaemon = null;
-            mCurrentUserId = UserHandle.USER_NULL;
-        });
-
-        AuthenticationStatsBroadcastReceiver mBroadcastReceiver =
-                new AuthenticationStatsBroadcastReceiver(
-                        mContext,
-                        BiometricsProtoEnums.MODALITY_FINGERPRINT,
-                        (AuthenticationStatsCollector collector) -> {
-                            Slog.d(TAG, "Initializing AuthenticationStatsCollector");
-                            mAuthenticationStatsCollector = collector;
-                        });
-
-        try {
-            ActivityManager.getService().registerUserSwitchObserver(mUserSwitchObserver, TAG);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Unable to register user switch observer");
-        }
-    }
-
-    public static Fingerprint21 newInstance(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @NonNull Handler handler,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull GestureAvailabilityDispatcher gestureAvailabilityDispatcher) {
-        final BiometricScheduler<IBiometricsFingerprint, AidlSession> scheduler =
-                new BiometricScheduler<>(
-                        BiometricScheduler.sensorTypeFromFingerprintProperties(sensorProps),
-                        gestureAvailabilityDispatcher);
-        final HalResultController controller = new HalResultController(sensorProps.sensorId,
-                context, handler, scheduler);
-        return new Fingerprint21(context, biometricStateCallback, authenticationStateListeners,
-                sensorProps, scheduler, handler, lockoutResetDispatcher, controller,
-                BiometricContext.getInstance(context));
-    }
-
-    @Override
-    public void serviceDied(long cookie) {
-        Slog.e(TAG, "HAL died");
-        mHandler.post(() -> {
-            PerformanceTracker.getInstanceForSensorId(mSensorProperties.sensorId)
-                    .incrementHALDeathCount();
-            mDaemon = null;
-            mCurrentUserId = UserHandle.USER_NULL;
-
-            final BaseClientMonitor client = mScheduler.getCurrentClient();
-            if (client instanceof ErrorConsumer) {
-                Slog.e(TAG, "Sending ERROR_HW_UNAVAILABLE for client: " + client);
-                final ErrorConsumer errorConsumer = (ErrorConsumer) client;
-                errorConsumer.onError(BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE,
-                        0 /* vendorCode */);
-
-                FrameworkStatsLog.write(FrameworkStatsLog.BIOMETRIC_SYSTEM_HEALTH_ISSUE_DETECTED,
-                        BiometricsProtoEnums.MODALITY_FINGERPRINT,
-                        BiometricsProtoEnums.ISSUE_HAL_DEATH,
-                        -1 /* sensorId */);
-            }
-
-            mScheduler.recordCrashState();
-            mScheduler.reset();
-        });
-    }
-
-    synchronized AidlSession getSession() {
-        if (mDaemon != null && mSession != null) {
-            return mSession;
-        } else {
-            return mSession = new AidlSession(this::getDaemon,
-                    mCurrentUserId, new AidlResponseHandler(mContext,
-                    mScheduler, mSensorId, mCurrentUserId, new LockoutCache(),
-                    mLockoutResetDispatcher, new AuthSessionCoordinator(), () -> {
-                        mDaemon = null;
-                        mCurrentUserId = UserHandle.USER_NULL;
-                    }));
-        }
-    }
-
-    @VisibleForTesting
-    synchronized IBiometricsFingerprint getDaemon() {
-        if (mTestHalEnabled) {
-            final TestHal testHal = new TestHal(mContext, mSensorId);
-            testHal.setNotify(mHalResultController);
-            return testHal;
-        }
-
-        if (mDaemon != null) {
-            return mDaemon;
-        }
-
-        Slog.d(TAG, "Daemon was null, reconnecting, current operation: "
-                + mScheduler.getCurrentClient());
-        try {
-            mDaemon = IBiometricsFingerprint.getService();
-        } catch (java.util.NoSuchElementException e) {
-            // Service doesn't exist or cannot be opened.
-            Slog.w(TAG, "NoSuchElementException", e);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to get fingerprint HAL", e);
-        }
-
-        if (mDaemon == null) {
-            Slog.w(TAG, "Fingerprint HAL not available");
-            return null;
-        }
-
-        mDaemon.asBinder().linkToDeath(this, 0 /* flags */);
-
-        // HAL ID for these HIDL versions are only used to determine if callbacks have been
-        // successfully set.
-        long halId = 0;
-        try {
-            halId = mDaemon.setNotify(mHalResultController);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to set callback for fingerprint HAL", e);
-            mDaemon = null;
-        }
-
-        Slog.d(TAG, "Fingerprint HAL ready, HAL ID: " + halId);
-        if (halId != 0) {
-            scheduleLoadAuthenticatorIds();
-            scheduleInternalCleanup(ActivityManager.getCurrentUser(), null /* callback */);
-        } else {
-            Slog.e(TAG, "Unable to set callback");
-            mDaemon = null;
-        }
-
-        return mDaemon;
-    }
-
-    @Nullable IUdfpsOverlayController getUdfpsOverlayController() {
-        return mUdfpsOverlayController;
-    }
-
-    private void scheduleLoadAuthenticatorIds() {
-        // Note that this can be performed on the scheduler (as opposed to being done immediately
-        // when the HAL is (re)loaded, since
-        // 1) If this is truly the first time it's being performed (e.g. system has just started),
-        //    this will be run very early and way before any applications need to generate keys.
-        // 2) If this is being performed to refresh the authenticatorIds (e.g. HAL crashed and has
-        //    just been reloaded), the framework already has a cache of the authenticatorIds. This
-        //    is safe because authenticatorIds only change when A) new template has been enrolled,
-        //    or B) all templates are removed.
-        mHandler.post(() -> {
-            for (UserInfo user : UserManager.get(mContext).getAliveUsers()) {
-                final int targetUserId = user.id;
-                if (!mAuthenticatorIds.containsKey(targetUserId)) {
-                    scheduleUpdateActiveUserWithoutHandler(targetUserId, true /* force */);
-                }
-            }
-        });
-    }
-
-    private void scheduleUpdateActiveUserWithoutHandler(int targetUserId) {
-        scheduleUpdateActiveUserWithoutHandler(targetUserId, false /* force */);
-    }
-
-    /**
-     * Schedules the {@link FingerprintUpdateActiveUserClient} without posting the work onto the
-     * handler. Many/most APIs are user-specific. However, the HAL requires explicit "setActiveUser"
-     * invocation prior to authenticate/enroll/etc. Thus, internally we usually want to schedule
-     * this operation on the same lambda/runnable as those operations so that the ordering is
-     * correct.
-     *
-     * @param targetUserId Switch to this user, and update their authenticatorId
-     * @param force Always retrieve the authenticatorId, even if we are already the targetUserId
-     */
-    private void scheduleUpdateActiveUserWithoutHandler(int targetUserId, boolean force) {
-        final boolean hasEnrolled =
-                !getEnrolledFingerprints(mSensorProperties.sensorId, targetUserId).isEmpty();
-        final FingerprintUpdateActiveUserClientLegacy client =
-                new FingerprintUpdateActiveUserClientLegacy(mContext, mLazyDaemon, targetUserId,
-                        mContext.getOpPackageName(), mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext,
-                        this::getCurrentUser, hasEnrolled, mAuthenticatorIds, force);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                if (success) {
-                    if (mCurrentUserId != targetUserId) {
-                        // Create new session with updated user ID
-                        mSession = null;
-                    }
-                    mCurrentUserId = targetUserId;
-                } else {
-                    Slog.w(TAG, "Failed to change user, still: " + mCurrentUserId);
-                }
-            }
-        });
-    }
-
-    private int getCurrentUser() {
-        return mCurrentUserId;
-    }
-
-    @Override
-    public boolean containsSensor(int sensorId) {
-        return mSensorProperties.sensorId == sensorId;
-    }
-
-    @Override
-    @NonNull
-    public List<FingerprintSensorPropertiesInternal> getSensorProperties() {
-        final List<FingerprintSensorPropertiesInternal> properties = new ArrayList<>();
-        properties.add(mSensorProperties);
-        return properties;
-    }
-
-    @Nullable
-    @Override
-    public FingerprintSensorPropertiesInternal getSensorProperties(int sensorId) {
-        return mSensorProperties;
-    }
-
-    @Override
-    public void scheduleResetLockout(int sensorId, int userId, @Nullable byte[] hardwareAuthToken) {
-        // Fingerprint2.1 keeps track of lockout in the framework. Let's just do it on the handler
-        // thread.
-        mHandler.post(() -> {
-            if (Flags.deHidl()) {
-                scheduleResetLockoutAidl(sensorId, userId, hardwareAuthToken);
-            } else {
-                scheduleResetLockoutHidl(sensorId, userId);
-            }
-        });
-    }
-
-    private void scheduleResetLockoutAidl(int sensorId, int userId,
-            @Nullable byte[] hardwareAuthToken) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintResetLockoutClient client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintResetLockoutClient(
-                        mContext, this::getSession, userId, mContext.getOpPackageName(),
-                        sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, hardwareAuthToken, mLockoutTracker,
-                        mLockoutResetDispatcher,
-                        Utils.getCurrentStrength(sensorId));
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleResetLockoutHidl(int sensorId, int userId) {
-        final FingerprintResetLockoutClient client = new FingerprintResetLockoutClient(mContext,
-                userId, mContext.getOpPackageName(), sensorId,
-                createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN,
-                        mAuthenticationStatsCollector),
-                mBiometricContext, mLockoutTracker);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    @Override
-    public void scheduleGenerateChallenge(int sensorId, int userId, @NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            if (Flags.deHidl()) {
-                scheduleGenerateChallengeAidl(userId, token, receiver, opPackageName);
-            } else {
-                scheduleGenerateChallengeHidl(userId, token, receiver, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleGenerateChallengeAidl(int userId, @NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintGenerateChallengeClient client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintGenerateChallengeClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), userId, opPackageName,
-                        mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleGenerateChallengeHidl(int userId, @NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName) {
-        final FingerprintGenerateChallengeClient client =
-                new FingerprintGenerateChallengeClient(mContext, mLazyDaemon, token,
-                        new ClientMonitorCallbackConverter(receiver), userId, opPackageName,
-                        mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    @Override
-    public void scheduleRevokeChallenge(int sensorId, int userId, @NonNull IBinder token,
-            @NonNull String opPackageName, long challenge) {
-        mHandler.post(() -> {
-            if (Flags.deHidl()) {
-                scheduleRevokeChallengeAidl(userId, token, opPackageName);
-            } else {
-                scheduleRevokeChallengeHidl(userId, token, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleRevokeChallengeAidl(int userId, @NonNull IBinder token,
-            @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintRevokeChallengeClient client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintRevokeChallengeClient(
-                        mContext, this::getSession,
-                        token, userId, opPackageName,
-                        mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, 0L);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    private void scheduleRevokeChallengeHidl(int userId, @NonNull IBinder token,
-            @NonNull String opPackageName) {
-        final FingerprintRevokeChallengeClient client = new FingerprintRevokeChallengeClient(
-                mContext, mLazyDaemon, token, userId, opPackageName,
-                mSensorProperties.sensorId,
-                createLogger(BiometricsProtoEnums.ACTION_UNKNOWN,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN,
-                        mAuthenticationStatsCollector),
-                mBiometricContext);
-        mScheduler.scheduleClientMonitor(client);
-    }
-
-    @Override
-    public long scheduleEnroll(int sensorId, @NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName,
-            @FingerprintManager.EnrollReason int enrollReason,
-            @NonNull FingerprintEnrollOptions options) {
-        final long id = mRequestCounter.incrementAndGet();
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleEnrollAidl(token, hardwareAuthToken, userId, receiver,
-                        opPackageName, enrollReason, id, options);
-            } else {
-                scheduleEnrollHidl(token, hardwareAuthToken, userId, receiver,
-                        opPackageName, enrollReason, id, options);
-            }
-        });
-        return id;
-    }
-
-    private void scheduleEnrollHidl(@NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName,
-            @FingerprintManager.EnrollReason int enrollReason, long id,
-            @NonNull FingerprintEnrollOptions options) {
-        final FingerprintEnrollClient client = new FingerprintEnrollClient(mContext,
-                mLazyDaemon, token, id, new ClientMonitorCallbackConverter(receiver),
-                userId, hardwareAuthToken, opPackageName,
-                FingerprintUtils.getLegacyInstance(mSensorId), ENROLL_TIMEOUT_SEC,
-                mSensorProperties.sensorId,
-                createLogger(BiometricsProtoEnums.ACTION_ENROLL,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, mUdfpsOverlayController,
-                // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-                mSidefpsController,
-                mAuthenticationStateListeners, enrollReason, options);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                mBiometricStateCallback.onClientStarted(clientMonitor);
-            }
-
-            @Override
-            public void onBiometricAction(int action) {
-                mBiometricStateCallback.onBiometricAction(action);
-            }
-
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                mBiometricStateCallback.onClientFinished(clientMonitor, success);
-                if (success) {
-                    // Update authenticatorIds
-                    scheduleUpdateActiveUserWithoutHandler(clientMonitor.getTargetUserId(),
-                            true /* force */);
-                }
-            }
-        });
-    }
-
-    private void scheduleEnrollAidl(@NonNull IBinder token,
-            @NonNull byte[] hardwareAuthToken, int userId,
-            @NonNull IFingerprintServiceReceiver receiver, @NonNull String opPackageName,
-            @FingerprintManager.EnrollReason int enrollReason, long id,
-            @NonNull FingerprintEnrollOptions options) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintEnrollClient
-                client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintEnrollClient(
-                        mContext,
-                        this::getSession, token, id,
-                        new ClientMonitorCallbackConverter(receiver),
-                        userId, hardwareAuthToken, opPackageName,
-                        FingerprintUtils.getLegacyInstance(mSensorId),
-                        mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_ENROLL,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, null /* sensorProps */,
-                        mUdfpsOverlayController,
-                        // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-                        mSidefpsController,
-                        mAuthenticationStateListeners,
-                        mContext.getResources().getInteger(
-                                com.android.internal.R.integer.config_fingerprintMaxTemplatesPerUser),
-                        enrollReason, options);
-        mScheduler.scheduleClientMonitor(client, new ClientMonitorCallback() {
-            @Override
-            public void onClientStarted(@NonNull BaseClientMonitor clientMonitor) {
-                mBiometricStateCallback.onClientStarted(clientMonitor);
-            }
-
-            @Override
-            public void onBiometricAction(int action) {
-                mBiometricStateCallback.onBiometricAction(action);
-            }
-
-            @Override
-            public void onClientFinished(@NonNull BaseClientMonitor clientMonitor,
-                    boolean success) {
-                mBiometricStateCallback.onClientFinished(clientMonitor, success);
-                if (success) {
-                    // Update authenticatorIds
-                    scheduleUpdateActiveUserWithoutHandler(clientMonitor.getTargetUserId(),
-                            true /* force */);
-                }
-            }
-        });
-    }
-
-    @Override
-    public void cancelEnrollment(int sensorId, @NonNull IBinder token, long requestId) {
-        mHandler.post(() -> mScheduler.cancelEnrollment(token, requestId));
-    }
-
-    @Override
-    public long scheduleFingerDetect(@NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            int statsClient) {
-        final long id = mRequestCounter.incrementAndGet();
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(options.getUserId());
-
-            final boolean isStrongBiometric = Utils.isStrongBiometric(mSensorProperties.sensorId);
-
-            if (Flags.deHidl()) {
-                scheduleFingerDetectAidl(token, listener, options, statsClient, id,
-                        isStrongBiometric);
-            } else {
-                scheduleFingerDetectHidl(token, listener, options, statsClient, id,
-                        isStrongBiometric);
-            }
-        });
-
-        return id;
-    }
-
-    private void scheduleFingerDetectHidl(@NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            int statsClient, long id, boolean isStrongBiometric) {
-        final FingerprintDetectClient client = new FingerprintDetectClient(mContext,
-                mLazyDaemon, token, id, listener, options,
-                createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                        mAuthenticationStatsCollector),
-                mBiometricContext, mUdfpsOverlayController, isStrongBiometric);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    private void scheduleFingerDetectAidl(@NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            int statsClient, long id, boolean isStrongBiometric) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintDetectClient
-                client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintDetectClient(
-                        mContext,
-                        this::getSession, token, id, listener, options,
-                        createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, mUdfpsOverlayController, isStrongBiometric);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    @Override
-    public void scheduleAuthenticate(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            long requestId, boolean restricted, int statsClient,
-            boolean allowBackgroundAuthentication) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(options.getUserId());
-
-            final boolean isStrongBiometric = Utils.isStrongBiometric(mSensorProperties.sensorId);
-
-            if (Flags.deHidl()) {
-                scheduleAuthenticateAidl(token, operationId, cookie, listener, options, requestId,
-                        restricted, statsClient, allowBackgroundAuthentication, isStrongBiometric);
-            } else {
-                scheduleAuthenticateHidl(token, operationId, cookie, listener, options, requestId,
-                        restricted, statsClient, allowBackgroundAuthentication, isStrongBiometric);
-            }
-        });
-    }
-
-    private void scheduleAuthenticateAidl(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            long requestId, boolean restricted, int statsClient,
-            boolean allowBackgroundAuthentication, boolean isStrongBiometric) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintAuthenticationClient
-                client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintAuthenticationClient(
-                        mContext, this::getSession, token, requestId, listener, operationId,
-                        restricted, options, cookie, false /* requireConfirmation */,
-                        createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext, isStrongBiometric,
-                        mTaskStackListener,
-                        mUdfpsOverlayController, mSidefpsController,
-                        mAuthenticationStateListeners,
-                        allowBackgroundAuthentication, mSensorProperties, mHandler,
-                        Utils.getCurrentStrength(mSensorId), null /* clock */, mLockoutTracker);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    private void scheduleAuthenticateHidl(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            long requestId, boolean restricted, int statsClient,
-            boolean allowBackgroundAuthentication, boolean isStrongBiometric) {
-        final FingerprintAuthenticationClient client = new FingerprintAuthenticationClient(
-                mContext, mLazyDaemon, token, requestId, listener, operationId,
-                restricted, options, cookie, false /* requireConfirmation */,
-                createLogger(BiometricsProtoEnums.ACTION_AUTHENTICATE, statsClient,
-                        mAuthenticationStatsCollector),
-                mBiometricContext, isStrongBiometric,
-                mTaskStackListener, mLockoutTracker,
-                mUdfpsOverlayController, mSidefpsController,
-                mAuthenticationStateListeners,
-                allowBackgroundAuthentication, mSensorProperties,
-                Utils.getCurrentStrength(mSensorId));
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    @Override
-    public long scheduleAuthenticate(@NonNull IBinder token, long operationId,
-            int cookie, @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options, boolean restricted, int statsClient,
-            boolean allowBackgroundAuthentication) {
-        final long id = mRequestCounter.incrementAndGet();
-
-        scheduleAuthenticate(token, operationId, cookie, listener,
-                options, id, restricted, statsClient, allowBackgroundAuthentication);
-
-        return id;
-    }
-
-    @Override
-    public void startPreparedClient(int sensorId, int cookie) {
-        mHandler.post(() -> mScheduler.startPreparedClient(cookie));
-    }
-
-    @Override
-    public void cancelAuthentication(int sensorId, @NonNull IBinder token, long requestId) {
-        Slog.d(TAG, "cancelAuthentication, sensorId: " + sensorId);
-        mHandler.post(() -> mScheduler.cancelAuthenticationOrDetection(token, requestId));
-    }
-
-    @Override
-    public void scheduleRemove(int sensorId, @NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, int fingerId, int userId,
-            @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleRemoveAidl(token, receiver, fingerId, userId, opPackageName);
-            } else {
-                scheduleRemoveHidl(token, receiver, fingerId, userId, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleRemoveHidl(@NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, int fingerId, int userId,
-            @NonNull String opPackageName) {
-        final FingerprintRemovalClient client = new FingerprintRemovalClient(mContext,
-                mLazyDaemon, token, new ClientMonitorCallbackConverter(receiver), fingerId,
-                userId, opPackageName, FingerprintUtils.getLegacyInstance(mSensorId),
-                mSensorProperties.sensorId,
-                createLogger(BiometricsProtoEnums.ACTION_REMOVE,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext, mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    private void scheduleRemoveAidl(@NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, int fingerId, int userId,
-            @NonNull String opPackageName) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintRemovalClient client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintRemovalClient(
-                        mContext, this::getSession, token,
-                        new ClientMonitorCallbackConverter(receiver), new int[]{fingerId}, userId,
-                        opPackageName, FingerprintUtils.getLegacyInstance(mSensorId), mSensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_REMOVE,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                        mBiometricContext, mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, mBiometricStateCallback);
-    }
-
-    @Override
-    public void scheduleRemoveAll(int sensorId, @NonNull IBinder token,
-            @NonNull IFingerprintServiceReceiver receiver, int userId,
-            @NonNull String opPackageName) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            // For IBiometricsFingerprint@2.1, remove(0) means remove all enrollments
-            if (Flags.deHidl()) {
-                scheduleRemoveAidl(token, receiver, 0 /* fingerId */, userId, opPackageName);
-            } else {
-                scheduleRemoveHidl(token, receiver, 0 /* fingerId */, userId, opPackageName);
-            }
-        });
-    }
-
-    private void scheduleInternalCleanup(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        mHandler.post(() -> {
-            scheduleUpdateActiveUserWithoutHandler(userId);
-
-            if (Flags.deHidl()) {
-                scheduleInternalCleanupAidl(userId, callback);
-            } else {
-                scheduleInternalCleanupHidl(userId, callback);
-            }
-        });
-    }
-
-    private void scheduleInternalCleanupHidl(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        final FingerprintInternalCleanupClient client = new FingerprintInternalCleanupClient(
-                mContext, mLazyDaemon, userId, mContext.getOpPackageName(),
-                mSensorProperties.sensorId,
-                createLogger(BiometricsProtoEnums.ACTION_ENUMERATE,
-                        BiometricsProtoEnums.CLIENT_UNKNOWN, mAuthenticationStatsCollector),
-                mBiometricContext,
-                FingerprintUtils.getLegacyInstance(mSensorId), mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, callback);
-    }
-
-    private void scheduleInternalCleanupAidl(int userId,
-            @Nullable ClientMonitorCallback callback) {
-        final com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintInternalCleanupClient
-                client =
-                new com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintInternalCleanupClient(
-                        mContext, this::getSession, userId, mContext.getOpPackageName(),
-                        mSensorProperties.sensorId,
-                        createLogger(BiometricsProtoEnums.ACTION_ENUMERATE,
-                                BiometricsProtoEnums.CLIENT_UNKNOWN,
-                                mAuthenticationStatsCollector),
-                        mBiometricContext,
-                        FingerprintUtils.getLegacyInstance(mSensorId), mAuthenticatorIds);
-        mScheduler.scheduleClientMonitor(client, callback);
-    }
-
-    @Override
-    public void scheduleInternalCleanup(int sensorId, int userId,
-            @Nullable ClientMonitorCallback callback) {
-        scheduleInternalCleanup(userId, new ClientMonitorCompositeCallback(callback,
-                mBiometricStateCallback));
-    }
-
-    @Override
-    public void scheduleInternalCleanup(int sensorId, int userId,
-            @Nullable ClientMonitorCallback callback, boolean favorHalEnrollments) {
-        scheduleInternalCleanup(userId, new ClientMonitorCompositeCallback(callback,
-                mBiometricStateCallback));
-    }
-
-    private BiometricLogger createLogger(int statsAction, int statsClient,
-            AuthenticationStatsCollector authenticationStatsCollector) {
-        return new BiometricLogger(mContext, BiometricsProtoEnums.MODALITY_FINGERPRINT,
-                statsAction, statsClient, authenticationStatsCollector);
-    }
-
-    @Override
-    public boolean isHardwareDetected(int sensorId) {
-        return getDaemon() != null;
-    }
-
-    @Override
-    public void rename(int sensorId, int fingerId, int userId, @NonNull String name) {
-        mHandler.post(() -> {
-            FingerprintUtils.getLegacyInstance(mSensorId)
-                    .renameBiometricForUser(mContext, userId, fingerId, name);
-        });
-    }
-
-    @Override
-    @NonNull
-    public List<Fingerprint> getEnrolledFingerprints(int sensorId, int userId) {
-        return FingerprintUtils.getLegacyInstance(mSensorId).getBiometricsForUser(mContext, userId);
-    }
-
-    @Override
-    public boolean hasEnrollments(int sensorId, int userId) {
-        return !getEnrolledFingerprints(sensorId, userId).isEmpty();
-    }
-
-    @Override
-    @LockoutTracker.LockoutMode public int getLockoutModeForUser(int sensorId, int userId) {
-        return mLockoutTracker.getLockoutModeForUser(userId);
-    }
-
-    @Override
-    public long getAuthenticatorId(int sensorId, int userId) {
-        return mAuthenticatorIds.getOrDefault(userId, 0L);
-    }
-
-    @Override
-    public void onPointerDown(long requestId, int sensorId, PointerContext pc) {
-        mScheduler.getCurrentClientIfMatches(requestId, (client) -> {
-            if (!(client instanceof Udfps)) {
-                Slog.w(TAG, "onFingerDown received during client: " + client);
-                return;
-            }
-            ((Udfps) client).onPointerDown(pc);
-        });
-    }
-
-    @Override
-    public void onPointerUp(long requestId, int sensorId, PointerContext pc) {
-        mScheduler.getCurrentClientIfMatches(requestId, (client) -> {
-            if (!(client instanceof Udfps)) {
-                Slog.w(TAG, "onFingerDown received during client: " + client);
-                return;
-            }
-            ((Udfps) client).onPointerUp(pc);
-        });
-    }
-
-    @Override
-    public void onUdfpsUiEvent(@FingerprintManager.UdfpsUiEvent int event, long requestId,
-            int sensorId) {
-        mScheduler.getCurrentClientIfMatches(requestId, (client) -> {
-            if (!(client instanceof Udfps)) {
-                Slog.w(TAG, "onUdfpsUiEvent received during client: " + client);
-                return;
-            }
-            ((Udfps) client).onUdfpsUiEvent(event);
-        });
-    }
-
-    @Override
-    public void onPowerPressed() {
-        Slog.e(TAG, "onPowerPressed not supported for HIDL clients");
-    }
-
-    @Override
-    public void setUdfpsOverlayController(@NonNull IUdfpsOverlayController controller) {
-        mUdfpsOverlayController = controller;
-    }
-
-    // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-    @Override
-    public void setSidefpsController(@NonNull ISidefpsController controller) {
-        mSidefpsController = controller;
-    }
-
-    @Override
-    public void dumpProtoState(int sensorId, @NonNull ProtoOutputStream proto,
-            boolean clearSchedulerBuffer) {
-        final long sensorToken = proto.start(SensorServiceStateProto.SENSOR_STATES);
-
-        proto.write(SensorStateProto.SENSOR_ID, mSensorProperties.sensorId);
-        proto.write(SensorStateProto.MODALITY, SensorStateProto.FINGERPRINT);
-        if (mSensorProperties.isAnyUdfpsType()) {
-            proto.write(SensorStateProto.MODALITY_FLAGS, SensorStateProto.FINGERPRINT_UDFPS);
-        }
-        proto.write(SensorStateProto.CURRENT_STRENGTH,
-                Utils.getCurrentStrength(mSensorProperties.sensorId));
-        proto.write(SensorStateProto.SCHEDULER, mScheduler.dumpProtoState(clearSchedulerBuffer));
-
-        for (UserInfo user : UserManager.get(mContext).getUsers()) {
-            final int userId = user.getUserHandle().getIdentifier();
-
-            final long userToken = proto.start(SensorStateProto.USER_STATES);
-            proto.write(UserStateProto.USER_ID, userId);
-            proto.write(UserStateProto.NUM_ENROLLED, FingerprintUtils.getLegacyInstance(mSensorId)
-                    .getBiometricsForUser(mContext, userId).size());
-            proto.end(userToken);
-        }
-
-        proto.write(SensorStateProto.RESET_LOCKOUT_REQUIRES_HARDWARE_AUTH_TOKEN,
-                mSensorProperties.resetLockoutRequiresHardwareAuthToken);
-        proto.write(SensorStateProto.RESET_LOCKOUT_REQUIRES_CHALLENGE,
-                mSensorProperties.resetLockoutRequiresChallenge);
-
-        proto.end(sensorToken);
-    }
-
-    @Override
-    public void dumpProtoMetrics(int sensorId, FileDescriptor fd) {
-        PerformanceTracker tracker =
-                PerformanceTracker.getInstanceForSensorId(mSensorProperties.sensorId);
-
-        final ProtoOutputStream proto = new ProtoOutputStream(fd);
-        for (UserInfo user : UserManager.get(mContext).getUsers()) {
-            final int userId = user.getUserHandle().getIdentifier();
-
-            final long userToken = proto.start(FingerprintServiceDumpProto.USERS);
-
-            proto.write(FingerprintUserStatsProto.USER_ID, userId);
-            proto.write(FingerprintUserStatsProto.NUM_FINGERPRINTS,
-                    FingerprintUtils.getLegacyInstance(mSensorId)
-                            .getBiometricsForUser(mContext, userId).size());
-
-            // Normal fingerprint authentications (e.g. lockscreen)
-            long countsToken = proto.start(FingerprintUserStatsProto.NORMAL);
-            proto.write(PerformanceStatsProto.ACCEPT, tracker.getAcceptForUser(userId));
-            proto.write(PerformanceStatsProto.REJECT, tracker.getRejectForUser(userId));
-            proto.write(PerformanceStatsProto.ACQUIRE, tracker.getAcquireForUser(userId));
-            proto.write(PerformanceStatsProto.LOCKOUT, tracker.getTimedLockoutForUser(userId));
-            proto.write(PerformanceStatsProto.PERMANENT_LOCKOUT,
-                    tracker.getPermanentLockoutForUser(userId));
-            proto.end(countsToken);
-
-            // Statistics about secure fingerprint transactions (e.g. to unlock password
-            // storage, make secure purchases, etc.)
-            countsToken = proto.start(FingerprintUserStatsProto.CRYPTO);
