diff --git a/framework/Android.bp b/framework/Android.bp
index c62402d..bb93af9 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -100,6 +100,7 @@
         "//frameworks/base",
 
         // Tests using hidden APIs
+        "//cts/tests/netlegacy22.api",
         "//external/sl4a:__subpackages__",
         "//frameworks/base/tests/net:__subpackages__",
         "//frameworks/libs/net/common/testutils",
diff --git a/framework/api/module-lib-current.txt b/framework/api/module-lib-current.txt
index 9e2cd3e..c8b04a3 100644
--- a/framework/api/module-lib-current.txt
+++ b/framework/api/module-lib-current.txt
@@ -7,7 +7,7 @@
 
   public class ConnectivityManager {
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void factoryReset();
-    method @NonNull @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public java.util.List<android.net.NetworkStateSnapshot> getAllNetworkStateSnapshot();
+    method @NonNull @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public java.util.List<android.net.NetworkStateSnapshot> getAllNetworkStateSnapshots();
     method @Nullable public android.net.ProxyInfo getGlobalProxy();
     method @NonNull public static android.util.Range<java.lang.Integer> getIpSecNetIdRange();
     method @NonNull public static String getPrivateDnsMode(@NonNull android.content.Context);
diff --git a/framework/api/system-current.txt b/framework/api/system-current.txt
index 2194575..3ca7475 100644
--- a/framework/api/system-current.txt
+++ b/framework/api/system-current.txt
@@ -277,7 +277,7 @@
     method @NonNull public int[] getAdministratorUids();
     method @Nullable public static String getCapabilityCarrierName(int);
     method @Nullable public String getSsid();
-    method @NonNull public java.util.Set<java.lang.Integer> getSubIds();
+    method @NonNull public java.util.Set<java.lang.Integer> getSubscriptionIds();
     method @NonNull public int[] getTransportTypes();
     method public boolean isPrivateDnsBroken();
     method public boolean satisfiedByNetworkCapabilities(@Nullable android.net.NetworkCapabilities);
@@ -308,7 +308,7 @@
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_FACTORY) public android.net.NetworkCapabilities.Builder setRequestorUid(int);
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP) public android.net.NetworkCapabilities.Builder setSignalStrength(int);
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_FACTORY) public android.net.NetworkCapabilities.Builder setSsid(@Nullable String);
-    method @NonNull public android.net.NetworkCapabilities.Builder setSubIds(@NonNull java.util.Set<java.lang.Integer>);
+    method @NonNull public android.net.NetworkCapabilities.Builder setSubscriptionIds(@NonNull java.util.Set<java.lang.Integer>);
     method @NonNull public android.net.NetworkCapabilities.Builder setTransportInfo(@Nullable android.net.TransportInfo);
   }
 
@@ -338,7 +338,7 @@
 
   public static class NetworkRequest.Builder {
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP) public android.net.NetworkRequest.Builder setSignalStrength(int);
-    method @NonNull public android.net.NetworkRequest.Builder setSubIds(@NonNull java.util.Set<java.lang.Integer>);
+    method @NonNull public android.net.NetworkRequest.Builder setSubscriptionIds(@NonNull java.util.Set<java.lang.Integer>);
   }
 