-            proto.write(PerformanceStatsProto.ACCEPT, tracker.getAcceptCryptoForUser(userId));
-            proto.write(PerformanceStatsProto.REJECT, tracker.getRejectCryptoForUser(userId));
-            proto.write(PerformanceStatsProto.ACQUIRE, tracker.getAcquireCryptoForUser(userId));
-            proto.write(PerformanceStatsProto.LOCKOUT, 0); // meaningless for crypto
-            proto.write(PerformanceStatsProto.PERMANENT_LOCKOUT, 0); // meaningless for crypto
-            proto.end(countsToken);
-
-            proto.end(userToken);
-        }
-        proto.flush();
-        tracker.clear();
-    }
-
-    @Override
-    public void scheduleInvalidateAuthenticatorId(int sensorId, int userId,
-            @NonNull IInvalidationCallback callback) {
-        // TODO (b/179101888): Remove this temporary workaround.
-        try {
-            callback.onCompleted();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to complete InvalidateAuthenticatorId");
-        }
-    }
-
-    @Override
-    public void dumpInternal(int sensorId, @NonNull PrintWriter pw) {
-        PerformanceTracker performanceTracker =
-                PerformanceTracker.getInstanceForSensorId(mSensorProperties.sensorId);
-
-        JSONObject dump = new JSONObject();
-        try {
-            dump.put("service", TAG);
-            dump.put("isUdfps", mIsUdfps);
-            dump.put("isPowerbuttonFps", mIsPowerbuttonFps);
-
-            JSONArray sets = new JSONArray();
-            for (UserInfo user : UserManager.get(mContext).getUsers()) {
-                final int userId = user.getUserHandle().getIdentifier();
-                final int N = FingerprintUtils.getLegacyInstance(mSensorId)
-                        .getBiometricsForUser(mContext, userId).size();
-                JSONObject set = new JSONObject();
-                set.put("id", userId);
-                set.put("count", N);
-                set.put("accept", performanceTracker.getAcceptForUser(userId));
-                set.put("reject", performanceTracker.getRejectForUser(userId));
-                set.put("acquire", performanceTracker.getAcquireForUser(userId));
-                set.put("lockout", performanceTracker.getTimedLockoutForUser(userId));
-                set.put("permanentLockout", performanceTracker.getPermanentLockoutForUser(userId));
-                // cryptoStats measures statistics about secure fingerprint transactions
-                // (e.g. to unlock password storage, make secure purchases, etc.)
-                set.put("acceptCrypto", performanceTracker.getAcceptCryptoForUser(userId));
-                set.put("rejectCrypto", performanceTracker.getRejectCryptoForUser(userId));
-                set.put("acquireCrypto", performanceTracker.getAcquireCryptoForUser(userId));
-                sets.put(set);
-            }
-
-            dump.put("prints", sets);
-        } catch (JSONException e) {
-            Slog.e(TAG, "dump formatting failure", e);
-        }
-        pw.println(dump);
-        pw.println("HAL deaths since last reboot: " + performanceTracker.getHALDeathCount());
-        mScheduler.dump(pw);
-    }
-
-    void setTestHalEnabled(boolean enabled) {
-        mTestHalEnabled = enabled;
-    }
-
-    @NonNull
-    @Override
-    public ITestSession createTestSession(int sensorId, @NonNull ITestSessionCallback callback,
-            @NonNull String opPackageName) {
-        return new BiometricTestSessionImpl(mContext, mSensorProperties.sensorId, callback,
-                mBiometricStateCallback, this, mHalResultController);
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21UdfpsMock.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21UdfpsMock.java
deleted file mode 100644
index f857946..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21UdfpsMock.java
+++ /dev/null
@@ -1,573 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.app.trust.TrustManager;
-import android.content.ContentResolver;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.PointerContext;
-import android.hardware.fingerprint.FingerprintAuthenticateOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.FingerprintManager.AuthenticationCallback;
-import android.hardware.fingerprint.FingerprintManager.AuthenticationResult;
-import android.hardware.fingerprint.FingerprintSensorProperties;
-import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
-import android.hardware.fingerprint.IFingerprintServiceReceiver;
-import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.Looper;
-import android.os.RemoteException;
-import android.os.UserHandle;
-import android.provider.Settings;
-import android.util.Slog;
-import android.util.SparseBooleanArray;
-
-import com.android.internal.R;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.sensors.AuthenticationConsumer;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.BiometricScheduler;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.LockoutResetDispatcher;
-import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Random;
-
-/**
- * A mockable/testable provider of the {@link android.hardware.biometrics.fingerprint.V2_3} HIDL
- * interface. This class is intended simulate UDFPS logic for devices that do not have an actual
- * fingerprint@2.3 HAL (where UDFPS starts to become supported)
- *
- * UDFPS "accept" can only happen within a set amount of time after a sensor authentication. This is
- * specified by {@link MockHalResultController#AUTH_VALIDITY_MS}. Touches after this duration will
- * be treated as "reject".
- *
- * This class provides framework logic to emulate, for testing only, the UDFPS functionalies below:
- *
- * 1) IF either A) the caller is keyguard, and the device is not in a trusted state (authenticated
- *    via biometric sensor or unlocked with a trust agent {@see android.app.trust.TrustManager}, OR
- *    B) the caller is not keyguard, and regardless of trusted state, AND (following applies to both
- *    (A) and (B) above) {@link FingerprintManager#onFingerDown(int, int, float, float)} is
- *    received, this class will respond with {@link AuthenticationCallback#onAuthenticationFailed()}
- *    after a tunable flat_time + variance_time.
- *
- *    In the case above (1), callers must not receive a successful authentication event here because
- *    the sensor has not actually been authenticated.
- *
- * 2) IF A) the caller is keyguard and the device is not in a trusted state, OR B) the caller is not
- *    keyguard and regardless of trusted state, AND (following applies to both (A) and (B)) the
- *    sensor is touched and the fingerprint is accepted by the HAL, and then
- *    {@link FingerprintManager#onFingerDown(int, int, float, float)} is received, this class will
- *    respond with {@link AuthenticationCallback#onAuthenticationSucceeded(AuthenticationResult)}
- *    after a tunable flat_time + variance_time. Note that the authentication callback from the
- *    sensor is held until {@link FingerprintManager#onFingerDown(int, int, float, float)} is
- *    invoked.
- *
- *    In the case above (2), callers can receive a successful authentication callback because the
- *    real sensor was authenticated. Note that even though the real sensor was touched, keyguard
- *    fingerprint authentication does not put keyguard into a trusted state because the
- *    authentication callback is held until onFingerDown was invoked. This allows callers such as
- *    keyguard to simulate a realistic path.
- *
- * 3) IF the caller is keyguard AND the device in a trusted state and then
- *    {@link FingerprintManager#onFingerDown(int, int, float, float)} is received, this class will
- *    respond with {@link AuthenticationCallback#onAuthenticationSucceeded(AuthenticationResult)}
- *    after a tunable flat_time + variance time.
- *
- *    In the case above (3), since the device is already unlockable via trust agent, it's fine to
- *    simulate the successful auth path. Non-keyguard clients will fall into either (1) or (2)
- *    above.
- *
- *  This class currently does not simulate false rejection. Conversely, this class relies on the
- *  real hardware sensor so does not affect false acceptance.
- */
-@SuppressWarnings("deprecation")
-public class Fingerprint21UdfpsMock extends Fingerprint21 implements TrustManager.TrustListener {
-
-    private static final String TAG = "Fingerprint21UdfpsMock";
-
-    // Secure setting integer. If true, the system will load this class to enable udfps testing.
-    public static final String CONFIG_ENABLE_TEST_UDFPS =
-            "com.android.server.biometrics.sensors.fingerprint.test_udfps.enable";
-    // Secure setting integer. A fixed duration intended to simulate something like the duration
-    // required for image capture.
-    private static final String CONFIG_AUTH_DELAY_PT1 =
-            "com.android.server.biometrics.sensors.fingerprint.test_udfps.auth_delay_pt1";
-    // Secure setting integer. A fixed duration intended to simulate something like the duration
-    // required for template matching to complete.
-    private static final String CONFIG_AUTH_DELAY_PT2 =
-            "com.android.server.biometrics.sensors.fingerprint.test_udfps.auth_delay_pt2";
-    // Secure setting integer. A random value between [-randomness, randomness] will be added to the
-    // capture delay above for each accept/reject.
-    private static final String CONFIG_AUTH_DELAY_RANDOMNESS =
-            "com.android.server.biometrics.sensors.fingerprint.test_udfps.auth_delay_randomness";
-
-    private static final int DEFAULT_AUTH_DELAY_PT1_MS = 300;
-    private static final int DEFAULT_AUTH_DELAY_PT2_MS = 400;
-    private static final int DEFAULT_AUTH_DELAY_RANDOMNESS_MS = 100;
-
-    @NonNull private final TestableBiometricScheduler mScheduler;
-    @NonNull private final Handler mHandler;
-    @NonNull private final FingerprintSensorPropertiesInternal mSensorProperties;
-    @NonNull private final MockHalResultController mMockHalResultController;
-    @NonNull private final TrustManager mTrustManager;
-    @NonNull private final SparseBooleanArray mUserHasTrust;
-    @NonNull private final Random mRandom;
-    @NonNull private final FakeRejectRunnable mFakeRejectRunnable;
-    @NonNull private final FakeAcceptRunnable mFakeAcceptRunnable;
-    @NonNull private final RestartAuthRunnable mRestartAuthRunnable;
-
-    private static class TestableBiometricScheduler extends BiometricScheduler {
-        @NonNull private Fingerprint21UdfpsMock mFingerprint21;
-
-        TestableBiometricScheduler(
-                @Nullable GestureAvailabilityDispatcher gestureAvailabilityDispatcher) {
-            super(BiometricScheduler.SENSOR_TYPE_FP_OTHER, gestureAvailabilityDispatcher);
-        }
-
-        void init(@NonNull Fingerprint21UdfpsMock fingerprint21) {
-            mFingerprint21 = fingerprint21;
-        }
-    }
-
-    /**
-     * All of the mocking/testing should happen in here. This way we don't need to modify the
-     * {@link BaseClientMonitor} implementations and can run the
-     * real path there.
-     */
-    private static class MockHalResultController extends HalResultController {
-
-        // Duration for which a sensor authentication can be treated as UDFPS success.
-        private static final int AUTH_VALIDITY_MS = 10 * 1000; // 10 seconds
-
-        static class LastAuthArgs {
-            @NonNull final AuthenticationConsumer lastAuthenticatedClient;
-            final long deviceId;
-            final int fingerId;
-            final int groupId;
-            @Nullable final ArrayList<Byte> token;
-
-            LastAuthArgs(@NonNull AuthenticationConsumer authenticationConsumer, long deviceId,
-                    int fingerId, int groupId, @Nullable ArrayList<Byte> token) {
-                lastAuthenticatedClient = authenticationConsumer;
-                this.deviceId = deviceId;
-                this.fingerId = fingerId;
-                this.groupId = groupId;
-                if (token == null) {
-                    this.token = null;
-                } else {
-                    // Store a copy so the owner can be GC'd
-                    this.token = new ArrayList<>(token);
-                }
-            }
-        }
-
-        // Initialized after the constructor, but before it's ever used.
-        @NonNull private RestartAuthRunnable mRestartAuthRunnable;
-        @NonNull private Fingerprint21UdfpsMock mFingerprint21;
-        @Nullable private LastAuthArgs mLastAuthArgs;
-
-        MockHalResultController(int sensorId, @NonNull Context context, @NonNull Handler handler,
-                @NonNull BiometricScheduler scheduler) {
-            super(sensorId, context, handler, scheduler);
-        }
-
-        void init(@NonNull RestartAuthRunnable restartAuthRunnable,
-                @NonNull Fingerprint21UdfpsMock fingerprint21) {
-            mRestartAuthRunnable = restartAuthRunnable;
-            mFingerprint21 = fingerprint21;
-        }
-
-        @Nullable AuthenticationConsumer getLastAuthenticatedClient() {
-            return mLastAuthArgs != null ? mLastAuthArgs.lastAuthenticatedClient : null;
-        }
-
-        /**
-         * Intercepts the HAL authentication and holds it until the UDFPS simulation decides
-         * that authentication finished.
-         */
-        @Override
-        public void onAuthenticated(long deviceId, int fingerId, int groupId,
-                ArrayList<Byte> token) {
-            mHandler.post(() -> {
-                final BaseClientMonitor client = mScheduler.getCurrentClient();
-                if (!(client instanceof AuthenticationConsumer)) {
-                    Slog.e(TAG, "Non authentication consumer: " + client);
-                    return;
-                }
-
-                final boolean accepted = fingerId != 0;
-                if (accepted) {
-                    mFingerprint21.setDebugMessage("Finger accepted");
-                } else {
-                    mFingerprint21.setDebugMessage("Finger rejected");
-                }
-
-                final AuthenticationConsumer authenticationConsumer =
-                        (AuthenticationConsumer) client;
-                mLastAuthArgs = new LastAuthArgs(authenticationConsumer, deviceId, fingerId,
-                        groupId, token);
-
-                // Remove any existing restart runnbables since auth just started, and put a new
-                // one on the queue.
-                mHandler.removeCallbacks(mRestartAuthRunnable);
-                mRestartAuthRunnable.setLastAuthReference(authenticationConsumer);
-                mHandler.postDelayed(mRestartAuthRunnable, AUTH_VALIDITY_MS);
-            });
-        }
-
-        /**
-         * Calls through to the real interface and notifies clients of accept/reject.
-         */
-        void sendAuthenticated(long deviceId, int fingerId, int groupId,
-                ArrayList<Byte> token) {
-            Slog.d(TAG, "sendAuthenticated: " + (fingerId != 0));
-            mFingerprint21.setDebugMessage("Udfps match: " + (fingerId != 0));
-            super.onAuthenticated(deviceId, fingerId, groupId, token);
-        }
-    }
-
-    public static Fingerprint21UdfpsMock newInstance(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull GestureAvailabilityDispatcher gestureAvailabilityDispatcher,
-            @NonNull BiometricContext biometricContext) {
-        Slog.d(TAG, "Creating Fingerprint23Mock!");
-
-        final Handler handler = new Handler(Looper.getMainLooper());
-        final TestableBiometricScheduler scheduler =
-                new TestableBiometricScheduler(gestureAvailabilityDispatcher);
-        final MockHalResultController controller =
-                new MockHalResultController(sensorProps.sensorId, context, handler, scheduler);
-        return new Fingerprint21UdfpsMock(context, biometricStateCallback,
-                authenticationStateListeners, sensorProps, scheduler, handler,
-                lockoutResetDispatcher, controller, biometricContext);
-    }
-
-    private static abstract class FakeFingerRunnable implements Runnable {
-        private long mFingerDownTime;
-        private int mCaptureDuration;
-
-        /**
-         * @param fingerDownTime System time when onFingerDown occurred
-         * @param captureDuration Duration that the finger needs to be down for
-         */
-        void setSimulationTime(long fingerDownTime, int captureDuration) {
-            mFingerDownTime = fingerDownTime;
-            mCaptureDuration = captureDuration;
-        }
-
-        @SuppressWarnings("BooleanMethodIsAlwaysInverted")
-        boolean isImageCaptureComplete() {
-            return System.currentTimeMillis() - mFingerDownTime > mCaptureDuration;
-        }
-    }
-
-    private final class FakeRejectRunnable extends FakeFingerRunnable {
-        @Override
-        public void run() {
-            mMockHalResultController.sendAuthenticated(0, 0, 0, null);
-        }
-    }
-
-    private final class FakeAcceptRunnable extends FakeFingerRunnable {
-        @Override
-        public void run() {
-            if (mMockHalResultController.mLastAuthArgs == null) {
-                // This can happen if the user has trust agents enabled, which make lockscreen
-                // dismissable. Send a fake non-zero (accept) finger.
-                Slog.d(TAG, "Sending fake finger");
-                mMockHalResultController.sendAuthenticated(1 /* deviceId */,
-                        1 /* fingerId */, 1 /* groupId */, null /* token */);
-            } else {
-                mMockHalResultController.sendAuthenticated(
-                        mMockHalResultController.mLastAuthArgs.deviceId,
-                        mMockHalResultController.mLastAuthArgs.fingerId,
-                        mMockHalResultController.mLastAuthArgs.groupId,
-                        mMockHalResultController.mLastAuthArgs.token);
-            }
-        }
-    }
-
-    /**
-     * The fingerprint HAL allows multiple (5) fingerprint attempts per HIDL invocation of the
-     * authenticate method. However, valid fingerprint authentications are invalidated after
-     * {@link MockHalResultController#AUTH_VALIDITY_MS}, meaning UDFPS touches will be reported as
-     * rejects if touched after that duration. However, since a valid fingerprint was detected, the
-     * HAL and FingerprintService will not look for subsequent fingerprints.
-     *
-     * In order to keep the FingerprintManager API consistent (that multiple fingerprint attempts
-     * are allowed per auth lifecycle), we internally cancel and restart authentication so that the
-     * sensor is responsive again.
-     */
-    private static final class RestartAuthRunnable implements Runnable {
-        @NonNull private final Fingerprint21UdfpsMock mFingerprint21;
-        @NonNull private final TestableBiometricScheduler mScheduler;
-
-        // Store a reference to the auth consumer that should be invalidated.
-        private AuthenticationConsumer mLastAuthConsumer;
-
-        RestartAuthRunnable(@NonNull Fingerprint21UdfpsMock fingerprint21,
-                @NonNull TestableBiometricScheduler scheduler) {
-            mFingerprint21 = fingerprint21;
-            mScheduler = scheduler;
-        }
-
-        void setLastAuthReference(AuthenticationConsumer lastAuthConsumer) {
-            mLastAuthConsumer = lastAuthConsumer;
-        }
-
-        @Override
-        public void run() {
-            final BaseClientMonitor client = mScheduler.getCurrentClient();
-
-            // We don't care about FingerprintDetectClient, since accept/rejects are both OK. UDFPS
-            // rejects will just simulate the path where non-enrolled fingers are presented.
-            if (!(client instanceof FingerprintAuthenticationClient)) {
-                Slog.e(TAG, "Non-FingerprintAuthenticationClient client: " + client);
-                return;
-            }
-
-            // Perhaps the runnable is stale, or the user stopped/started auth manually. Do not
-            // restart auth in this case.
-            if (client != mLastAuthConsumer) {
-                Slog.e(TAG, "Current client: " + client
-                        + " does not match mLastAuthConsumer: " + mLastAuthConsumer);
-                return;
-            }
-
-            Slog.d(TAG, "Restarting auth, current: " + client);
-            mFingerprint21.setDebugMessage("Auth timed out");
-
-            final FingerprintAuthenticationClient authClient =
-                    (FingerprintAuthenticationClient) client;
-            // Store the authClient parameters so it can be rescheduled
-            final IBinder token = client.getToken();
-            final long operationId = authClient.getOperationId();
-            final int cookie = client.getCookie();
-            final ClientMonitorCallbackConverter listener = new ClientMonitorCallbackConverter(
-                    new IFingerprintServiceReceiver.Default());
-            final boolean restricted = authClient.isRestricted();
-            final int statsClient = client.getLogger().getStatsClient();
-            final boolean isKeyguard = authClient.isKeyguard();
-            final FingerprintAuthenticateOptions options =
-                    new FingerprintAuthenticateOptions.Builder()
-                            .setUserId(client.getTargetUserId())
-                            .setOpPackageName(client.getOwnerString())
-                            .build();
-
-            // Don't actually send cancel() to the HAL, since successful auth already finishes
-            // HAL authenticate() lifecycle. Just
-            mScheduler.getInternalCallback().onClientFinished(client, true /* success */);
-
-            // Schedule this only after we invoke onClientFinished for the previous client, so that
-            // internal preemption logic is not run.
-            mFingerprint21.scheduleAuthenticate(token,
-                    operationId, cookie, listener, options, restricted, statsClient,
-                    isKeyguard);
-        }
-    }
-
-    private Fingerprint21UdfpsMock(@NonNull Context context,
-            @NonNull BiometricStateCallback biometricStateCallback,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @NonNull TestableBiometricScheduler scheduler,
-            @NonNull Handler handler,
-            @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-            @NonNull MockHalResultController controller,
-            @NonNull BiometricContext biometricContext) {
-        super(context, biometricStateCallback, authenticationStateListeners, sensorProps, scheduler,
-                handler, lockoutResetDispatcher, controller, biometricContext);
-        mScheduler = scheduler;
-        mScheduler.init(this);
-        mHandler = handler;
-        // resetLockout is controlled by the framework, so hardwareAuthToken is not required
-        final boolean resetLockoutRequiresHardwareAuthToken = false;
-        final int maxTemplatesAllowed = mContext.getResources()
-                .getInteger(R.integer.config_fingerprintMaxTemplatesPerUser);
-        mSensorProperties = new FingerprintSensorPropertiesInternal(sensorProps.sensorId,
-                sensorProps.sensorStrength, maxTemplatesAllowed, sensorProps.componentInfo,
-                FingerprintSensorProperties.TYPE_UDFPS_OPTICAL, false /* halControlsIllumination */,
-                resetLockoutRequiresHardwareAuthToken, sensorProps.getAllLocations());
-        mMockHalResultController = controller;
-        mUserHasTrust = new SparseBooleanArray();
-        mTrustManager = context.getSystemService(TrustManager.class);
-        mTrustManager.registerTrustListener(this);
-        mRandom = new Random();
-        mFakeRejectRunnable = new FakeRejectRunnable();
-        mFakeAcceptRunnable = new FakeAcceptRunnable();
-        mRestartAuthRunnable = new RestartAuthRunnable(this, mScheduler);
-
-        // We can't initialize this during MockHalresultController's constructor due to a circular
-        // dependency.
-        mMockHalResultController.init(mRestartAuthRunnable, this);
-    }
-
-    @Override
-    public void onTrustChanged(boolean enabled, boolean newlyUnlocked, int userId, int flags,
-            List<String> trustGrantedMessages) {
-        mUserHasTrust.put(userId, enabled);
-    }
-
-    @Override
-    public void onTrustManagedChanged(boolean enabled, int userId) {
-
-    }
-
-    @Override
-    public void onTrustError(CharSequence message) {
-
-    }
-
-    @Override
-    public void onEnabledTrustAgentsChanged(int userId) {
-
-    }
-
-    @Override
-    public void onIsActiveUnlockRunningChanged(boolean isRunning, int userId) {
-
-    }
-
-    @Override
-    @NonNull
-    public List<FingerprintSensorPropertiesInternal> getSensorProperties() {
-        final List<FingerprintSensorPropertiesInternal> properties = new ArrayList<>();
-        properties.add(mSensorProperties);
-        return properties;
-    }
-
-    @Override
-    public void onPointerDown(long requestId, int sensorId, PointerContext pc) {
-        mHandler.post(() -> {
-            Slog.d(TAG, "onFingerDown");
-            final AuthenticationConsumer lastAuthenticatedConsumer =
-                    mMockHalResultController.getLastAuthenticatedClient();
-            final BaseClientMonitor currentScheduledClient = mScheduler.getCurrentClient();
-
-            if (currentScheduledClient == null) {
-                Slog.d(TAG, "Not authenticating");
-                return;
-            }
-
-            mHandler.removeCallbacks(mFakeRejectRunnable);
-            mHandler.removeCallbacks(mFakeAcceptRunnable);
-
-            // The sensor was authenticated, is still the currently scheduled client, and the
-            // user touched the UDFPS affordance. Pretend that auth succeeded.
-            final boolean authenticatedClientIsCurrent = lastAuthenticatedConsumer != null
-                    && lastAuthenticatedConsumer == currentScheduledClient;
-            // User is unlocked on keyguard via Trust Agent
-            final boolean keyguardAndTrusted;
-            if (currentScheduledClient instanceof FingerprintAuthenticationClient) {
-                keyguardAndTrusted = ((FingerprintAuthenticationClient) currentScheduledClient)
-                        .isKeyguard()
-                        && mUserHasTrust.get(currentScheduledClient.getTargetUserId(), false);
-            } else {
-                keyguardAndTrusted = false;
-            }
-
-            final int captureDuration = getNewCaptureDuration();
-            final int matchingDuration = getMatchingDuration();
-            final int totalDuration = captureDuration + matchingDuration;
-            setDebugMessage("Duration: " + totalDuration
-                    + " (" + captureDuration + " + " + matchingDuration + ")");
-            if (authenticatedClientIsCurrent || keyguardAndTrusted) {
-                mFakeAcceptRunnable.setSimulationTime(System.currentTimeMillis(), captureDuration);
-                mHandler.postDelayed(mFakeAcceptRunnable, totalDuration);
-            } else if (currentScheduledClient instanceof AuthenticationConsumer) {
-                // Something is authenticating but authentication has not succeeded yet. Pretend
-                // that auth rejected.
-                mFakeRejectRunnable.setSimulationTime(System.currentTimeMillis(), captureDuration);
-                mHandler.postDelayed(mFakeRejectRunnable, totalDuration);
-            }
-        });
-    }
-
-    @Override
-    public void onPointerUp(long requestId, int sensorId, PointerContext pc) {
-        mHandler.post(() -> {
-            Slog.d(TAG, "onFingerUp");
-
-            // Only one of these can be on the handler at any given time (see onFingerDown). If
-            // image capture is not complete, send ACQUIRED_TOO_FAST and remove the runnable from
-            // the handler. Image capture (onFingerDown) needs to happen again.
-            if (mHandler.hasCallbacks(mFakeRejectRunnable)
-                    && !mFakeRejectRunnable.isImageCaptureComplete()) {
-                mHandler.removeCallbacks(mFakeRejectRunnable);
-                mMockHalResultController.onAcquired(0 /* deviceId */,
-                        FingerprintManager.FINGERPRINT_ACQUIRED_TOO_FAST,
-                        0 /* vendorCode */);
-            } else if (mHandler.hasCallbacks(mFakeAcceptRunnable)
-                    && !mFakeAcceptRunnable.isImageCaptureComplete()) {
-                mHandler.removeCallbacks(mFakeAcceptRunnable);
-                mMockHalResultController.onAcquired(0 /* deviceId */,
-                        FingerprintManager.FINGERPRINT_ACQUIRED_TOO_FAST,
-                        0 /* vendorCode */);
-            }
-        });
-    }
-
-    private int getNewCaptureDuration() {
-        final ContentResolver contentResolver = mContext.getContentResolver();
-        final int captureTime = Settings.Secure.getIntForUser(contentResolver,
-                CONFIG_AUTH_DELAY_PT1,
-                DEFAULT_AUTH_DELAY_PT1_MS,
-                UserHandle.USER_CURRENT);
-        final int randomDelayRange = Settings.Secure.getIntForUser(contentResolver,
-                CONFIG_AUTH_DELAY_RANDOMNESS,
-                DEFAULT_AUTH_DELAY_RANDOMNESS_MS,
-                UserHandle.USER_CURRENT);
-        final int randomDelay = mRandom.nextInt(randomDelayRange * 2) - randomDelayRange;
-
-        // Must be at least 0
-        return Math.max(captureTime + randomDelay, 0);
-    }
-
-    private int getMatchingDuration() {
-        final int matchingTime = Settings.Secure.getIntForUser(mContext.getContentResolver(),
-                CONFIG_AUTH_DELAY_PT2,
-                DEFAULT_AUTH_DELAY_PT2_MS,
-                UserHandle.USER_CURRENT);
-
-        // Must be at least 0
-        return Math.max(matchingTime, 0);
-    }
-
-    private void setDebugMessage(String message) {
-        try {
-            final IUdfpsOverlayController controller = getUdfpsOverlayController();
-            // Things can happen before SysUI loads and sets the controller.
-            if (controller != null) {
-                Slog.d(TAG, "setDebugMessage: " + message);
-                controller.setDebugMessage(mSensorProperties.sensorId, message);
-            }
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when sending message: " + message, e);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintAuthenticationClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintAuthenticationClient.java
deleted file mode 100644
index b6311af..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintAuthenticationClient.java
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import static android.adaptiveauth.Flags.reportBiometricAuthAttempts;
-
-import static com.android.systemui.shared.Flags.sidefpsControllerRefactor;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.app.TaskStackListener;
-import android.content.Context;
-import android.hardware.biometrics.BiometricAuthenticator;
-import android.hardware.biometrics.BiometricConstants;
-import android.hardware.biometrics.BiometricFingerprintConstants;
-import android.hardware.biometrics.BiometricManager.Authenticators;
-import android.hardware.biometrics.BiometricSourceType;
-import android.hardware.biometrics.fingerprint.PointerContext;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.FingerprintAuthenticateOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
-import android.hardware.fingerprint.ISidefpsController;
-import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.log.CallbackWithProbe;
-import com.android.server.biometrics.log.Probe;
-import com.android.server.biometrics.sensors.AuthenticationClient;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BiometricNotificationUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.PerformanceTracker;
-import com.android.server.biometrics.sensors.SensorOverlays;
-import com.android.server.biometrics.sensors.fingerprint.Udfps;
-import com.android.server.biometrics.sensors.fingerprint.UdfpsHelper;
-
-import java.util.ArrayList;
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific authentication client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-class FingerprintAuthenticationClient
-        extends AuthenticationClient<IBiometricsFingerprint, FingerprintAuthenticateOptions>
-        implements Udfps {
-
-    private static final String TAG = "Biometrics/FingerprintAuthClient";
-
-    private final LockoutFrameworkImpl mLockoutFrameworkImpl;
-    @NonNull private final SensorOverlays mSensorOverlays;
-    @NonNull private final FingerprintSensorPropertiesInternal mSensorProps;
-    @NonNull private final CallbackWithProbe<Probe> mALSProbeCallback;
-    @NonNull private final AuthenticationStateListeners mAuthenticationStateListeners;
-
-    private boolean mIsPointerDown;
-
-    FingerprintAuthenticationClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon,
-            @NonNull IBinder token, long requestId,
-            @NonNull ClientMonitorCallbackConverter listener, long operationId,
-            boolean restricted, @NonNull FingerprintAuthenticateOptions options,
-            int cookie, boolean requireConfirmation, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext, boolean isStrongBiometric,
-            @NonNull TaskStackListener taskStackListener,
-            @NonNull LockoutFrameworkImpl lockoutTracker,
-            @Nullable IUdfpsOverlayController udfpsOverlayController,
-            // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-            @Nullable ISidefpsController sidefpsController,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            boolean allowBackgroundAuthentication,
-            @NonNull FingerprintSensorPropertiesInternal sensorProps,
-            @Authenticators.Types int sensorStrength) {
-        super(context, lazyDaemon, token, listener, operationId, restricted,
-                options, cookie, requireConfirmation, logger, biometricContext,
-                isStrongBiometric, taskStackListener, lockoutTracker, allowBackgroundAuthentication,
-                false /* shouldVibrate */, sensorStrength);
-        setRequestId(requestId);
-        mLockoutFrameworkImpl = lockoutTracker;
-        if (sidefpsControllerRefactor()) {
-            mSensorOverlays = new SensorOverlays(udfpsOverlayController);
-        } else {
-            mSensorOverlays = new SensorOverlays(udfpsOverlayController, sidefpsController);
-        }
-        mAuthenticationStateListeners = authenticationStateListeners;
-        mSensorProps = sensorProps;
-        mALSProbeCallback = getLogger().getAmbientLightProbe(false /* startWithClient */);
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-
-        if (mSensorProps.isAnyUdfpsType()) {
-            // UDFPS requires user to touch before becoming "active"
-            mState = STATE_STARTED_PAUSED;
-        } else {
-            mState = STATE_STARTED;
-        }
-    }
-
-    @NonNull
-    @Override
-    protected ClientMonitorCallback wrapCallbackForStart(@NonNull ClientMonitorCallback callback) {
-        return new ClientMonitorCompositeCallback(mALSProbeCallback, callback);
-    }
-
-    @Override
-    public void onAuthenticated(BiometricAuthenticator.Identifier identifier,
-            boolean authenticated, ArrayList<Byte> token) {
-        super.onAuthenticated(identifier, authenticated, token);
-
-        // Authentication lifecycle ends either when
-        // 1) Authenticated == true
-        // 2) Error occurred (lockout or some other error)
-        // Note that authentication doesn't end when Authenticated == false
-
-        if (authenticated) {
-            mState = STATE_STOPPED;
-            resetFailedAttempts(getTargetUserId());
-            mSensorOverlays.hide(getSensorId());
-            if (sidefpsControllerRefactor()) {
-                mAuthenticationStateListeners.onAuthenticationStopped();
-            }
-            if (reportBiometricAuthAttempts()) {
-                mAuthenticationStateListeners.onAuthenticationSucceeded(getRequestReason(),
-                        getTargetUserId());
-            }
-        } else {
-            mState = STATE_STARTED_PAUSED_ATTEMPTED;
-            final @LockoutTracker.LockoutMode int lockoutMode =
-                    mLockoutFrameworkImpl.getLockoutModeForUser(getTargetUserId());
-            if (lockoutMode != LockoutTracker.LOCKOUT_NONE) {
-                Slog.w(TAG, "Fingerprint locked out, lockoutMode(" + lockoutMode + ")");
-                final int errorCode = lockoutMode == LockoutTracker.LOCKOUT_TIMED
-                        ? BiometricConstants.BIOMETRIC_ERROR_LOCKOUT
-                        : BiometricConstants.BIOMETRIC_ERROR_LOCKOUT_PERMANENT;
-                // Send the error, but do not invoke the FinishCallback yet. Since lockout is not
-                // controlled by the HAL, the framework must stop the sensor before finishing the
-                // client.
-                mSensorOverlays.hide(getSensorId());
-                if (sidefpsControllerRefactor()) {
-                    mAuthenticationStateListeners.onAuthenticationStopped();
-                }
-                onErrorInternal(errorCode, 0 /* vendorCode */, false /* finish */);
-                cancel();
-            }
-            if (reportBiometricAuthAttempts()) {
-                mAuthenticationStateListeners.onAuthenticationFailed(getRequestReason(),
-                        getTargetUserId());
-            }
-        }
-    }
-
-    @Override
-    public void onError(int errorCode, int vendorCode) {
-        super.onError(errorCode, vendorCode);
-
-        if (errorCode == BiometricFingerprintConstants.FINGERPRINT_ERROR_BAD_CALIBRATION) {
-            BiometricNotificationUtils.showBadCalibrationNotification(getContext());
-        }
-
-        mSensorOverlays.hide(getSensorId());
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStopped();
-        }
-    }
-
-    private void resetFailedAttempts(int userId) {
-        mLockoutFrameworkImpl.resetFailedAttemptsForUser(true /* clearAttemptCounter */, userId);
-    }
-
-    @Override
-    protected void handleLifecycleAfterAuth(boolean authenticated) {
-        if (authenticated) {
-            mCallback.onClientFinished(this, true /* success */);
-        }
-    }
-
-    @Override
-    public void onAcquired(int acquiredInfo, int vendorCode) {
-        mAuthenticationStateListeners.onAuthenticationAcquired(
-                BiometricSourceType.FINGERPRINT, getRequestReason(), acquiredInfo);
-        super.onAcquired(acquiredInfo, vendorCode);
-
-        @LockoutTracker.LockoutMode final int lockoutMode =
-                getLockoutTracker().getLockoutModeForUser(getTargetUserId());
-        if (lockoutMode == LockoutTracker.LOCKOUT_NONE) {
-            PerformanceTracker pt = PerformanceTracker.getInstanceForSensorId(getSensorId());
-            pt.incrementAcquireForUser(getTargetUserId(), isCryptoOperation());
-        }
-    }
-
-    @Override
-    public boolean wasUserDetected() {
-        // TODO: Update if it needs to be used for fingerprint, i.e. success/reject, error_timeout
-        return false;
-    }
-
-    @Override
-    public @LockoutTracker.LockoutMode int handleFailedAttempt(int userId) {
-        mLockoutFrameworkImpl.addFailedAttemptForUser(userId);
-        @LockoutTracker.LockoutMode final int lockoutMode =
-                getLockoutTracker().getLockoutModeForUser(userId);
-        final PerformanceTracker performanceTracker =
-                PerformanceTracker.getInstanceForSensorId(getSensorId());
-        if (lockoutMode == LockoutTracker.LOCKOUT_PERMANENT) {
-            performanceTracker.incrementPermanentLockoutForUser(userId);
-        } else if (lockoutMode == LockoutTracker.LOCKOUT_TIMED) {
-            performanceTracker.incrementTimedLockoutForUser(userId);
-        }
-
-        return lockoutMode;
-    }
-
-    @Override
-    protected void startHalOperation() {
-        mSensorOverlays.show(getSensorId(), getRequestReason(), this);
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStarted(getRequestReason());
-        }
-
-        try {
-            // GroupId was never used. In fact, groupId is always the same as userId.
-            getFreshDaemon().authenticate(mOperationId, getTargetUserId());
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting auth", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mSensorOverlays.hide(getSensorId());
-            if (sidefpsControllerRefactor()) {
-                mAuthenticationStateListeners.onAuthenticationStopped();
-            }
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    protected void stopHalOperation() {
-        mSensorOverlays.hide(getSensorId());
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStopped();
-        }
-
-        try {
-            getFreshDaemon().cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting cancel", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public void onPointerDown(PointerContext pc) {
-        mIsPointerDown = true;
-        mState = STATE_STARTED;
-        mALSProbeCallback.getProbe().enable();
-        UdfpsHelper.onFingerDown(getFreshDaemon(), (int) pc.x, (int) pc.y, pc.minor, pc.major);
-
-        try {
-            getListener().onUdfpsPointerDown(getSensorId());
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception", e);
-        }
-    }
-
-    @Override
-    public void onPointerUp(PointerContext pc) {
-        mIsPointerDown = false;
-        mState = STATE_STARTED_PAUSED_ATTEMPTED;
-        mALSProbeCallback.getProbe().disable();
-        UdfpsHelper.onFingerUp(getFreshDaemon());
-
-        try {
-            getListener().onUdfpsPointerUp(getSensorId());
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception", e);
-        }
-    }
-
-    @Override
-    public boolean isPointerDown() {
-        return mIsPointerDown;
-    }
-
-    @Override
-    public void onUdfpsUiEvent(@FingerprintManager.UdfpsUiEvent int event) {
-        // Unsupported in HIDL.
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintDetectClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintDetectClient.java
deleted file mode 100644
index 50e48fe..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintDetectClient.java
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import static com.android.systemui.shared.Flags.sidefpsControllerRefactor;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.content.Context;
-import android.hardware.biometrics.BiometricAuthenticator;
-import android.hardware.biometrics.BiometricFingerprintConstants;
-import android.hardware.biometrics.BiometricRequestConstants;
-import android.hardware.biometrics.fingerprint.PointerContext;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.FingerprintAuthenticateOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.AcquisitionClient;
-import com.android.server.biometrics.sensors.AuthenticationConsumer;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.PerformanceTracker;
-import com.android.server.biometrics.sensors.SensorOverlays;
-import com.android.server.biometrics.sensors.fingerprint.Udfps;
-import com.android.server.biometrics.sensors.fingerprint.UdfpsHelper;
-
-import java.util.ArrayList;
-import java.util.function.Supplier;
-
-/**
- * Performs fingerprint detection without exposing any matching information (e.g. accept/reject
- * have the same haptic, lockout counter is not increased).
- */
-class FingerprintDetectClient extends AcquisitionClient<IBiometricsFingerprint>
-        implements AuthenticationConsumer, Udfps {
-
-    private static final String TAG = "FingerprintDetectClient";
-
-    private final boolean mIsStrongBiometric;
-    @NonNull private final SensorOverlays mSensorOverlays;
-    private boolean mIsPointerDown;
-
-    public FingerprintDetectClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon,
-            @NonNull IBinder token, long requestId,
-            @NonNull ClientMonitorCallbackConverter listener,
-            @NonNull FingerprintAuthenticateOptions options,
-            @NonNull BiometricLogger biometricLogger, @NonNull BiometricContext biometricContext,
-            @Nullable IUdfpsOverlayController udfpsOverlayController,
-            boolean isStrongBiometric) {
-        super(context, lazyDaemon, token, listener, options.getUserId(),
-                options.getOpPackageName(), 0 /* cookie */, options.getSensorId(),
-                true /* shouldVibrate */, biometricLogger, biometricContext);
-        setRequestId(requestId);
-        if (sidefpsControllerRefactor()) {
-            mSensorOverlays = new SensorOverlays(udfpsOverlayController);
-        } else {
-            mSensorOverlays = new SensorOverlays(
-                    udfpsOverlayController, null /* sideFpsController */);
-        }
-        mIsStrongBiometric = isStrongBiometric;
-    }
-
-    @Override
-    protected void stopHalOperation() {
-        mSensorOverlays.hide(getSensorId());
-
-        try {
-            getFreshDaemon().cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting cancel", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-        startHalOperation();
-    }
-
-    @Override
-    protected void startHalOperation() {
-        mSensorOverlays.show(getSensorId(), BiometricRequestConstants.REASON_AUTH_KEYGUARD,
-                this);
-
-        try {
-            getFreshDaemon().authenticate(0 /* operationId */, getTargetUserId());
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting auth", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mSensorOverlays.hide(getSensorId());
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public void onPointerDown(PointerContext pc) {
-        mIsPointerDown = true;
-        UdfpsHelper.onFingerDown(getFreshDaemon(), (int) pc.x, (int) pc.y, pc.minor, pc.major);
-    }
-
-    @Override
-    public void onPointerUp(PointerContext pc) {
-        mIsPointerDown = false;
-        UdfpsHelper.onFingerUp(getFreshDaemon());
-    }
-
-    @Override
-    public boolean isPointerDown() {
-        return mIsPointerDown;
-    }
-
-    @Override
-    public void onUdfpsUiEvent(@FingerprintManager.UdfpsUiEvent int event) {
-        // Unsupported in HIDL.
-    }
-
-    @Override
-    public void onAuthenticated(BiometricAuthenticator.Identifier identifier,
-            boolean authenticated, ArrayList<Byte> hardwareAuthToken) {
-        getLogger().logOnAuthenticated(getContext(), getOperationContext(),
-                authenticated, false /* requireConfirmation */,
-                getTargetUserId(), false /* isBiometricPrompt */);
-
-        // Do not distinguish between success/failures.
-        vibrateSuccess();
-
-        final PerformanceTracker pm = PerformanceTracker.getInstanceForSensorId(getSensorId());
-        pm.incrementAuthForUser(getTargetUserId(), authenticated);
-
-        try {
-            getListener().onDetected(getSensorId(), getTargetUserId(), mIsStrongBiometric);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when sending onDetected", e);
-        }
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_DETECT_INTERACTION;
-    }
-
-    @Override
-    public boolean interruptsPrecedingClients() {
-        return true;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintEnrollClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintEnrollClient.java
deleted file mode 100644
index 8f937fc..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintEnrollClient.java
+++ /dev/null
@@ -1,229 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import static com.android.systemui.shared.Flags.sidefpsControllerRefactor;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.content.Context;
-import android.hardware.biometrics.BiometricAuthenticator;
-import android.hardware.biometrics.BiometricFingerprintConstants;
-import android.hardware.biometrics.BiometricStateListener;
-import android.hardware.biometrics.fingerprint.PointerContext;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.Fingerprint;
-import android.hardware.fingerprint.FingerprintEnrollOptions;
-import android.hardware.fingerprint.FingerprintManager;
-import android.hardware.fingerprint.ISidefpsController;
-import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BiometricNotificationUtils;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.ClientMonitorCompositeCallback;
-import com.android.server.biometrics.sensors.EnrollClient;
-import com.android.server.biometrics.sensors.SensorOverlays;
-import com.android.server.biometrics.sensors.fingerprint.Udfps;
-import com.android.server.biometrics.sensors.fingerprint.UdfpsHelper;
-
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific enroll client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-public class FingerprintEnrollClient extends EnrollClient<IBiometricsFingerprint>
-        implements Udfps {
-
-    private static final String TAG = "FingerprintEnrollClient";
-
-    @NonNull private final SensorOverlays mSensorOverlays;
-    private final @FingerprintManager.EnrollReason int mEnrollReason;
-    @NonNull private final AuthenticationStateListeners mAuthenticationStateListeners;
-    private boolean mIsPointerDown;
-
-    FingerprintEnrollClient(
-            @NonNull Context context, @NonNull Supplier<IBiometricsFingerprint> lazyDaemon,
-            @NonNull IBinder token, long requestId,
-            @NonNull ClientMonitorCallbackConverter listener, int userId,
-            @NonNull byte[] hardwareAuthToken, @NonNull String owner,
-            @NonNull BiometricUtils<Fingerprint> utils, int timeoutSec, int sensorId,
-            @NonNull BiometricLogger biometricLogger, @NonNull BiometricContext biometricContext,
-            @Nullable IUdfpsOverlayController udfpsOverlayController,
-            // TODO(b/288175061): remove with Flags.FLAG_SIDEFPS_CONTROLLER_REFACTOR
-            @Nullable ISidefpsController sidefpsController,
-            @NonNull AuthenticationStateListeners authenticationStateListeners,
-            @FingerprintManager.EnrollReason int enrollReason,
-            @NonNull FingerprintEnrollOptions options) {
-        super(context, lazyDaemon, token, listener, userId, hardwareAuthToken, owner, utils,
-                timeoutSec, sensorId, true /* shouldVibrate */, biometricLogger,
-                biometricContext,
-                BiometricFingerprintConstants.reasonToMetric(options.getEnrollReason()));
-        setRequestId(requestId);
-        if (sidefpsControllerRefactor()) {
-            mSensorOverlays = new SensorOverlays(udfpsOverlayController);
-        } else {
-            mSensorOverlays = new SensorOverlays(udfpsOverlayController, sidefpsController);
-        }
-        mAuthenticationStateListeners = authenticationStateListeners;
-
-        mEnrollReason = enrollReason;
-        if (enrollReason == FingerprintManager.ENROLL_FIND_SENSOR) {
-            getLogger().disableMetrics();
-        }
-        Slog.w(TAG, "EnrollOptions "
-                + FingerprintEnrollOptions.enrollReasonToString(options.getEnrollReason()));
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-
-        BiometricNotificationUtils.cancelFingerprintEnrollNotification(getContext());
-    }
-
-    @NonNull
-    @Override
-    protected ClientMonitorCallback wrapCallbackForStart(@NonNull ClientMonitorCallback callback) {
-        return new ClientMonitorCompositeCallback(
-                getLogger().getAmbientLightProbe(true /* startWithClient */), callback);
-    }
-
-    @Override
-    protected boolean hasReachedEnrollmentLimit() {
-        final int limit = getContext().getResources().getInteger(
-                com.android.internal.R.integer.config_fingerprintMaxTemplatesPerUser);
-        final int enrolled = mBiometricUtils.getBiometricsForUser(getContext(), getTargetUserId())
-                .size();
-        if (enrolled >= limit) {
-            Slog.w(TAG, "Too many fingerprints registered, user: " + getTargetUserId());
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    protected void startHalOperation() {
-        mSensorOverlays.show(getSensorId(), getRequestReasonFromEnrollReason(mEnrollReason),
-                this);
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStarted(
-                    getRequestReasonFromEnrollReason(mEnrollReason));
-        }
-
-        BiometricNotificationUtils.cancelBadCalibrationNotification(getContext());
-        try {
-            // GroupId was never used. In fact, groupId is always the same as userId.
-            getFreshDaemon().enroll(mHardwareAuthToken, getTargetUserId(), mTimeoutSec);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting enroll", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mSensorOverlays.hide(getSensorId());
-            if (sidefpsControllerRefactor()) {
-                mAuthenticationStateListeners.onAuthenticationStopped();
-            }
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    protected void stopHalOperation() {
-        mSensorOverlays.hide(getSensorId());
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStopped();
-        }
-
-        try {
-            getFreshDaemon().cancel();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting cancel", e);
-            onError(BiometricFingerprintConstants.FINGERPRINT_ERROR_HW_UNAVAILABLE,
-                    0 /* vendorCode */);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public void onEnrollResult(BiometricAuthenticator.Identifier identifier, int remaining) {
-        super.onEnrollResult(identifier, remaining);
-
-        mSensorOverlays.ifUdfps(
-                controller -> controller.onEnrollmentProgress(getSensorId(), remaining));
-
-        if (remaining == 0) {
-            mSensorOverlays.hide(getSensorId());
-            if (sidefpsControllerRefactor()) {
-                mAuthenticationStateListeners.onAuthenticationStopped();
-            }
-        }
-    }
-
-    @Override
-    public void onAcquired(int acquiredInfo, int vendorCode) {
-        super.onAcquired(acquiredInfo, vendorCode);
-
-        mSensorOverlays.ifUdfps(controller -> {
-            if (UdfpsHelper.isValidAcquisitionMessage(getContext(), acquiredInfo, vendorCode)) {
-                controller.onEnrollmentHelp(getSensorId());
-            }
-        });
-
-        mCallback.onBiometricAction(BiometricStateListener.ACTION_SENSOR_TOUCH);
-    }
-
-    @Override
-    public void onError(int errorCode, int vendorCode) {
-        super.onError(errorCode, vendorCode);
-
-        mSensorOverlays.hide(getSensorId());
-        if (sidefpsControllerRefactor()) {
-            mAuthenticationStateListeners.onAuthenticationStopped();
-        }
-    }
-
-    @Override
-    public void onPointerDown(PointerContext pc) {
-        mIsPointerDown = true;
-        UdfpsHelper.onFingerDown(getFreshDaemon(), (int) pc.x, (int) pc.y, pc.minor, pc.major);
-    }
-
-    @Override
-    public void onPointerUp(PointerContext pc) {
-        mIsPointerDown = false;
-        UdfpsHelper.onFingerUp(getFreshDaemon());
-    }
-
-    @Override
-    public boolean isPointerDown() {
-        return mIsPointerDown;
-    }
-
-    @Override
-    public void onUdfpsUiEvent(@FingerprintManager.UdfpsUiEvent int event) {
-        // Unsupported in HIDL.
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintGenerateChallengeClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintGenerateChallengeClient.java
deleted file mode 100644
index 3bb7135..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintGenerateChallengeClient.java
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.GenerateChallengeClient;
-
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific generateChallenge/preEnroll client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-public class FingerprintGenerateChallengeClient
-        extends GenerateChallengeClient<IBiometricsFingerprint> {
-
-    private static final String TAG = "FingerprintGenerateChallengeClient";
-
-    FingerprintGenerateChallengeClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, @NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener, int userId, @NonNull String owner,
-            int sensorId, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext) {
-        super(context, lazyDaemon, token, listener, userId, owner, sensorId, logger,
-                biometricContext);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            final long challenge = getFreshDaemon().preEnroll();
-            try {
-                getListener().onChallengeGenerated(getSensorId(), getTargetUserId(), challenge);
-                mCallback.onClientFinished(this, true /* success */);
-            } catch (RemoteException e) {
-                Slog.e(TAG, "Remote exception", e);
-                mCallback.onClientFinished(this, false /* success */);
-            }
-        } catch (RemoteException e) {
-            Slog.e(TAG, "preEnroll failed", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalCleanupClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalCleanupClient.java
deleted file mode 100644
index 8b61f59..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalCleanupClient.java
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.Fingerprint;
-import android.os.IBinder;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.InternalCleanupClient;
-import com.android.server.biometrics.sensors.InternalEnumerateClient;
-import com.android.server.biometrics.sensors.RemovalClient;
-
-import java.util.List;
-import java.util.Map;
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific internal cleanup client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-class FingerprintInternalCleanupClient
-        extends InternalCleanupClient<Fingerprint, IBiometricsFingerprint> {
-
-    FingerprintInternalCleanupClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, int userId,
-            @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull BiometricUtils<Fingerprint> utils,
-            @NonNull Map<Integer, Long> authenticatorIds) {
-        super(context, lazyDaemon, userId, owner, sensorId, logger, biometricContext,
-                utils, authenticatorIds);
-    }
-
-    @Override
-    protected InternalEnumerateClient<IBiometricsFingerprint> getEnumerateClient(
-            Context context, Supplier<IBiometricsFingerprint> lazyDaemon, IBinder token,
-            int userId, String owner, List<Fingerprint> enrolledList,
-            BiometricUtils<Fingerprint> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        return new FingerprintInternalEnumerateClient(context, lazyDaemon, token, userId, owner,
-                enrolledList, utils, sensorId, logger, biometricContext);
-    }
-
-    @Override
-    protected RemovalClient<Fingerprint, IBiometricsFingerprint> getRemovalClient(Context context,
-            Supplier<IBiometricsFingerprint> lazyDaemon, IBinder token,
-            int biometricId, int userId, String owner, BiometricUtils<Fingerprint> utils,
-            int sensorId, @NonNull BiometricLogger logger,
-            @NonNull BiometricContext biometricContext, Map<Integer, Long> authenticatorIds) {
-        // Internal remove does not need to send results to anyone. Cleanup (enumerate + remove)
-        // is all done internally.
-        return new FingerprintRemovalClient(context, lazyDaemon, token,
-                null /* ClientMonitorCallbackConverter */, biometricId, userId, owner, utils,
-                sensorId, logger, biometricContext, authenticatorIds);
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalEnumerateClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalEnumerateClient.java
deleted file mode 100644
index 0840f1b..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintInternalEnumerateClient.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.Fingerprint;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.InternalEnumerateClient;
-
-import java.util.List;
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific internal enumerate client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-class FingerprintInternalEnumerateClient extends InternalEnumerateClient<IBiometricsFingerprint> {
-    private static final String TAG = "FingerprintInternalEnumerateClient";
-
-    FingerprintInternalEnumerateClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, @NonNull IBinder token,
-            int userId, @NonNull String owner, @NonNull List<Fingerprint> enrolledList,
-            @NonNull BiometricUtils<Fingerprint> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        super(context, lazyDaemon, token, userId, owner, enrolledList, utils, sensorId,
-                logger, biometricContext);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().enumerate();
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting enumerate", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRemovalClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRemovalClient.java
deleted file mode 100644
index 9ec56c2..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRemovalClient.java
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.Fingerprint;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BiometricUtils;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-import com.android.server.biometrics.sensors.RemovalClient;
-
-import java.util.Map;
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific removal client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-class FingerprintRemovalClient extends RemovalClient<Fingerprint, IBiometricsFingerprint> {
-    private static final String TAG = "FingerprintRemovalClient";
-
-    private final int mBiometricId;
-
-    FingerprintRemovalClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, @NonNull IBinder token,
-            @NonNull ClientMonitorCallbackConverter listener, int biometricId, int userId,
-            @NonNull String owner, @NonNull BiometricUtils<Fingerprint> utils, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull Map<Integer, Long> authenticatorIds) {
-        super(context, lazyDaemon, token, listener, userId, owner, utils, sensorId,
-                logger, biometricContext, authenticatorIds);
-        mBiometricId = biometricId;
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            // GroupId was never used. In fact, groupId is always the same as userId.
-            getFreshDaemon().remove(getTargetUserId(), mBiometricId);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Remote exception when requesting remove", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintResetLockoutClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintResetLockoutClient.java
deleted file mode 100644
index 843fcc8..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintResetLockoutClient.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.BaseClientMonitor;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-
-/**
- * Clears lockout, which is handled in the framework (and not the HAL) for the
- * IBiometricsFingerprint@2.1 interface.
- */
-public class FingerprintResetLockoutClient extends BaseClientMonitor {
-
-    @NonNull final LockoutFrameworkImpl mLockoutTracker;
-
-    public FingerprintResetLockoutClient(@NonNull Context context, int userId,
-            @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull LockoutFrameworkImpl lockoutTracker) {
-        super(context, null /* token */, null /* listener */, userId, owner, 0 /* cookie */,
-                sensorId, logger, biometricContext);
-        mLockoutTracker = lockoutTracker;
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-        mLockoutTracker.resetFailedAttemptsForUser(true /* clearAttemptCounter */,
-                getTargetUserId());
-        callback.onClientFinished(this, true /* success */);
-    }
-
-    public boolean interruptsPrecedingClients() {
-        return true;
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_RESET_LOCKOUT;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRevokeChallengeClient.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRevokeChallengeClient.java
deleted file mode 100644
index 6273417..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintRevokeChallengeClient.java
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.os.IBinder;
-import android.os.RemoteException;
-import android.util.Slog;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.RevokeChallengeClient;
-
-import java.util.function.Supplier;
-
-/**
- * Fingerprint-specific revokeChallenge client supporting the
- * {@link android.hardware.biometrics.fingerprint.V2_1} and
- * {@link android.hardware.biometrics.fingerprint.V2_2} HIDL interfaces.
- */
-public class FingerprintRevokeChallengeClient
-        extends RevokeChallengeClient<IBiometricsFingerprint> {
-
-    private static final String TAG = "FingerprintRevokeChallengeClient";
-
-    FingerprintRevokeChallengeClient(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, @NonNull IBinder token,
-            int userId, @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext) {
-        super(context, lazyDaemon, token, userId, owner, sensorId, logger, biometricContext);
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            getFreshDaemon().postEnroll();
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "revokeChallenge/postEnroll failed", e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintUpdateActiveUserClientLegacy.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintUpdateActiveUserClientLegacy.java
deleted file mode 100644
index fc85402..0000000
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/FingerprintUpdateActiveUserClientLegacy.java
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Copyright (C) 2024 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import android.annotation.NonNull;
-import android.content.Context;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.os.Build;
-import android.os.Environment;
-import android.os.RemoteException;
-import android.os.SELinux;
-import android.util.Slog;
-
-import com.android.server.biometrics.BiometricsProto;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.HalClientMonitor;
-
-import java.io.File;
-import java.util.Map;
-import java.util.function.Supplier;
-
-/**
- * TODO(b/304604965): Delete this class once Flags.DE_HIDL is ready for release.
- */
-public class FingerprintUpdateActiveUserClientLegacy extends
-        HalClientMonitor<IBiometricsFingerprint> {
-    private static final String TAG = "FingerprintUpdateActiveUserClient";
-    private static final String FP_DATA_DIR = "fpdata";
-
-    private final Supplier<Integer> mCurrentUserId;
-    private final boolean mForceUpdateAuthenticatorId;
-    private final boolean mHasEnrolledBiometrics;
-    private final Map<Integer, Long> mAuthenticatorIds;
-    private File mDirectory;
-
-    FingerprintUpdateActiveUserClientLegacy(@NonNull Context context,
-            @NonNull Supplier<IBiometricsFingerprint> lazyDaemon, int userId,
-            @NonNull String owner, int sensorId,
-            @NonNull BiometricLogger logger, @NonNull BiometricContext biometricContext,
-            @NonNull Supplier<Integer> currentUserId,
-            boolean hasEnrolledBiometrics, @NonNull Map<Integer, Long> authenticatorIds,
-            boolean forceUpdateAuthenticatorId) {
-        super(context, lazyDaemon, null /* token */, null /* listener */, userId, owner,
-                0 /* cookie */, sensorId, logger, biometricContext);
-        mCurrentUserId = currentUserId;
-        mForceUpdateAuthenticatorId = forceUpdateAuthenticatorId;
-        mHasEnrolledBiometrics = hasEnrolledBiometrics;
-        mAuthenticatorIds = authenticatorIds;
-    }
-
-    @Override
-    public void start(@NonNull ClientMonitorCallback callback) {
-        super.start(callback);
-
-        if (mCurrentUserId.get() == getTargetUserId() && !mForceUpdateAuthenticatorId) {
-            Slog.d(TAG, "Already user: " + mCurrentUserId + ", returning");
-            callback.onClientFinished(this, true /* success */);
-            return;
-        }
-
-        int firstSdkInt = Build.VERSION.DEVICE_INITIAL_SDK_INT;
-        if (firstSdkInt < Build.VERSION_CODES.BASE) {
-            Slog.e(TAG, "First SDK version " + firstSdkInt + " is invalid; must be "
-                    + "at least VERSION_CODES.BASE");
-        }
-        File baseDir;
-        if (firstSdkInt <= Build.VERSION_CODES.O_MR1) {
-            baseDir = Environment.getUserSystemDirectory(getTargetUserId());
-        } else {
-            baseDir = Environment.getDataVendorDeDirectory(getTargetUserId());
-        }
-
-        mDirectory = new File(baseDir, FP_DATA_DIR);
-        if (!mDirectory.exists()) {
-            if (!mDirectory.mkdir()) {
-                Slog.e(TAG, "Cannot make directory: " + mDirectory.getAbsolutePath());
-                callback.onClientFinished(this, false /* success */);
-                return;
-            }
-            // Calling mkdir() from this process will create a directory with our
-            // permissions (inherited from the containing dir). This command fixes
-            // the label.
-            if (!SELinux.restorecon(mDirectory)) {
-                Slog.e(TAG, "Restorecons failed. Directory will have wrong label.");
-                callback.onClientFinished(this, false /* success */);
-                return;
-            }
-        }
-
-        startHalOperation();
-    }
-
-    @Override
-    public void unableToStart() {
-        // Nothing to do here
-    }
-
-    @Override
-    protected void startHalOperation() {
-        try {
-            final int targetId = getTargetUserId();
-            Slog.d(TAG, "Setting active user: " + targetId);
-            getFreshDaemon().setActiveGroup(targetId, mDirectory.getAbsolutePath());
-            mAuthenticatorIds.put(targetId, mHasEnrolledBiometrics
-                    ? getFreshDaemon().getAuthenticatorId() : 0L);
-            mCallback.onClientFinished(this, true /* success */);
-        } catch (RemoteException e) {
-            Slog.e(TAG, "Failed to setActiveGroup: " + e);
-            mCallback.onClientFinished(this, false /* success */);
-        }
-    }
-
-    @Override
-    public int getProtoEnum() {
-        return BiometricsProto.CM_UPDATE_ACTIVE_USER;
-    }
-}
diff --git a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/HidlToAidlSensorAdapter.java b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/HidlToAidlSensorAdapter.java
index 47fdcdb..3214b6d 100644
--- a/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/HidlToAidlSensorAdapter.java
+++ b/services/core/java/com/android/server/biometrics/sensors/fingerprint/hidl/HidlToAidlSensorAdapter.java
@@ -186,7 +186,7 @@
                 mLockoutTracker,
                 mLockoutResetDispatcher,
                 mAuthSessionCoordinator,
-                () -> {}, mAidlResponseHandlerCallback);
+                mAidlResponseHandlerCallback);
     }
 
     @VisibleForTesting IBiometricsFingerprint getIBiometricsFingerprint() {
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
index 7e04277..90b131a 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/AuthServiceTest.java
@@ -16,10 +16,10 @@
 
 package com.android.server.biometrics;
 
-import static android.adaptiveauth.Flags.FLAG_REPORT_BIOMETRIC_AUTH_ATTEMPTS;
 import static android.Manifest.permission.MANAGE_BIOMETRIC;
 import static android.Manifest.permission.TEST_BIOMETRIC;
 import static android.Manifest.permission.USE_BIOMETRIC_INTERNAL;
+import static android.adaptiveauth.Flags.FLAG_REPORT_BIOMETRIC_AUTH_ATTEMPTS;
 import static android.hardware.biometrics.BiometricAuthenticator.TYPE_NONE;
 import static android.hardware.biometrics.BiometricConstants.BIOMETRIC_ERROR_CANCELED;
 import static android.hardware.biometrics.BiometricConstants.BIOMETRIC_SUCCESS;
@@ -65,8 +65,6 @@
 import android.os.UserHandle;
 import android.os.test.TestLooper;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.platform.test.flag.junit.SetFlagsRule;
@@ -204,43 +202,7 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(com.android.server.biometrics.Flags.FLAG_DE_HIDL)
-    public void testRegisterAuthenticator_registerAuthenticators() throws Exception {
-        final int fingerprintId = 0;
-        final int fingerprintStrength = 15;
-
-        final int faceId = 1;
-        final int faceStrength = 15;
-
-        final String[] config = {
-                // ID0:Fingerprint:Strong
-                String.format("%d:2:%d", fingerprintId, fingerprintStrength),
-                // ID2:Face:Convenience
-                String.format("%d:8:%d", faceId, faceStrength)
-        };
-
-        when(mInjector.getConfiguration(any())).thenReturn(config);
-
-        mAuthService = new AuthService(mContext, mInjector);
-        mAuthService.onStart();
-
-        verify(mFingerprintService).registerAuthenticators(mFingerprintPropsCaptor.capture());
-        final FingerprintSensorPropertiesInternal fingerprintProp =
-                mFingerprintPropsCaptor.getValue().get(0);
-        assertEquals(fingerprintProp.sensorId, fingerprintId);
-        assertEquals(fingerprintProp.sensorStrength,
-                Utils.authenticatorStrengthToPropertyStrength(fingerprintStrength));
-
-        verify(mFaceService).registerAuthenticators(mFacePropsCaptor.capture());
-        final FaceSensorPropertiesInternal faceProp = mFacePropsCaptor.getValue().get(0);
-        assertEquals(faceProp.sensorId, faceId);
-        assertEquals(faceProp.sensorStrength,
-                Utils.authenticatorStrengthToPropertyStrength(faceStrength));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(com.android.server.biometrics.Flags.FLAG_DE_HIDL)
-    public void testRegisterAuthenticator_registerAuthenticatorsLegacy() throws RemoteException {
+    public void testRegisterAuthenticator_registerAuthenticators() throws RemoteException {
         final int fingerprintId = 0;
         final int fingerprintStrength = 15;
 
@@ -265,7 +227,7 @@
         mFingerprintLooper.dispatchAll();
         mFaceLooper.dispatchAll();
 
-        verify(mFingerprintService).registerAuthenticatorsLegacy(
+        verify(mFingerprintService).registerAuthenticators(
                 mFingerprintSensorConfigurationsCaptor.capture());
 
         final SensorProps[] fingerprintProp = mFingerprintSensorConfigurationsCaptor.getValue()
@@ -275,8 +237,7 @@
         assertEquals(fingerprintProp[0].commonProps.sensorStrength,
                 Utils.authenticatorStrengthToPropertyStrength(fingerprintStrength));
 
-        verify(mFaceService).registerAuthenticatorsLegacy(
-                mFaceSensorConfigurationsCaptor.capture());
+        verify(mFaceService).registerAuthenticators(mFaceSensorConfigurationsCaptor.capture());
 
         final android.hardware.biometrics.face.SensorProps[] faceProp =
                 mFaceSensorConfigurationsCaptor.getValue()
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
index 5fd29c2..503ab8e 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java
@@ -76,7 +76,6 @@
 import android.os.Binder;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.RemoteException;
 import android.os.UserManager;
 import android.platform.test.annotations.Presubmit;
@@ -90,7 +89,6 @@
 import android.view.DisplayInfo;
 import android.view.WindowManager;
 
-import androidx.test.InstrumentationRegistry;
 import androidx.test.filters.SmallTest;
 
 import com.android.internal.R;
@@ -246,14 +244,8 @@
         when(mInjector.getGateKeeperService()).thenReturn(mGateKeeperService);
         when(mInjector.getNotificationLogger()).thenReturn(mNotificationLogger);
         when(mGateKeeperService.getSecureUserId(anyInt())).thenReturn(42L);
-
-        if (com.android.server.biometrics.Flags.deHidl()) {
-            when(mBiometricHandlerProvider.getBiometricCallbackHandler()).thenReturn(
-                    new Handler(TestableLooper.get(this).getLooper()));
-        } else {
-            when(mBiometricHandlerProvider.getBiometricCallbackHandler()).thenReturn(
-                    new Handler(Looper.getMainLooper()));
-        }
+        when(mBiometricHandlerProvider.getBiometricCallbackHandler()).thenReturn(
+                new Handler(TestableLooper.get(this).getLooper()));
 
         final String[] config = {
                 "0:2:15",  // ID0:Fingerprint:Strong
@@ -2037,11 +2029,7 @@
     }
 
     private void waitForIdle() {
-        if (com.android.server.biometrics.Flags.deHidl()) {
-            TestableLooper.get(this).processAllMessages();
-        } else {
-            InstrumentationRegistry.getInstrumentation().waitForIdleSync();
-        }
+        TestableLooper.get(this).processAllMessages();
     }
 
     private byte[] generateRandomHAT() {
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/log/BiometricContextProviderTest.java b/services/tests/servicestests/src/com/android/server/biometrics/log/BiometricContextProviderTest.java
index c7300bb..960357f 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/log/BiometricContextProviderTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/log/BiometricContextProviderTest.java
@@ -87,8 +87,12 @@
     private ISessionListener mSessionListener;
     @Mock
     private WindowManager mWindowManager;
+    @Mock
+    private Consumer<OperationContext> mStartHalConsumer;
 
-    private OperationContextExt mOpContext = new OperationContextExt(true);
+    private final FingerprintAuthenticateOptions mAuthenticateOptions =
+            new FingerprintAuthenticateOptions.Builder().build();
+    private final OperationContextExt mOpContext = new OperationContextExt(true);
     private IBiometricContextListener mListener;
     private BiometricContextProvider mProvider;
 
@@ -200,11 +204,11 @@
         final List<Integer> actual = new ArrayList<>();
         final List<Integer> expected = List.of(FoldState.FULLY_CLOSED, FoldState.FULLY_OPENED,
                 FoldState.UNKNOWN, FoldState.HALF_OPENED);
-        mProvider.subscribe(mOpContext, ctx -> {
+        mProvider.subscribe(mOpContext, mStartHalConsumer, ctx -> {
             assertThat(ctx).isSameInstanceAs(mOpContext.toAidlContext());
             assertThat(mProvider.getFoldState()).isEqualTo(ctx.foldState);
             actual.add(ctx.foldState);
-        });
+        }, mAuthenticateOptions);
 
         for (int v : expected) {
             mListener.onFoldChanged(v);
@@ -228,11 +232,11 @@
                 AuthenticateOptions.DISPLAY_STATE_NO_UI,
                 AuthenticateOptions.DISPLAY_STATE_LOCKSCREEN);
 
-        mProvider.subscribe(mOpContext, ctx -> {
+        mProvider.subscribe(mOpContext, mStartHalConsumer, ctx -> {
             assertThat(ctx).isSameInstanceAs(mOpContext.toAidlContext());
             assertThat(mProvider.getDisplayState()).isEqualTo(ctx.displayState);
             actual.add(ctx.displayState);
-        });
+        }, mAuthenticateOptions);
 
         for (int v : expected) {
             mListener.onDisplayStateChanged(v);
@@ -250,11 +254,11 @@
     public void testSubscribesToAod() throws RemoteException {
         final List<Boolean> actual = new ArrayList<>();
 
-        mProvider.subscribe(mOpContext, ctx -> {
+        mProvider.subscribe(mOpContext, mStartHalConsumer, ctx -> {
             assertThat(ctx).isSameInstanceAs(mOpContext.toAidlContext());
             assertThat(mProvider.isAod()).isEqualTo(ctx.isAod);
             actual.add(ctx.isAod);
-        });
+        }, mAuthenticateOptions);
 
         for (int v : List.of(
                 AuthenticateOptions.DISPLAY_STATE_AOD,
@@ -273,10 +277,10 @@
     public void testSubscribesToAwake() throws RemoteException {
         final List<Boolean> actual = new ArrayList<>();
 
-        mProvider.subscribe(mOpContext, ctx -> {
+        mProvider.subscribe(mOpContext, mStartHalConsumer, ctx -> {
             assertThat(ctx).isSameInstanceAs(mOpContext.toAidlContext());
             actual.add(mProvider.isAwake());
-        });
+        }, mAuthenticateOptions);
 
         for (int v : List.of(
                 AuthenticateOptions.DISPLAY_STATE_LOCKSCREEN,
@@ -295,14 +299,15 @@
     public void testSubscribesWithDifferentState() throws RemoteException {
         final Consumer<OperationContext> nonEmptyConsumer = mock(Consumer.class);
         mListener.onDisplayStateChanged(AuthenticateOptions.DISPLAY_STATE_AOD);
-        mProvider.subscribe(mOpContext, nonEmptyConsumer);
-        verify(nonEmptyConsumer).accept(same(mOpContext.toAidlContext()));
+        mProvider.subscribe(mOpContext, mStartHalConsumer, nonEmptyConsumer, mAuthenticateOptions);
+
+        assertThat(mOpContext.getDisplayState()).isEqualTo(AuthenticateOptions.DISPLAY_STATE_AOD);
     }
 
     @Test
     public void testUnsubscribes() throws RemoteException {
         final Consumer<OperationContext> emptyConsumer = mock(Consumer.class);
-        mProvider.subscribe(mOpContext, emptyConsumer);
+        mProvider.subscribe(mOpContext, mStartHalConsumer, emptyConsumer, mAuthenticateOptions);
         mProvider.unsubscribe(mOpContext);
 
         mListener.onDisplayStateChanged(AuthenticateOptions.DISPLAY_STATE_AOD);
@@ -311,7 +316,7 @@
         mListener.onDisplayStateChanged(AuthenticateOptions.DISPLAY_STATE_UNKNOWN);
 
         final Consumer<OperationContext> nonEmptyConsumer = mock(Consumer.class);
-        mProvider.subscribe(mOpContext, nonEmptyConsumer);
+        mProvider.subscribe(mOpContext, mStartHalConsumer, nonEmptyConsumer, mAuthenticateOptions);
         mListener.onDisplayStateChanged(AuthenticateOptions.DISPLAY_STATE_LOCKSCREEN);
         mProvider.unsubscribe(mOpContext);
         mListener.onDisplayStateChanged(AuthenticateOptions.DISPLAY_STATE_NO_UI);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/BiometricSchedulerTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/BiometricSchedulerTest.java
index 971323a..fc573d2 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/BiometricSchedulerTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/BiometricSchedulerTest.java
@@ -52,13 +52,12 @@
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.UserHandle;
+import android.os.test.TestLooper;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.testing.AndroidTestingRunner;
 import android.testing.TestableContext;
-import android.testing.TestableLooper;
 import android.util.Slog;
 
 import androidx.annotation.NonNull;
@@ -66,7 +65,6 @@
 import androidx.test.InstrumentationRegistry;
 import androidx.test.filters.SmallTest;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.nano.BiometricSchedulerProto;
@@ -79,7 +77,8 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -90,7 +89,6 @@
 @Presubmit
 @SmallTest
 @RunWith(AndroidTestingRunner.class)
-@TestableLooper.RunWithLooper(setAsMainLooper = true)
 public class BiometricSchedulerTest {
 
     private static final String TAG = "BiometricSchedulerTest";
@@ -105,6 +103,9 @@
     @Rule
     public final CheckFlagsRule mCheckFlagsRule =
             DeviceFlagsValueProvider.createCheckFlagsRule();
+    @Rule
+    public final MockitoRule mockito = MockitoJUnit.rule();
+
     private BiometricScheduler<IFingerprint, ISession> mScheduler;
     private IBinder mToken;
     private int mCurrentUserId = UserHandle.USER_SYSTEM;
@@ -121,8 +122,10 @@
                 mUsersStoppedCount++;
                 mCurrentUserId = UserHandle.USER_NULL;
             };
+    private TestLooper mLooper;
     private boolean mStartOperationsFinish = true;
     private int mStartUserClientCount = 0;
+
     @Mock
     private IBiometricService mBiometricService;
     @Mock
@@ -140,44 +143,39 @@
 
     @Before
     public void setUp() {
-        MockitoAnnotations.initMocks(this);
         mToken = new Binder();
+        mLooper = new TestLooper();
+
         when(mAuthSessionCoordinator.getLockoutStateFor(anyInt(), anyInt())).thenReturn(
                 BIOMETRIC_SUCCESS);
         when(mBiometricContext.getAuthSessionCoordinator()).thenReturn(mAuthSessionCoordinator);
-        if (Flags.deHidl()) {
-            mScheduler = new BiometricScheduler<>(
-                    new Handler(TestableLooper.get(this).getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_UNKNOWN,
-                    null /* gestureAvailabilityDispatcher */,
-                    mBiometricService,
-                    LOG_NUM_RECENT_OPERATIONS,
-                    () -> mCurrentUserId,
-                    new UserSwitchProvider<IFingerprint, ISession>() {
-                        @NonNull
-                        @Override
-                        public StopUserClient<ISession> getStopUserClient(int userId) {
-                            return new TestStopUserClient(mContext, () -> mSession, mToken, userId,
-                                    TEST_SENSOR_ID, mBiometricLogger, mBiometricContext,
-                                    mUserStoppedCallback, () -> mShouldFailStopUser);
-                        }
 
-                        @NonNull
-                        @Override
-                        public StartUserClient<IFingerprint, ISession> getStartUserClient(
-                                int newUserId) {
-                            mStartUserClientCount++;
-                            return new TestStartUserClient(mContext, () -> mFingerprint, mToken,
-                                    newUserId, TEST_SENSOR_ID, mBiometricLogger, mBiometricContext,
-                                    mUserStartedCallback, mStartOperationsFinish);
-                        }
-                    });
-        } else {
-            mScheduler = new BiometricScheduler<>(
-                    new Handler(TestableLooper.get(this).getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_UNKNOWN, null /* gestureAvailabilityTracker */,
-                    mBiometricService, LOG_NUM_RECENT_OPERATIONS);
-        }
+        mScheduler = new BiometricScheduler<>(
+                new Handler(mLooper.getLooper()),
+                BiometricScheduler.SENSOR_TYPE_UNKNOWN,
+                null /* gestureAvailabilityDispatcher */,
+                mBiometricService,
+                LOG_NUM_RECENT_OPERATIONS,
+                () -> mCurrentUserId,
+                new UserSwitchProvider<IFingerprint, ISession>() {
+                    @NonNull
+                    @Override
+                    public StopUserClient<ISession> getStopUserClient(int userId) {
+                        return new TestStopUserClient(mContext, () -> mSession, mToken, userId,
+                                TEST_SENSOR_ID, mBiometricLogger, mBiometricContext,
+                                mUserStoppedCallback, () -> mShouldFailStopUser);
+                    }
+
+                    @NonNull
+                    @Override
+                    public StartUserClient<IFingerprint, ISession> getStartUserClient(
+                            int newUserId) {
+                        mStartUserClientCount++;
+                        return new TestStartUserClient(mContext, () -> mFingerprint, mToken,
+                                newUserId, TEST_SENSOR_ID, mBiometricLogger, mBiometricContext,
+                                mUserStartedCallback, mStartOperationsFinish);
+                    }
+                });
     }
 
     @Test
@@ -657,7 +655,6 @@
     @Test
     public void testClearBiometricQueue_clearsHungAuthOperation() {
         // Creating a hung client
-        final TestableLooper looper = TestableLooper.get(this);
         final Supplier<Object> lazyDaemon1 = () -> mock(Object.class);
         final TestAuthenticationClient client1 = new TestAuthenticationClient(mContext,
                 lazyDaemon1, mToken, mock(ClientMonitorCallbackConverter.class), 0 /* cookie */,
@@ -676,9 +673,9 @@
         assertNotNull(mScheduler.mCurrentOperation);
         assertEquals(0, mScheduler.getCurrentPendingCount());
 
-        looper.moveTimeForward(10000);
+        mLooper.moveTimeForward(10000);
         waitForIdle();
-        looper.moveTimeForward(3000);
+        mLooper.moveTimeForward(3000);
         waitForIdle();
 
         // The hung client did not honor this operation, verify onError and authenticated
@@ -693,7 +690,6 @@
     @Test
     public void testAuthWorks_afterClearBiometricQueue() {
         // Creating a hung client
-        final TestableLooper looper = TestableLooper.get(this);
         final Supplier<Object> lazyDaemon1 = () -> mock(Object.class);
         final TestAuthenticationClient client1 = new TestAuthenticationClient(mContext,
                 lazyDaemon1, mToken, mock(ClientMonitorCallbackConverter.class), 0 /* cookie */,
@@ -714,10 +710,10 @@
         waitForIdle();
 
         // The watchdog should kick off the cancellation
-        looper.moveTimeForward(10000);
+        mLooper.moveTimeForward(10000);
         waitForIdle();
         // After 10 seconds the HAL has 3 seconds to respond to a cancel
-        looper.moveTimeForward(3000);
+        mLooper.moveTimeForward(3000);
         waitForIdle();
 
         // The hung client did not honor this operation, verify onError and authenticated
@@ -752,10 +748,10 @@
         client2.getCallback().onClientFinished(client2, true);
         waitForIdle();
 
-        looper.moveTimeForward(10000);
+        mLooper.moveTimeForward(10000);
         waitForIdle();
         // After 10 seconds the HAL has 3 seconds to respond to a cancel
-        looper.moveTimeForward(3000);
+        mLooper.moveTimeForward(3000);
         waitForIdle();
 
         //Asserting auth client passes
@@ -766,7 +762,6 @@
     @Test
     public void testClearBiometricQueue_doesNotClearOperationsWhenQueueNotStuck() {
         //Creating clients
-        final TestableLooper looper = TestableLooper.get(this);
         final Supplier<Object> lazyDaemon1 = () -> mock(Object.class);
         final TestAuthenticationClient client1 = new TestAuthenticationClient(mContext,
                 lazyDaemon1, mToken, mock(ClientMonitorCallbackConverter.class), 0 /* cookie */,
@@ -793,10 +788,10 @@
         waitForIdle();
 
         // The watchdog should kick off the cancellation
-        looper.moveTimeForward(10000);
+        mLooper.moveTimeForward(10000);
         waitForIdle();
         // After 10 seconds the HAL has 3 seconds to respond to a cancel
-        looper.moveTimeForward(3000);
+        mLooper.moveTimeForward(3000);
         waitForIdle();
 
         //Watchdog does not clear pending operations
@@ -855,7 +850,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleOperation_whenNoUser() {
         mCurrentUserId = UserHandle.USER_NULL;
 
@@ -871,7 +865,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleOperation_whenNoUser_notStarted() {
         mCurrentUserId = UserHandle.USER_NULL;
         mStartOperationsFinish = false;
@@ -896,7 +889,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleOperation_whenNoUser_notStarted_andReset() {
         mCurrentUserId = UserHandle.USER_NULL;
         mStartOperationsFinish = false;
@@ -923,7 +915,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleOperation_whenSameUser() {
         mCurrentUserId = 10;
 
@@ -940,7 +931,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleOperation_whenDifferentUser() {
         mCurrentUserId = 10;
 
@@ -961,7 +951,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testStartUser_alwaysStartsNextOperation() {
         mCurrentUserId = UserHandle.USER_NULL;
 
@@ -990,7 +979,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testStartUser_failsClearsStopUserClient() {
         mCurrentUserId = UserHandle.USER_NULL;
 
@@ -1033,7 +1021,7 @@
     }
 
     private void waitForIdle() {
-        TestableLooper.get(this).processAllMessages();
+        mLooper.dispatchAll();
     }
 
     private static class TestAuthenticateOptions implements AuthenticateOptions {
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/UserAwareBiometricSchedulerTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/UserAwareBiometricSchedulerTest.java
deleted file mode 100644
index dd5d826..0000000
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/UserAwareBiometricSchedulerTest.java
+++ /dev/null
@@ -1,393 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors;
-
-import static android.testing.TestableLooper.RunWithLooper;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.hardware.biometrics.IBiometricService;
-import android.os.Binder;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.UserHandle;
-import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.flag.junit.CheckFlagsRule;
-import android.platform.test.flag.junit.DeviceFlagsValueProvider;
-import android.testing.AndroidTestingRunner;
-import android.testing.TestableLooper;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.test.filters.SmallTest;
-
-import com.android.server.biometrics.Flags;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnit;
-import org.mockito.junit.MockitoRule;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.function.Supplier;
-
-@Presubmit
-@RunWith(AndroidTestingRunner.class)
-@RunWithLooper
-@SmallTest
-public class UserAwareBiometricSchedulerTest {
-
-    private static final String TAG = "UserAwareBiometricSchedulerTest";
-    private static final int TEST_SENSOR_ID = 0;
-
-    @Rule
-    public final MockitoRule mockito = MockitoJUnit.rule();
-    @Rule
-    public final CheckFlagsRule mCheckFlagsRule =
-            DeviceFlagsValueProvider.createCheckFlagsRule();
-
-    private Handler mHandler;
-    private UserAwareBiometricScheduler mScheduler;
-    private final IBinder mToken = new Binder();
-
-    @Mock
-    private Context mContext;
-    @Mock
-    private IBiometricService mBiometricService;
-    @Mock
-    private BiometricLogger mBiometricLogger;
-    @Mock
-    private BiometricContext mBiometricContext;
-
-    private boolean mShouldFailStopUser = false;
-    private final StopUserClientShouldFail mStopUserClientShouldFail =
-            () -> {
-                return mShouldFailStopUser;
-            };
-    private final TestUserStartedCallback mUserStartedCallback = new TestUserStartedCallback();
-    private final TestUserStoppedCallback mUserStoppedCallback = new TestUserStoppedCallback();
-    private int mCurrentUserId = UserHandle.USER_NULL;
-    private boolean mStartOperationsFinish = true;
-    private int mStartUserClientCount = 0;
-
-    @Before
-    public void setUp() {
-        mShouldFailStopUser = false;
-        mHandler = new Handler(TestableLooper.get(this).getLooper());
-        mScheduler = new UserAwareBiometricScheduler(TAG,
-                mHandler,
-                BiometricScheduler.SENSOR_TYPE_UNKNOWN,
-                null /* gestureAvailabilityDispatcher */,
-                mBiometricService,
-                () -> mCurrentUserId,
-                new UserAwareBiometricScheduler.UserSwitchCallback() {
-                    @NonNull
-                    @Override
-                    public StopUserClient<?> getStopUserClient(int userId) {
-                        return new TestStopUserClient(mContext, Object::new, mToken, userId,
-                                TEST_SENSOR_ID, mBiometricLogger, mBiometricContext,
-                                mUserStoppedCallback, mStopUserClientShouldFail);
-                    }
-
-                    @NonNull
-                    @Override
-                    public StartUserClient<?, ?> getStartUserClient(int newUserId) {
-                        mStartUserClientCount++;
-                        return new TestStartUserClient(mContext, Object::new, mToken, newUserId,
-                                TEST_SENSOR_ID,  mBiometricLogger, mBiometricContext,
-                                mUserStartedCallback, mStartOperationsFinish);
-                    }
-                });
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void testScheduleOperation_whenNoUser() {
-        mCurrentUserId = UserHandle.USER_NULL;
-
-        final BaseClientMonitor nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(0);
-
-        mScheduler.scheduleClientMonitor(nextClient);
-        waitForIdle();
-
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(0);
-        assertThat(mUserStartedCallback.mStartedUsers).containsExactly(0);
-        verify(nextClient).start(any());
-    }
-
-    @Test
-    public void testScheduleOperation_whenNoUser_notStarted() {
-        mCurrentUserId = UserHandle.USER_NULL;
-        mStartOperationsFinish = false;
-
-        final BaseClientMonitor[] nextClients = new BaseClientMonitor[]{
-                mock(BaseClientMonitor.class),
-                mock(BaseClientMonitor.class),
-                mock(BaseClientMonitor.class)
-        };
-        for (BaseClientMonitor client : nextClients) {
-            when(client.getTargetUserId()).thenReturn(5);
-            mScheduler.scheduleClientMonitor(client);
-            waitForIdle();
-        }
-
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(0);
-        assertThat(mUserStartedCallback.mStartedUsers).isEmpty();
-        assertThat(mStartUserClientCount).isEqualTo(1);
-        for (BaseClientMonitor client : nextClients) {
-            verify(client, never()).start(any());
-        }
-    }
-
-    @Test
-    public void testScheduleOperation_whenNoUser_notStarted_andReset() {
-        mCurrentUserId = UserHandle.USER_NULL;
-        mStartOperationsFinish = false;
-
-        final BaseClientMonitor client = mock(BaseClientMonitor.class);
-        when(client.getTargetUserId()).thenReturn(5);
-        mScheduler.scheduleClientMonitor(client);
-        waitForIdle();
-
-        final TestStartUserClient startUserClient =
-                (TestStartUserClient) mScheduler.mCurrentOperation.getClientMonitor();
-        mScheduler.reset();
-        assertThat(mScheduler.mCurrentOperation).isNull();
-
-        final BiometricSchedulerOperation fakeOperation = new BiometricSchedulerOperation(
-                mock(BaseClientMonitor.class), new ClientMonitorCallback() {});
-        mScheduler.mCurrentOperation = fakeOperation;
-        startUserClient.mCallback.onClientFinished(startUserClient, true);
-        assertThat(fakeOperation).isSameInstanceAs(mScheduler.mCurrentOperation);
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void testScheduleOperation_whenSameUser() {
-        mCurrentUserId = 10;
-
-        BaseClientMonitor nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(mCurrentUserId);
-
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-
-        verify(nextClient).start(any());
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(0);
-        assertThat(mUserStartedCallback.mStartedUsers).isEmpty();
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void testScheduleOperation_whenDifferentUser() {
-        mCurrentUserId = 10;
-
-        final int nextUserId = 11;
-        BaseClientMonitor nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(nextUserId);
-
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(1);
-
-        waitForIdle();
-        assertThat(mUserStartedCallback.mStartedUsers).containsExactly(nextUserId);
-
-        waitForIdle();
-        verify(nextClient).start(any());
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void testStartUser_alwaysStartsNextOperation() {
-        BaseClientMonitor nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(10);
-
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-        verify(nextClient).start(any());
-
-        // finish first operation
-        mScheduler.getInternalCallback().onClientFinished(nextClient, true /* success */);
-        waitForIdle();
-
-        // schedule second operation but swap out the current operation
-        // before it runs so that it's not current when it's completion callback runs
-        nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(11);
-        mUserStartedCallback.mAfterStart = () -> mScheduler.mCurrentOperation = null;
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-        verify(nextClient).start(any());
-        assertThat(mUserStartedCallback.mStartedUsers).containsExactly(10, 11).inOrder();
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(1);
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void testStartUser_failsClearsStopUserClient() {
-        // When a stop user client fails, check that mStopUserClient
-        // is set to null to prevent the scheduler from getting stuck.
-        BaseClientMonitor nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(10);
-
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-        verify(nextClient).start(any());
-
-        // finish first operation
-        mScheduler.getInternalCallback().onClientFinished(nextClient, true /* success */);
-        waitForIdle();
-
-        // schedule second operation but swap out the current operation
-        // before it runs so that it's not current when it's completion callback runs
-        nextClient = mock(BaseClientMonitor.class);
-        when(nextClient.getTargetUserId()).thenReturn(11);
-        mUserStartedCallback.mAfterStart = () -> mScheduler.mCurrentOperation = null;
-        mShouldFailStopUser = true;
-        mScheduler.scheduleClientMonitor(nextClient);
-
-        waitForIdle();
-        assertThat(mUserStartedCallback.mStartedUsers).containsExactly(10, 11).inOrder();
-        assertThat(mUserStoppedCallback.mNumInvocations).isEqualTo(0);
-        assertThat(mScheduler.getStopUserClient()).isEqualTo(null);
-    }
-
-    private void waitForIdle() {
-        TestableLooper.get(this).processAllMessages();
-    }
-
-    private class TestUserStoppedCallback implements StopUserClient.UserStoppedCallback {
-        int mNumInvocations;
-
-        @Override
-        public void onUserStopped() {
-            mNumInvocations++;
-            mCurrentUserId = UserHandle.USER_NULL;
-        }
-    }
-
-    private class TestUserStartedCallback implements StartUserClient.UserStartedCallback<Object> {
-        final List<Integer> mStartedUsers = new ArrayList<>();
-        Runnable mAfterStart = null;
-
-        @Override
-        public void onUserStarted(int newUserId, Object newObject, int halInterfaceVersion) {
-            mStartedUsers.add(newUserId);
-            mCurrentUserId = newUserId;
-            if (mAfterStart != null) {
-                mAfterStart.run();
-            }
-        }
-    }
-
-    private interface StopUserClientShouldFail {
-        boolean shouldFail();
-    }
-
-    private class TestStopUserClient extends StopUserClient<Object> {
-        private StopUserClientShouldFail mShouldFailClient;
-        public TestStopUserClient(@NonNull Context context,
-                @NonNull Supplier<Object> lazyDaemon, @Nullable IBinder token, int userId,
-                int sensorId, @NonNull BiometricLogger logger,
-                @NonNull BiometricContext biometricContext,
-                @NonNull UserStoppedCallback callback, StopUserClientShouldFail shouldFail) {
-            super(context, lazyDaemon, token, userId, sensorId, logger, biometricContext, callback);
-            mShouldFailClient = shouldFail;
-        }
-
-        @Override
-        protected void startHalOperation() {
-
-        }
-
-        @Override
-        public void start(@NonNull ClientMonitorCallback callback) {
-            super.start(callback);
-            if (mShouldFailClient.shouldFail()) {
-                getCallback().onClientFinished(this, false /* success */);
-                // When the above fails, it means that the HAL has died, in this case we
-                // need to ensure the UserSwitchCallback correctly returns the NULL user handle.
-                mCurrentUserId = UserHandle.USER_NULL;
-            } else {
-                onUserStopped();
-            }
-        }
-
-        @Override
-        public void unableToStart() {
-
-        }
-    }
-
-    private static class TestStartUserClient extends StartUserClient<Object, Object> {
-        private final boolean mShouldFinish;
-
-        ClientMonitorCallback mCallback;
-
-        public TestStartUserClient(@NonNull Context context,
-                @NonNull Supplier<Object> lazyDaemon, @Nullable IBinder token, int userId,
-                int sensorId, @NonNull BiometricLogger logger,
-                @NonNull BiometricContext biometricContext,
-                @NonNull UserStartedCallback<Object> callback, boolean shouldFinish) {
-            super(context, lazyDaemon, token, userId, sensorId, logger, biometricContext, callback);
-            mShouldFinish = shouldFinish;
-        }
-
-        @Override
-        protected void startHalOperation() {
-
-        }
-
-        @Override
-        public void start(@NonNull ClientMonitorCallback callback) {
-            super.start(callback);
-
-            mCallback = callback;
-            if (mShouldFinish) {
-                mUserStartedCallback.onUserStarted(
-                        getTargetUserId(), new Object(), 1 /* halInterfaceVersion */);
-                callback.onClientFinished(this, true /* success */);
-            }
-        }
-
-        @Override
-        public void unableToStart() {
-
-        }
-    }
-}
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/FaceServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/FaceServiceTest.java
index e4c56a7..1ca36a3 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/FaceServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/FaceServiceTest.java
@@ -147,11 +147,10 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
-    public void registerAuthenticatorsLegacy_defaultOnly() throws Exception {
+    public void registerAuthenticators_defaultOnly() throws Exception {
         initService();
 
-        mFaceService.mServiceWrapper.registerAuthenticatorsLegacy(mFaceSensorConfigurations);
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_DEFAULT),
@@ -161,13 +160,13 @@
     }
 
     @Test
-    @RequiresFlagsEnabled({Flags.FLAG_DE_HIDL, Flags.FLAG_FACE_VHAL_FEATURE})
+    @RequiresFlagsEnabled(Flags.FLAG_FACE_VHAL_FEATURE)
     public void registerAuthenticatorsLegacy_virtualOnly() throws Exception {
         initService();
         Settings.Secure.putInt(mSettingsRule.mockContentResolver(mContext),
                 Settings.Secure.BIOMETRIC_VIRTUAL_ENABLED, 1);
 
-        mFaceService.mServiceWrapper.registerAuthenticatorsLegacy(mFaceSensorConfigurations);
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL),
@@ -176,13 +175,13 @@
     }
 
     @Test
-    @RequiresFlagsEnabled({Flags.FLAG_DE_HIDL, Flags.FLAG_FACE_VHAL_FEATURE})
-    public void registerAuthenticatorsLegacy_virtualFaceOnly() throws Exception {
+    @RequiresFlagsEnabled(Flags.FLAG_FACE_VHAL_FEATURE)
+    public void registerAuthenticators_virtualFaceOnly() throws Exception {
         initService();
         Settings.Secure.putInt(mSettingsRule.mockContentResolver(mContext),
                 Settings.Secure.BIOMETRIC_FACE_VIRTUAL_ENABLED, 1);
 
-        mFaceService.mServiceWrapper.registerAuthenticatorsLegacy(mFaceSensorConfigurations);
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL),
@@ -191,13 +190,12 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
-    public void registerAuthenticatorsLegacy_virtualAlwaysWhenNoOther() throws Exception {
+    public void registerAuthenticators_virtualAlwaysWhenNoOther() throws Exception {
         mFaceSensorConfigurations = new FaceSensorConfigurations(false);
         mFaceSensorConfigurations.addAidlConfigs(new String[]{NAME_VIRTUAL});
         initService();
 
-        mFaceService.mServiceWrapper.registerAuthenticatorsLegacy(mFaceSensorConfigurations);
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL),
@@ -210,7 +208,7 @@
         FaceAuthenticateOptions faceAuthenticateOptions = new FaceAuthenticateOptions.Builder()
                 .build();
         initService();
-        mFaceService.mServiceWrapper.registerAuthenticators(List.of());
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
 
         final long operationId = 5;
@@ -230,7 +228,7 @@
                 R.string.config_keyguardComponent,
                 OP_PACKAGE_NAME);
         initService();
-        mFaceService.mServiceWrapper.registerAuthenticators(List.of());
+        mFaceService.mServiceWrapper.registerAuthenticators(mFaceSensorConfigurations);
         waitForRegistration();
         mFaceService.mServiceWrapper.detectFace(mToken, mFaceServiceReceiver,
                 faceAuthenticateOptions);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClientTest.java
index 84c3684..a556f52 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceAuthenticationClientTest.java
@@ -50,8 +50,6 @@
 import android.os.PowerManager;
 import android.os.RemoteException;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.platform.test.flag.junit.SetFlagsRule;
@@ -60,7 +58,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -137,6 +134,8 @@
     private ArgumentCaptor<Consumer<OperationContext>> mContextInjector;
     @Captor
     private ArgumentCaptor<Consumer<OperationContext>> mStartHalConsumerCaptor;
+    @Captor
+    private ArgumentCaptor<FaceAuthenticateOptions> mFaceAuthenticateOptionsCaptor;
 
     @Rule
     public final MockitoRule mockito = MockitoJUnit.rule();
@@ -159,21 +158,26 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
     public void authWithContext_v2() throws RemoteException {
         final FaceAuthenticationClient client = createClient(2);
         client.start(mCallback);
 
+        verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
+                mStartHalConsumerCaptor.capture(), mContextInjector.capture(),
+                mFaceAuthenticateOptionsCaptor.capture());
+
+        mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor.getValue().toAidlContext(
+                mFaceAuthenticateOptionsCaptor.getValue()));
         InOrder order = inOrder(mHal, mBiometricContext);
         order.verify(mBiometricContext).updateContext(
                 mOperationContextCaptor.capture(), anyBoolean());
 
         final OperationContext aidlContext = mOperationContextCaptor.getValue().toAidlContext();
+
         order.verify(mHal).authenticateWithContext(eq(OP_ID), same(aidlContext));
         assertThat(aidlContext.wakeReason).isEqualTo(WAKE_REASON);
         assertThat(aidlContext.authenticateReason.getFaceAuthenticateReason())
                 .isEqualTo(AUTH_REASON);
-
         verify(mHal, never()).authenticate(anyLong());
     }
 
@@ -200,30 +204,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FaceAuthenticationClient client = createClient();
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).authenticateWithContext(eq(OP_ID), captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        assertThat(opContext).isSameInstanceAs(
-                mOperationContextCaptor.getValue().toAidlContext());
-        mContextInjector.getValue().accept(opContext);
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FaceAuthenticationClient client = createClient();
         client.start(mCallback);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceDetectClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceDetectClientTest.java
index e626f73..fd3f054 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceDetectClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceDetectClientTest.java
@@ -20,7 +20,6 @@
 
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
-import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.same;
 import static org.mockito.Mockito.verify;
@@ -37,8 +36,6 @@
 import android.os.RemoteException;
 import android.os.Vibrator;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.testing.TestableContext;
@@ -46,7 +43,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -58,7 +54,6 @@
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
-import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
@@ -124,49 +119,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void detectWithContext_v2() throws RemoteException {
-        final FaceDetectClient client = createClient(2);
-        client.start(mCallback);
-
-        InOrder order = inOrder(mHal, mBiometricContext);
-        order.verify(mBiometricContext).updateContext(
-                mOperationContextCaptor.capture(), anyBoolean());
-
-        final OperationContext aidlContext = mOperationContextCaptor.getValue().toAidlContext();
-        order.verify(mHal).detectInteractionWithContext(same(aidlContext));
-        assertThat(aidlContext.wakeReason).isEqualTo(WAKE_REASON);
-        assertThat(aidlContext.authenticateReason.getFaceAuthenticateReason())
-                .isEqualTo(AUTH_REASON);
-
-        verify(mHal, never()).detectInteraction();
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FaceDetectClient client = createClient();
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).detectInteractionWithContext(captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        assertThat(opContext).isSameInstanceAs(
-                mOperationContextCaptor.getValue().toAidlContext());
-        mContextInjector.getValue().accept(opContext);
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FaceDetectClient client = createClient();
         client.start(mCallback);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClientTest.java
index 02363cd..d6b5789 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceEnrollClientTest.java
@@ -24,7 +24,6 @@
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.same;
 import static org.mockito.Mockito.verify;
@@ -38,8 +37,6 @@
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.testing.TestableContext;
@@ -47,7 +44,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -60,7 +56,6 @@
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
-import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
@@ -124,45 +119,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void enrollWithContext_v2() throws RemoteException {
-        final FaceEnrollClient client = createClient(2);
-        client.start(mCallback);
-
-        InOrder order = inOrder(mHal, mBiometricContext);
-        order.verify(mBiometricContext).updateContext(
-                mOperationContextCaptor.capture(), anyBoolean());
-
-        final OperationContext aidlContext = mOperationContextCaptor.getValue().toAidlContext();
-        order.verify(mHal).enrollWithContext(any(), anyByte(), any(), any(), same(aidlContext));
-        verify(mHal, never()).enroll(any(), anyByte(), any(), any());
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FaceEnrollClient client = createClient(3);
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).enrollWithContext(any(), anyByte(), any(), any(), captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        assertThat(opContext).isSameInstanceAs(
-                mOperationContextCaptor.getValue().toAidlContext());
-        mContextInjector.getValue().accept(opContext);
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FaceEnrollClient client = createClient(3);
         client.start(mCallback);
@@ -192,16 +148,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void enrollWithFaceOptions() throws RemoteException {
-        final FaceEnrollClient client = createClient(4);
-        client.start(mCallback);
-
-        verify(mHal).enrollWithOptions(any());
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void enrollWithFaceOptionsAfterSubscribingContext() throws RemoteException {
         final FaceEnrollClient client = createClient(4);
         client.start(mCallback);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceProviderTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceProviderTest.java
index 9eca93e..c4e51f8 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceProviderTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/FaceProviderTest.java
@@ -44,22 +44,18 @@
 import android.hardware.face.HidlFaceSensorConfig;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
 import android.os.UserManager;
 import android.os.test.TestLooper;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 
-import androidx.test.InstrumentationRegistry;
 import androidx.test.filters.SmallTest;
 
 import com.android.internal.R;
 import com.android.server.biometrics.BiometricHandlerProvider;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.sensors.AuthSessionCoordinator;
 import com.android.server.biometrics.sensors.AuthenticationStateListeners;
@@ -134,13 +130,8 @@
         when(mBiometricHandlerProvider.getBiometricCallbackHandler()).thenReturn(
                 mBiometricCallbackHandler);
         when(mBiometricContext.getAuthSessionCoordinator()).thenReturn(mAuthSessionCoordinator);
-        if (Flags.deHidl()) {
-            when(mBiometricHandlerProvider.getFaceHandler()).thenReturn(new Handler(
-                    mLooper.getLooper()));
-        } else {
-            when(mBiometricHandlerProvider.getFaceHandler()).thenReturn(new Handler(
-                    Looper.getMainLooper()));
-        }
+        when(mBiometricHandlerProvider.getFaceHandler()).thenReturn(new Handler(
+                mLooper.getLooper()));
 
         final SensorProps sensor1 = new SensorProps();
         sensor1.commonProps = new CommonProps();
@@ -176,7 +167,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testAddingHidlSensors() {
         when(mResources.getIntArray(anyInt())).thenReturn(new int[]{});
         when(mResources.getBoolean(anyInt())).thenReturn(false);
@@ -247,7 +237,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testAuthenticateCallbackHandler() {
         waitForIdle();
 
@@ -295,10 +284,6 @@
     }
 
     private void waitForIdle() {
-        if (Flags.deHidl()) {
-            mLooper.dispatchAll();
-        } else {
-            InstrumentationRegistry.getInstrumentation().waitForIdleSync();
-        }
+        mLooper.dispatchAll();
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/SensorTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/SensorTest.java
index fe9cd43..6780e60 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/SensorTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/aidl/SensorTest.java
@@ -41,7 +41,6 @@
 
 import androidx.test.filters.SmallTest;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.sensors.AuthSessionCoordinator;
@@ -50,7 +49,6 @@
 import com.android.server.biometrics.sensors.LockoutCache;
 import com.android.server.biometrics.sensors.LockoutResetDispatcher;
 import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.UserAwareBiometricScheduler;
 import com.android.server.biometrics.sensors.UserSwitchProvider;
 
 import org.junit.Before;
@@ -75,12 +73,8 @@
     @Mock
     private ISession mSession;
     @Mock
-    private UserAwareBiometricScheduler.UserSwitchCallback mUserSwitchCallback;
-    @Mock
     private UserSwitchProvider<IFace, ISession> mUserSwitchProvider;
     @Mock
-    private AidlResponseHandler.HardwareUnavailableCallback mHardwareUnavailableCallback;
-    @Mock
     private LockoutResetDispatcher mLockoutResetDispatcher;
     @Mock
     private BiometricLogger mBiometricLogger;
@@ -94,6 +88,8 @@
     private BaseClientMonitor mClientMonitor;
     @Mock
     private AidlSession mCurrentSession;
+    @Mock
+    private AidlResponseHandler.AidlResponseHandlerCallback mAidlResponseHandlerCallback;
 
     private final TestLooper mLooper = new TestLooper();
     private final LockoutCache mLockoutCache = new LockoutCache();
@@ -108,27 +104,17 @@
         when(mContext.getSystemService(Context.BIOMETRIC_SERVICE)).thenReturn(mBiometricService);
         when(mBiometricContext.getAuthSessionCoordinator()).thenReturn(mAuthSessionCoordinator);
 
-        if (Flags.deHidl()) {
-            mScheduler = new BiometricScheduler<>(
-                    new Handler(mLooper.getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_FACE,
-                    null /* gestureAvailabilityDispatcher */,
-                    mBiometricService,
-                    2 /* recentOperationsLimit */,
-                    () -> USER_ID,
-                    mUserSwitchProvider);
-        } else {
-            mScheduler = new UserAwareBiometricScheduler<>(TAG,
-                    new Handler(mLooper.getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_FACE,
-                    null /* gestureAvailabilityDispatcher */,
-                    mBiometricService,
-                    () -> USER_ID,
-                    mUserSwitchCallback);
-        }
+        mScheduler = new BiometricScheduler<>(
+                new Handler(mLooper.getLooper()),
+                BiometricScheduler.SENSOR_TYPE_FACE,
+                null /* gestureAvailabilityDispatcher */,
+                mBiometricService,
+                2 /* recentOperationsLimit */,
+                () -> USER_ID,
+                mUserSwitchProvider);
         mHalCallback = new AidlResponseHandler(mContext, mScheduler, SENSOR_ID, USER_ID,
                 mLockoutCache, mLockoutResetDispatcher, mAuthSessionCoordinator,
-                mHardwareUnavailableCallback);
+                mAidlResponseHandlerCallback);
     }
 
     @Test
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/Face10Test.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/Face10Test.java
deleted file mode 100644
index 949d6ee..0000000
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/Face10Test.java
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import static junit.framework.Assert.assertEquals;
-
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.isA;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.content.res.Resources;
-import android.hardware.biometrics.ComponentInfoInternal;
-import android.hardware.biometrics.SensorProperties;
-import android.hardware.face.FaceSensorProperties;
-import android.hardware.face.FaceSensorPropertiesInternal;
-import android.hardware.face.IFaceServiceReceiver;
-import android.os.Binder;
-import android.os.Handler;
-import android.os.IBinder;
-import android.os.Looper;
-import android.os.UserManager;
-import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.flag.junit.CheckFlagsRule;
-import android.platform.test.flag.junit.DeviceFlagsValueProvider;
-
-import androidx.test.InstrumentationRegistry;
-import androidx.test.filters.SmallTest;
-
-import com.android.internal.R;
-import com.android.server.biometrics.Flags;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BiometricScheduler;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.LockoutResetDispatcher;
-
-import org.junit.Before;
-import org.junit.Rule;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-
-import java.time.Clock;
-import java.time.Instant;
-import java.time.ZoneId;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.stream.IntStream;
-
-@Presubmit
-@SmallTest
-public class Face10Test {
-
-    private static final String TAG = "Face10Test";
-    private static final int SENSOR_ID = 1;
-    private static final int USER_ID = 20;
-    private static final float FRR_THRESHOLD = 0.2f;
-
-    @Rule
-    public final CheckFlagsRule mCheckFlagsRule =
-            DeviceFlagsValueProvider.createCheckFlagsRule();
-
-    @Mock
-    private Context mContext;
-    @Mock
-    private UserManager mUserManager;
-    @Mock
-    private Resources mResources;
-    @Mock
-    private BiometricScheduler mScheduler;
-    @Mock
-    private BiometricContext mBiometricContext;
-    @Mock
-    private BiometricStateCallback mBiometricStateCallback;
-    @Mock
-    private AuthenticationStateListeners mAuthenticationStateListeners;
-
-    private final Handler mHandler = new Handler(Looper.getMainLooper());
-    private LockoutResetDispatcher mLockoutResetDispatcher;
-    private com.android.server.biometrics.sensors.face.hidl.Face10 mFace10;
-    private IBinder mBinder;
-
-    private static void waitForIdle() {
-        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
-    }
-
-    @Before
-    public void setUp() {
-        MockitoAnnotations.initMocks(this);
-
-        when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);
-        when(mUserManager.getAliveUsers()).thenReturn(new ArrayList<>());
-
-        when(mContext.getResources()).thenReturn(mResources);
-        when(mResources.getFraction(R.fraction.config_biometricNotificationFrrThreshold, 1, 1))
-                .thenReturn(FRR_THRESHOLD);
-
-        mLockoutResetDispatcher = new LockoutResetDispatcher(mContext);
-
-        final int maxEnrollmentsPerUser = 1;
-        final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
-        final boolean supportsFaceDetection = false;
-        final boolean supportsSelfIllumination = false;
-        final boolean resetLockoutRequiresChallenge = false;
-        final FaceSensorPropertiesInternal sensorProps = new FaceSensorPropertiesInternal(SENSOR_ID,
-                SensorProperties.STRENGTH_STRONG, maxEnrollmentsPerUser, componentInfo,
-                FaceSensorProperties.TYPE_UNKNOWN, supportsFaceDetection, supportsSelfIllumination,
-                resetLockoutRequiresChallenge);
-
-        Face10.sSystemClock = Clock.fixed(
-                Instant.ofEpochMilli(100), ZoneId.of("America/Los_Angeles"));
-        mFace10 = new Face10(mContext, mBiometricStateCallback, mAuthenticationStateListeners,
-                sensorProps, mLockoutResetDispatcher, mHandler, mScheduler, mBiometricContext);
-        mBinder = new Binder();
-    }
-
-    private void tick(long seconds) {
-        waitForIdle();
-        Face10.sSystemClock = Clock.fixed(Instant.ofEpochSecond(
-                Face10.sSystemClock.instant().getEpochSecond() + seconds),
-                ZoneId.of("America/Los_Angeles"));
-    }
-
-    @Test
-    public void getAuthenticatorId_doesNotCrashWhenIdNotFound() {
-        assertEquals(0, mFace10.getAuthenticatorId(0 /* sensorId */, 111 /* userId */));
-        waitForIdle();
-    }
-
-    @Test
-    public void scheduleRevokeChallenge_doesNotCrash() {
-        mFace10.scheduleRevokeChallenge(0 /* sensorId */, 0 /* userId */, mBinder, TAG,
-                0 /* challenge */);
-        waitForIdle();
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void scheduleGenerateChallenge_cachesResult() {
-        final IFaceServiceReceiver[] mocks = IntStream.range(0, 3)
-                .mapToObj(i -> mock(IFaceServiceReceiver.class))
-                .toArray(IFaceServiceReceiver[]::new);
-        for (IFaceServiceReceiver mock : mocks) {
-            mFace10.scheduleGenerateChallenge(SENSOR_ID, USER_ID, mBinder, mock, TAG);
-            tick(10);
-        }
-        tick(120);
-        mFace10.scheduleGenerateChallenge(
-                SENSOR_ID, USER_ID, mBinder, mock(IFaceServiceReceiver.class), TAG);
-        waitForIdle();
-
-        verify(mScheduler, times(2))
-                .scheduleClientMonitor(isA(FaceGenerateChallengeClient.class), any());
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void scheduleRevokeChallenge_waitsUntilEmpty() {
-        final long challenge = 22;
-        final IFaceServiceReceiver[] mocks = IntStream.range(0, 3)
-                .mapToObj(i -> mock(IFaceServiceReceiver.class))
-                .toArray(IFaceServiceReceiver[]::new);
-        for (IFaceServiceReceiver mock : mocks) {
-            mFace10.scheduleGenerateChallenge(SENSOR_ID, USER_ID, mBinder, mock, TAG);
-            tick(10);
-        }
-        for (IFaceServiceReceiver mock : mocks) {
-            mFace10.scheduleRevokeChallenge(SENSOR_ID, USER_ID, mBinder, TAG, challenge);
-            tick(10);
-        }
-        waitForIdle();
-
-        verify(mScheduler).scheduleClientMonitor(isA(FaceRevokeChallengeClient.class), any());
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void scheduleRevokeChallenge_doesNotWaitForever() {
-        mFace10.scheduleGenerateChallenge(
-                SENSOR_ID, USER_ID, mBinder, mock(IFaceServiceReceiver.class), TAG);
-        mFace10.scheduleGenerateChallenge(
-                SENSOR_ID, USER_ID, mBinder, mock(IFaceServiceReceiver.class), TAG);
-        tick(10000);
-        mFace10.scheduleGenerateChallenge(
-                SENSOR_ID, USER_ID, mBinder, mock(IFaceServiceReceiver.class), TAG);
-        mFace10.scheduleRevokeChallenge(
-                SENSOR_ID, USER_ID, mBinder, TAG, 8 /* challenge */);
-        waitForIdle();
-
-        verify(mScheduler).scheduleClientMonitor(isA(FaceRevokeChallengeClient.class), any());
-    }
-
-    @Test
-    public void halServiceDied_resetsScheduler() {
-        // It's difficult to test the linkToDeath --> serviceDied path, so let's just invoke
-        // serviceDied directly.
-        mFace10.serviceDied(0 /* cookie */);
-        waitForIdle();
-        verify(mScheduler).reset();
-    }
-}
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClientTest.java
deleted file mode 100644
index ec08329..0000000
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/FaceGenerateChallengeClientTest.java
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (C) 2021 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.face.hidl;
-
-import static junit.framework.Assert.assertEquals;
-
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.hardware.biometrics.face.V1_0.IBiometricsFace;
-import android.hardware.biometrics.face.V1_0.OptionalUint64;
-import android.hardware.face.IFaceServiceReceiver;
-import android.os.Binder;
-import android.platform.test.annotations.Presubmit;
-
-import androidx.test.core.app.ApplicationProvider;
-import androidx.test.filters.SmallTest;
-
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.log.BiometricLogger;
-import com.android.server.biometrics.sensors.ClientMonitorCallback;
-import com.android.server.biometrics.sensors.ClientMonitorCallbackConverter;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-
-@Presubmit
-@SmallTest
-public class FaceGenerateChallengeClientTest {
-
-    private static final String TAG = "FaceGenerateChallengeClientTest";
-    private static final int USER_ID = 2;
-    private static final int SENSOR_ID = 4;
-    private static final long START_TIME = 5000;
-    private static final long CHALLENGE = 200;
-
-    private final Context mContext = ApplicationProvider.getApplicationContext();
-
-    @Mock
-    private IBiometricsFace mIBiometricsFace;
-    @Mock
-    private IFaceServiceReceiver mClientReceiver;
-    @Mock
-    private IFaceServiceReceiver mOtherReceiver;
-    @Mock
-    private ClientMonitorCallback mMonitorCallback;
-    @Mock
-    private BiometricLogger mBiometricLogger;
-    @Mock
-    private BiometricContext mBiometricContext;
-
-    private FaceGenerateChallengeClient mClient;
-
-    @Before
-    public void setup() throws Exception {
-        MockitoAnnotations.initMocks(this);
-
-        final OptionalUint64 challenge = new OptionalUint64();
-        challenge.value = CHALLENGE;
-        when(mIBiometricsFace.generateChallenge(anyInt())).thenReturn(challenge);
-
-        mClient = new FaceGenerateChallengeClient(mContext, () -> mIBiometricsFace, new Binder(),
-                new ClientMonitorCallbackConverter(mClientReceiver), USER_ID,
-                TAG, SENSOR_ID, mBiometricLogger, mBiometricContext , START_TIME);
-    }
-
-    @Test
-    public void getCreatedAt() {
-        assertEquals(START_TIME, mClient.getCreatedAt());
-    }
-
-    @Test
-    public void reuseResult_whenNotReady() throws Exception {
-        mClient.reuseResult(mOtherReceiver);
-        verify(mOtherReceiver, never()).onChallengeGenerated(anyInt(), anyInt(), anyInt());
-    }
-
-    @Test
-    public void reuseResult_whenReady() throws Exception {
-        mClient.start(mMonitorCallback);
-        mClient.reuseResult(mOtherReceiver);
-        verify(mOtherReceiver).onChallengeGenerated(eq(SENSOR_ID), eq(USER_ID), eq(CHALLENGE));
-    }
-
-    @Test
-    public void reuseResult_whenReallyReady() throws Exception {
-        mClient.reuseResult(mOtherReceiver);
-        mClient.start(mMonitorCallback);
-        verify(mOtherReceiver).onChallengeGenerated(eq(SENSOR_ID), eq(USER_ID), eq(CHALLENGE));
-    }
-}
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapterTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapterTest.java
index b5d73d2..44da431 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapterTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/face/hidl/HidlToAidlSessionAdapterTest.java
@@ -16,8 +16,8 @@
 
 package com.android.server.biometrics.sensors.face.hidl;
 
-import static com.android.server.biometrics.sensors.face.hidl.FaceGenerateChallengeClient.CHALLENGE_TIMEOUT_SEC;
 import static com.android.server.biometrics.sensors.face.hidl.HidlToAidlSessionAdapter.ENROLL_TIMEOUT_SEC;
+import static com.android.server.biometrics.sensors.face.hidl.HidlToAidlSessionAdapter.CHALLENGE_TIMEOUT_SEC;
 
 import static com.google.common.truth.Truth.assertThat;
 
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/FingerprintServiceTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/FingerprintServiceTest.java
index 9a8cd48..6126af5 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/FingerprintServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/FingerprintServiceTest.java
@@ -51,7 +51,6 @@
 import android.os.Binder;
 import android.os.IBinder;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.provider.Settings;
@@ -64,7 +63,6 @@
 import com.android.internal.util.test.FakeSettingsProvider;
 import com.android.internal.util.test.FakeSettingsProviderRule;
 import com.android.server.LocalServices;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.sensors.fingerprint.aidl.FingerprintProvider;
 import com.android.server.companion.virtual.VirtualDeviceManagerInternal;
@@ -90,8 +88,6 @@
     private static final int ID_VIRTUAL = 6;
     private static final String NAME_DEFAULT = "default";
     private static final String NAME_VIRTUAL = "virtual";
-    private static final List<FingerprintSensorPropertiesInternal> HIDL_AUTHENTICATORS =
-            List.of();
     private static final String OP_PACKAGE_NAME = "FingerprintServiceTest/SystemUi";
 
     @Rule
@@ -185,7 +181,7 @@
 
     private void initServiceWithAndWait(String... aidlInstances) throws Exception {
         initServiceWith(aidlInstances);
-        mService.mServiceWrapper.registerAuthenticators(HIDL_AUTHENTICATORS);
+        mService.mServiceWrapper.registerAuthenticators(mFingerprintSensorConfigurations);
         waitForRegistration();
     }
 
@@ -193,18 +189,7 @@
     public void registerAuthenticators_defaultOnly() throws Exception {
         initServiceWith(NAME_DEFAULT, NAME_VIRTUAL);
 
-        mService.mServiceWrapper.registerAuthenticators(HIDL_AUTHENTICATORS);
-        waitForRegistration();
-
-        verify(mIBiometricService).registerAuthenticator(eq(ID_DEFAULT), anyInt(), anyInt(), any());
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
-    public void registerAuthenticatorsLegacy_defaultOnly() throws Exception {
-        initServiceWith(NAME_DEFAULT, NAME_VIRTUAL);
-
-        mService.mServiceWrapper.registerAuthenticatorsLegacy(mFingerprintSensorConfigurations);
+        mService.mServiceWrapper.registerAuthenticators(mFingerprintSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_DEFAULT), anyInt(), anyInt(), any());
@@ -216,7 +201,7 @@
         Settings.Secure.putInt(mSettingsRule.mockContentResolver(mContext),
                 Settings.Secure.BIOMETRIC_VIRTUAL_ENABLED, 1);
 
-        mService.mServiceWrapper.registerAuthenticators(HIDL_AUTHENTICATORS);
+        mService.mServiceWrapper.registerAuthenticators(mFingerprintSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL), anyInt(), anyInt(), any());
@@ -228,20 +213,7 @@
         Settings.Secure.putInt(mSettingsRule.mockContentResolver(mContext),
                 Settings.Secure.BIOMETRIC_FINGERPRINT_VIRTUAL_ENABLED, 1);
 
-        mService.mServiceWrapper.registerAuthenticators(HIDL_AUTHENTICATORS);
-        waitForRegistration();
-
-        verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL), anyInt(), anyInt(), any());
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
-    public void registerAuthenticatorsLegacy_virtualOnly() throws Exception {
-        initServiceWith(NAME_DEFAULT, NAME_VIRTUAL);
-        Settings.Secure.putInt(mSettingsRule.mockContentResolver(mContext),
-                Settings.Secure.BIOMETRIC_VIRTUAL_ENABLED, 1);
-
-        mService.mServiceWrapper.registerAuthenticatorsLegacy(mFingerprintSensorConfigurations);
+        mService.mServiceWrapper.registerAuthenticators(mFingerprintSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL), anyInt(), anyInt(), any());
@@ -249,23 +221,12 @@
 
     @Test
     public void registerAuthenticators_virtualAlwaysWhenNoOther() throws Exception {
-        initServiceWith(NAME_VIRTUAL);
-
-        mService.mServiceWrapper.registerAuthenticators(HIDL_AUTHENTICATORS);
-        waitForRegistration();
-
-        verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL), anyInt(), anyInt(), any());
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
-    public void registerAuthenticatorsLegacy_virtualAlwaysWhenNoOther() throws Exception {
         mFingerprintSensorConfigurations =
                 new FingerprintSensorConfigurations(true);
         mFingerprintSensorConfigurations.addAidlSensors(new String[]{NAME_VIRTUAL});
         initServiceWith(NAME_VIRTUAL);
 
-        mService.mServiceWrapper.registerAuthenticatorsLegacy(mFingerprintSensorConfigurations);
+        mService.mServiceWrapper.registerAuthenticators(mFingerprintSensorConfigurations);
         waitForRegistration();
 
         verify(mIBiometricService).registerAuthenticator(eq(ID_VIRTUAL), anyInt(), anyInt(), any());
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClientTest.java
index 7a77392..db9fe7f 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintAuthenticationClientTest.java
@@ -30,7 +30,6 @@
 import static org.mockito.Mockito.anyInt;
 import static org.mockito.Mockito.anyLong;
 import static org.mockito.Mockito.eq;
-import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.same;
@@ -42,7 +41,6 @@
 import android.app.ActivityTaskManager;
 import android.content.ComponentName;
 import android.hardware.biometrics.BiometricManager;
-import android.hardware.biometrics.common.AuthenticateReason;
 import android.hardware.biometrics.common.ICancellationSignal;
 import android.hardware.biometrics.common.OperationContext;
 import android.hardware.biometrics.fingerprint.ISession;
@@ -52,13 +50,10 @@
 import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
 import android.hardware.fingerprint.ISidefpsController;
 import android.hardware.fingerprint.IUdfpsOverlayController;
-import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.test.TestLooper;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.platform.test.flag.junit.SetFlagsRule;
@@ -67,7 +62,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.CallbackWithProbe;
@@ -84,7 +78,6 @@
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
-import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
@@ -180,36 +173,18 @@
     public void authNoContext_v1() throws RemoteException {
         final FingerprintAuthenticationClient client = createClient(1);
         client.start(mCallback);
-        if (Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
-                    mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
-            mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
-                    .getValue().toAidlContext());
-        }
+
+        verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
+                mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
+
+        mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
+                .getValue().toAidlContext());
 
         verify(mHal).authenticate(eq(OP_ID));
         verify(mHal, never()).authenticateWithContext(anyLong(), any());
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void authWithContext_v2() throws RemoteException {
-        final FingerprintAuthenticationClient client = createClient(2);
-        client.start(mCallback);
-
-        InOrder order = inOrder(mHal, mBiometricContext);
-        order.verify(mBiometricContext).updateContext(
-                mOperationContextCaptor.capture(), anyBoolean());
-
-        final OperationContext aidlContext = mOperationContextCaptor.getValue().toAidlContext();
-        order.verify(mHal).authenticateWithContext(eq(OP_ID), same(aidlContext));
-        assertThat(aidlContext.authenticateReason.getFingerprintAuthenticateReason())
-                .isEqualTo(AuthenticateReason.Fingerprint.UNKNOWN);
-
-        verify(mHal, never()).authenticate(anyLong());
-    }
-
-    @Test
     public void pointerUp_v1() throws RemoteException {
         final FingerprintAuthenticationClient client = createClient(1);
         client.start(mCallback);
@@ -277,21 +252,18 @@
 
         final FingerprintAuthenticationClient client = createClient();
         client.start(mCallback);
-        if (Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
-                    mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
-            mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
-                    .getValue().toAidlContext());
-        }
+
+        verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
+                mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
+
+        mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
+                .getValue().toAidlContext());
 
         final ArgumentCaptor<OperationContext> captor =
                 ArgumentCaptor.forClass(OperationContext.class);
         verify(mHal).authenticateWithContext(eq(OP_ID), captor.capture());
         OperationContext opContext = captor.getValue();
-        if (!Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(
-                    mOperationContextCaptor.capture(), mContextInjector.capture());
-        }
+
         assertThat(mOperationContextCaptor.getValue().toAidlContext())
                 .isSameInstanceAs(opContext);
 
@@ -326,12 +298,12 @@
         when(mBiometricContext.isAod()).thenReturn(false);
         final FingerprintAuthenticationClient client = createClient();
         client.start(mCallback);
-        if (Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
-                    mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
-            mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
-                    .getValue().toAidlContext());
-        }
+
+        verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
+                mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
+
+        mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
+                .getValue().toAidlContext());
 
         verify(mLuxProbe, isAwake ? times(1) : never()).enable();
     }
@@ -342,21 +314,18 @@
         when(mBiometricContext.isAod()).thenReturn(true);
         final FingerprintAuthenticationClient client = createClient();
         client.start(mCallback);
-        if (Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
-                    mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
-            mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
-                    .getValue().toAidlContext());
-        }
+
+        verify(mBiometricContext).subscribe(mOperationContextCaptor.capture(),
+                mStartHalConsumerCaptor.capture(), mContextInjector.capture(), any());
+
+        mStartHalConsumerCaptor.getValue().accept(mOperationContextCaptor
+                .getValue().toAidlContext());
 
         final ArgumentCaptor<OperationContext> captor =
                 ArgumentCaptor.forClass(OperationContext.class);
         verify(mHal).authenticateWithContext(eq(OP_ID), captor.capture());
         OperationContext opContext = captor.getValue();
-        if (!Flags.deHidl()) {
-            verify(mBiometricContext).subscribe(
-                    mOperationContextCaptor.capture(), mContextInjector.capture());
-        }
+
         assertThat(opContext).isSameInstanceAs(
                 mOperationContextCaptor.getValue().toAidlContext());
 
@@ -380,30 +349,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FingerprintAuthenticationClient client = createClient();
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).authenticateWithContext(eq(OP_ID), captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        assertThat(opContext).isSameInstanceAs(
-                mOperationContextCaptor.getValue().toAidlContext());
-        mContextInjector.getValue().accept(opContext);
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FingerprintAuthenticationClient client = createClient();
         client.start(mCallback);
@@ -603,7 +548,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testLockoutTracker_authFailed() throws RemoteException {
         final FingerprintAuthenticationClient client = createClient(1 /* version */,
                 true /* allowBackgroundAuthentication */, mClientMonitorCallbackConverter,
@@ -658,8 +602,7 @@
                 null /* taskStackListener */,
                 mUdfpsOverlayController, mSideFpsController, mAuthenticationStateListeners,
                 allowBackgroundAuthentication,
-                mSensorProps,
-                new Handler(mLooper.getLooper()), 0 /* biometricStrength */, mClock,
+                mSensorProps, 0 /* biometricStrength */,
                 lockoutTracker) {
             @Override
             protected ActivityTaskManager getActivityTaskManager() {
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClientTest.java
index 9edb8dd..6b8c3cd 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintDetectClientTest.java
@@ -21,13 +21,11 @@
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.same;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import android.hardware.biometrics.common.AuthenticateReason;
 import android.hardware.biometrics.common.OperationContext;
 import android.hardware.biometrics.fingerprint.ISession;
 import android.hardware.fingerprint.FingerprintAuthenticateOptions;
@@ -35,8 +33,6 @@
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.testing.TestableContext;
@@ -44,7 +40,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.OperationContextExt;
@@ -56,7 +51,6 @@
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
-import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
@@ -119,49 +113,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void detectNoContext_v2() throws RemoteException {
-        final FingerprintDetectClient client = createClient(2);
-
-        client.start(mCallback);
-
-        InOrder order = inOrder(mHal, mBiometricContext);
-        order.verify(mBiometricContext).updateContext(
-                mOperationContextCaptor.capture(), anyBoolean());
-
-        final OperationContext aidlContext = mOperationContextCaptor.getValue().toAidlContext();
-        order.verify(mHal).detectInteractionWithContext(same(aidlContext));
-        assertThat(aidlContext.authenticateReason.getFingerprintAuthenticateReason())
-                .isEqualTo(AuthenticateReason.Fingerprint.UNKNOWN);
-
-        verify(mHal, never()).detectInteraction();
-    }
-
-    @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FingerprintDetectClient client = createClient();
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).detectInteractionWithContext(captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        assertThat(opContext).isSameInstanceAs(
-                mOperationContextCaptor.getValue().toAidlContext());
-        mContextInjector.getValue().accept(opContext);
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FingerprintDetectClient client = createClient();
         client.start(mCallback);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClientTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClientTest.java
index 916f696..d2e1c3c 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClientTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintEnrollClientTest.java
@@ -24,7 +24,6 @@
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.same;
 import static org.mockito.Mockito.times;
@@ -44,8 +43,6 @@
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsDisabled;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.platform.test.flag.junit.SetFlagsRule;
@@ -54,7 +51,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.platform.app.InstrumentationRegistry;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.log.CallbackWithProbe;
@@ -70,7 +66,6 @@
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
-import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnit;
 import org.mockito.junit.MockitoRule;
@@ -156,21 +151,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void enrollWithContext_v2() throws RemoteException {
-        final FingerprintEnrollClient client = createClient(2);
-
-        client.start(mCallback);
-
-        InOrder order = inOrder(mHal, mBiometricContext);
-        order.verify(mBiometricContext).updateContext(
-                mOperationContextCaptor.capture(), anyBoolean());
-        order.verify(mHal).enrollWithContext(any(),
-                same(mOperationContextCaptor.getValue().toAidlContext()));
-        verify(mHal, never()).enroll(any());
-    }
-
-    @Test
     public void pointerUp_v1() throws RemoteException {
         final FingerprintEnrollClient client = createClient(1);
         client.start(mCallback);
@@ -253,29 +233,6 @@
     }
 
     @Test
-    @RequiresFlagsDisabled(Flags.FLAG_DE_HIDL)
-    public void notifyHalWhenContextChanges() throws RemoteException {
-        final FingerprintEnrollClient client = createClient();
-        client.start(mCallback);
-
-        final ArgumentCaptor<OperationContext> captor =
-                ArgumentCaptor.forClass(OperationContext.class);
-        verify(mHal).enrollWithContext(any(), captor.capture());
-        OperationContext opContext = captor.getValue();
-
-        // fake an update to the context
-        verify(mBiometricContext).subscribe(
-                mOperationContextCaptor.capture(), mContextInjector.capture());
-        mContextInjector.getValue().accept(
-                mOperationContextCaptor.getValue().toAidlContext());
-        verify(mHal).onContextChanged(same(opContext));
-
-        client.stopHalOperation();
-        verify(mBiometricContext).unsubscribe(same(mOperationContextCaptor.getValue()));
-    }
-
-    @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void subscribeContextAndStartHal() throws RemoteException {
         final FingerprintEnrollClient client = createClient();
         client.start(mCallback);
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProviderTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProviderTest.java
index 0a35037..1f288b2 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProviderTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/FingerprintProviderTest.java
@@ -47,21 +47,17 @@
 import android.hardware.fingerprint.HidlFingerprintSensorConfig;
 import android.os.Handler;
 import android.os.IBinder;
-import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
 import android.os.UserManager;
 import android.os.test.TestLooper;
 import android.platform.test.annotations.Presubmit;
-import android.platform.test.annotations.RequiresFlagsEnabled;
 import android.platform.test.flag.junit.CheckFlagsRule;
 import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 
-import androidx.test.InstrumentationRegistry;
 import androidx.test.filters.SmallTest;
 
 import com.android.server.biometrics.BiometricHandlerProvider;
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.sensors.AuthSessionCoordinator;
 import com.android.server.biometrics.sensors.AuthenticationStateListeners;
@@ -136,13 +132,8 @@
         when(mBiometricContext.getAuthSessionCoordinator()).thenReturn(mAuthSessionCoordinator);
         when(mBiometricHandlerProvider.getBiometricCallbackHandler()).thenReturn(
                 mBiometricCallbackHandler);
-        if (Flags.deHidl()) {
-            when(mBiometricHandlerProvider.getFingerprintHandler()).thenReturn(
-                    new Handler(mLooper.getLooper()));
-        } else {
-            when(mBiometricHandlerProvider.getFingerprintHandler()).thenReturn(
-                    new Handler(Looper.getMainLooper()));
-        }
+        when(mBiometricHandlerProvider.getFingerprintHandler()).thenReturn(
+                new Handler(mLooper.getLooper()));
 
         final SensorProps sensor1 = new SensorProps();
         sensor1.commonProps = new CommonProps();
@@ -176,7 +167,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testAddingHidlSensors() {
         when(mResources.getIntArray(anyInt())).thenReturn(new int[]{});
         when(mResources.getBoolean(anyInt())).thenReturn(false);
@@ -252,7 +242,6 @@
     }
 
     @Test
-    @RequiresFlagsEnabled(Flags.FLAG_DE_HIDL)
     public void testScheduleAuthenticate() {
         waitForIdle();
 
@@ -302,10 +291,6 @@
     }
 
     private void waitForIdle() {
-        if (Flags.deHidl()) {
-            mLooper.dispatchAll();
-        } else {
-            InstrumentationRegistry.getInstrumentation().waitForIdleSync();
-        }
+        mLooper.dispatchAll();
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/SensorTest.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/SensorTest.java
index b4c2ee8..698db2e 100644
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/SensorTest.java
+++ b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/aidl/SensorTest.java
@@ -42,7 +42,6 @@
 
 import androidx.test.filters.SmallTest;
 
-import com.android.server.biometrics.Flags;
 import com.android.server.biometrics.log.BiometricContext;
 import com.android.server.biometrics.log.BiometricLogger;
 import com.android.server.biometrics.sensors.AuthSessionCoordinator;
@@ -51,7 +50,6 @@
 import com.android.server.biometrics.sensors.LockoutCache;
 import com.android.server.biometrics.sensors.LockoutResetDispatcher;
 import com.android.server.biometrics.sensors.LockoutTracker;
-import com.android.server.biometrics.sensors.UserAwareBiometricScheduler;
 import com.android.server.biometrics.sensors.UserSwitchProvider;
 import com.android.server.biometrics.sensors.fingerprint.GestureAvailabilityDispatcher;
 
@@ -77,12 +75,8 @@
     @Mock
     private ISession mSession;
     @Mock
-    private UserAwareBiometricScheduler.UserSwitchCallback mUserSwitchCallback;
-    @Mock
     private UserSwitchProvider<IFingerprint, ISession> mUserSwitchProvider;
     @Mock
-    private AidlResponseHandler.HardwareUnavailableCallback mHardwareUnavailableCallback;
-    @Mock
     private LockoutResetDispatcher mLockoutResetDispatcher;
     @Mock
     private BiometricLogger mLogger;
@@ -100,6 +94,8 @@
     private BaseClientMonitor mClientMonitor;
     @Mock
     private HandlerThread mThread;
+    @Mock
+    AidlResponseHandler.AidlResponseHandlerCallback mAidlResponseHandlerCallback;
 
     private final TestLooper mLooper = new TestLooper();
     private final LockoutCache mLockoutCache = new LockoutCache();
@@ -115,27 +111,17 @@
         when(mBiometricContext.getAuthSessionCoordinator()).thenReturn(mAuthSessionCoordinator);
         when(mThread.getLooper()).thenReturn(mLooper.getLooper());
 
-        if (Flags.deHidl()) {
-            mScheduler = new BiometricScheduler<>(
-                    new Handler(mLooper.getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_FP_OTHER,
-                    null /* gestureAvailabilityDispatcher */,
-                    mBiometricService,
-                    2 /* recentOperationsLimit */,
-                    () -> USER_ID,
-                    mUserSwitchProvider);
-        } else {
-            mScheduler = new UserAwareBiometricScheduler<>(TAG,
-                    new Handler(mLooper.getLooper()),
-                    BiometricScheduler.SENSOR_TYPE_FP_OTHER,
-                    null /* gestureAvailabilityDispatcher */,
-                    mBiometricService,
-                    () -> USER_ID,
-                    mUserSwitchCallback);
-        }
+        mScheduler = new BiometricScheduler<>(
+                new Handler(mLooper.getLooper()),
+                BiometricScheduler.SENSOR_TYPE_FP_OTHER,
+                null /* gestureAvailabilityDispatcher */,
+                mBiometricService,
+                2 /* recentOperationsLimit */,
+                () -> USER_ID,
+                mUserSwitchProvider);
         mHalCallback = new AidlResponseHandler(mContext, mScheduler, SENSOR_ID, USER_ID,
                 mLockoutCache, mLockoutResetDispatcher, mAuthSessionCoordinator,
-                mHardwareUnavailableCallback);
+                mAidlResponseHandlerCallback);
     }
 
     @Test
diff --git a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21Test.java b/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21Test.java
deleted file mode 100644
index 0d3f192..0000000
--- a/services/tests/servicestests/src/com/android/server/biometrics/sensors/fingerprint/hidl/Fingerprint21Test.java
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.biometrics.sensors.fingerprint.hidl;
-
-import static junit.framework.Assert.assertEquals;
-
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-import android.content.res.Resources;
-import android.hardware.biometrics.ComponentInfoInternal;
-import android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint;
-import android.hardware.fingerprint.FingerprintSensorProperties;
-import android.hardware.fingerprint.FingerprintSensorPropertiesInternal;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.UserManager;
-import android.platform.test.annotations.Presubmit;
-
-import androidx.annotation.NonNull;
-import androidx.test.InstrumentationRegistry;
-import androidx.test.filters.SmallTest;
-
-import com.android.internal.R;
-import com.android.server.biometrics.log.BiometricContext;
-import com.android.server.biometrics.sensors.AuthenticationStateListeners;
-import com.android.server.biometrics.sensors.BiometricScheduler;
-import com.android.server.biometrics.sensors.BiometricStateCallback;
-import com.android.server.biometrics.sensors.LockoutResetDispatcher;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.mockito.Mock;
-import org.mockito.MockitoAnnotations;
-
-import java.util.ArrayList;
-import java.util.List;
-
-@Presubmit
-@SmallTest
-public class Fingerprint21Test {
-
-    private static final String TAG = "Fingerprint21Test";
-    private static final int SENSOR_ID = 1;
-
-    @Mock
-    private Context mContext;
-    @Mock
-    private Resources mResources;
-    @Mock
-    private UserManager mUserManager;
-    @Mock
-    Fingerprint21.HalResultController mHalResultController;
-    @Mock
-    private BiometricScheduler mScheduler;
-    @Mock
-    private AuthenticationStateListeners mAuthenticationStateListeners;
-    @Mock
-    private BiometricStateCallback mBiometricStateCallback;
-    @Mock
-    private BiometricContext mBiometricContext;
-
-    private LockoutResetDispatcher mLockoutResetDispatcher;
-    private Fingerprint21 mFingerprint21;
-
-    private static void waitForIdle() {
-        InstrumentationRegistry.getInstrumentation().waitForIdleSync();
-    }
-
-    @Before
-    public void setUp() {
-        MockitoAnnotations.initMocks(this);
-
-        when(mContext.getSystemService(Context.USER_SERVICE)).thenReturn(mUserManager);
-        when(mUserManager.getAliveUsers()).thenReturn(new ArrayList<>());
-        when(mContext.getResources()).thenReturn(mResources);
-        when(mResources.getInteger(eq(R.integer.config_fingerprintMaxTemplatesPerUser)))
-                .thenReturn(5);
-
-        mLockoutResetDispatcher = new LockoutResetDispatcher(mContext);
-
-        final int maxEnrollmentsPerUser = 1;
-        final List<ComponentInfoInternal> componentInfo = new ArrayList<>();
-        final boolean resetLockoutRequiresHardwareAuthToken = false;
-        final FingerprintSensorPropertiesInternal sensorProps =
-                new FingerprintSensorPropertiesInternal(SENSOR_ID,
-                        FingerprintSensorProperties.STRENGTH_WEAK, maxEnrollmentsPerUser,
-                        componentInfo, FingerprintSensorProperties.TYPE_UNKNOWN,
-                        resetLockoutRequiresHardwareAuthToken);
-
-        mFingerprint21 = new TestableFingerprint21(mContext, mBiometricStateCallback,
-                mAuthenticationStateListeners, sensorProps, mScheduler,
-                new Handler(Looper.getMainLooper()), mLockoutResetDispatcher, mHalResultController,
-                mBiometricContext);
-    }
-
-    @Test
-    public void getAuthenticatorId_doesNotCrashWhenIdNotFound() {
-        assertEquals(0, mFingerprint21.getAuthenticatorId(0 /* sensorId */, 111 /* userId */));
-        waitForIdle();
-    }
-
-    @Test
-    public void halServiceDied_resetsScheduler() {
-        // It's difficult to test the linkToDeath --> serviceDied path, so let's just invoke
-        // serviceDied directly.
-        mFingerprint21.serviceDied(0 /* cookie */);
-        waitForIdle();
-        verify(mScheduler).reset();
-    }
-
-    private static class TestableFingerprint21 extends Fingerprint21 {
-
-        TestableFingerprint21(@NonNull Context context,
-                @NonNull BiometricStateCallback biometricStateCallback,
-                @NonNull AuthenticationStateListeners authenticationStateListeners,
-                @NonNull FingerprintSensorPropertiesInternal sensorProps,
-                @NonNull BiometricScheduler scheduler, @NonNull Handler handler,
-                @NonNull LockoutResetDispatcher lockoutResetDispatcher,
-                @NonNull HalResultController controller,
-                @NonNull BiometricContext biometricContext) {
-            super(context, biometricStateCallback, authenticationStateListeners, sensorProps,
-                    scheduler, handler, lockoutResetDispatcher, controller, biometricContext);
-        }
-
-        @Override
-        synchronized IBiometricsFingerprint getDaemon() {
-            return mock(IBiometricsFingerprint.class);
-        }
-    }
-}