   public final class NetworkScore implements android.os.Parcelable {
diff --git a/framework/src/android/net/ConnectivityFrameworkInitializer.java b/framework/src/android/net/ConnectivityFrameworkInitializer.java
index 92a792b..a2e218d 100644
--- a/framework/src/android/net/ConnectivityFrameworkInitializer.java
+++ b/framework/src/android/net/ConnectivityFrameworkInitializer.java
@@ -68,5 +68,11 @@
                     return cm.startOrGetTestNetworkManager();
                 }
         );
+
+        SystemServiceRegistry.registerContextAwareService(
+                DnsResolverServiceManager.DNS_RESOLVER_SERVICE,
+                DnsResolverServiceManager.class,
+                (context, serviceBinder) -> new DnsResolverServiceManager(serviceBinder)
+        );
     }
 }
diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index 96f2de6..5dfa932 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -424,6 +424,9 @@
      * Action used to display a dialog that asks the user whether to connect to a network that is
      * not validated. This intent is used to start the dialog in settings via startActivity.
      *
+     * This action includes a {@link Network} typed extra which is called
+     * {@link ConnectivityManager#EXTRA_NETWORK} that represents the network which is unvalidated.
+     *
      * @hide
      */
     @SystemApi(client = MODULE_LIBRARIES)
@@ -433,6 +436,10 @@
      * Action used to display a dialog that asks the user whether to avoid a network that is no
      * longer validated. This intent is used to start the dialog in settings via startActivity.
      *
+     * This action includes a {@link Network} typed extra which is called
+     * {@link ConnectivityManager#EXTRA_NETWORK} that represents the network which is no longer
+     * validated.
+     *
      * @hide
      */
     @SystemApi(client = MODULE_LIBRARIES)
@@ -444,6 +451,10 @@
      * that has not validated. This intent is used to start the dialog in settings via
      * startActivity.
      *
+     * This action includes a {@link Network} typed extra which is called
+     * {@link ConnectivityManager#EXTRA_NETWORK} that represents the network which has partial
+     * connectivity.
+     *
      * @hide
      */
     @SystemApi(client = MODULE_LIBRARIES)
@@ -1425,9 +1436,9 @@
             android.Manifest.permission.NETWORK_STACK,
             android.Manifest.permission.NETWORK_SETTINGS})
     @NonNull
-    public List<NetworkStateSnapshot> getAllNetworkStateSnapshot() {
+    public List<NetworkStateSnapshot> getAllNetworkStateSnapshots() {
         try {
-            return mService.getAllNetworkStateSnapshot();
+            return mService.getAllNetworkStateSnapshots();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
diff --git a/framework/src/android/net/DnsResolverServiceManager.java b/framework/src/android/net/DnsResolverServiceManager.java
new file mode 100644
index 0000000..79009e8
--- /dev/null
+++ b/framework/src/android/net/DnsResolverServiceManager.java
@@ -0,0 +1,45 @@
+/*
+ * 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 android.net;
+
+import android.annotation.NonNull;
+import android.os.IBinder;
+
+/**
+ * Provides a way to obtain the DnsResolver binder objects.
+ *
+ * @hide
+ */
+public class DnsResolverServiceManager {
+    /** Service name for the DNS resolver. Keep in sync with DnsResolverService.h */
+    public static final String DNS_RESOLVER_SERVICE = "dnsresolver";
+
+    private final IBinder mResolver;
+
+    DnsResolverServiceManager(IBinder resolver) {
+        mResolver = resolver;
+    }
+
+    /**
+     * Get an {@link IBinder} representing the DnsResolver stable AIDL interface
+     *
+     * @return {@link android.net.IDnsResolver} IBinder.
+     */
+    @NonNull
+    public IBinder getService() {
+        return mResolver;
+    }
+}
diff --git a/framework/src/android/net/IConnectivityManager.aidl b/framework/src/android/net/IConnectivityManager.aidl
index 728f375..c434bbc 100644
--- a/framework/src/android/net/IConnectivityManager.aidl
+++ b/framework/src/android/net/IConnectivityManager.aidl
@@ -82,7 +82,7 @@
     @UnsupportedAppUsage(maxTargetSdk = 30, trackingBug = 170729553)
     NetworkState[] getAllNetworkState();
 
-    List<NetworkStateSnapshot> getAllNetworkStateSnapshot();
+    List<NetworkStateSnapshot> getAllNetworkStateSnapshots();
 
     boolean isActiveNetworkMetered();
 
diff --git a/framework/src/android/net/NetworkCapabilities.java b/framework/src/android/net/NetworkCapabilities.java
index c4277c3..775c88f 100644
--- a/framework/src/android/net/NetworkCapabilities.java
+++ b/framework/src/android/net/NetworkCapabilities.java
@@ -1749,7 +1749,7 @@
         combineSSIDs(nc);
         combineRequestor(nc);
         combineAdministratorUids(nc);
-        combineSubIds(nc);
+        combineSubscriptionIds(nc);
     }
 
     /**
@@ -1771,7 +1771,7 @@
                 && (onlyImmutable || satisfiedByUids(nc))
                 && (onlyImmutable || satisfiedBySSID(nc))
                 && (onlyImmutable || satisfiedByRequestor(nc))
-                && (onlyImmutable || satisfiedBySubIds(nc)));
+                && (onlyImmutable || satisfiedBySubscriptionIds(nc)));
     }
 
     /**
@@ -1868,7 +1868,7 @@
                 && equalsPrivateDnsBroken(that)
                 && equalsRequestor(that)
                 && equalsAdministratorUids(that)
-                && equalsSubIds(that);
+                && equalsSubscriptionIds(that);
     }
 
     @Override
@@ -2346,7 +2346,7 @@
      * @hide
      */
     @NonNull
-    public NetworkCapabilities setSubIds(@NonNull Set<Integer> subIds) {
+    public NetworkCapabilities setSubscriptionIds(@NonNull Set<Integer> subIds) {
         mSubIds = new ArraySet(Objects.requireNonNull(subIds));
         return this;
     }
@@ -2362,14 +2362,14 @@
      */
     @NonNull
     @SystemApi
-    public Set<Integer> getSubIds() {
+    public Set<Integer> getSubscriptionIds() {
         return new ArraySet<>(mSubIds);
     }
 
     /**
      * Tests if the subscription ID set of this network is the same as that of the passed one.
      */
-    private boolean equalsSubIds(@NonNull NetworkCapabilities nc) {
+    private boolean equalsSubscriptionIds(@NonNull NetworkCapabilities nc) {
         return Objects.equals(mSubIds, nc.mSubIds);
     }
 
@@ -2378,7 +2378,7 @@
      * If specified in the request, the passed one need to have at least one subId and at least
      * one of them needs to be in the request set.
      */
-    private boolean satisfiedBySubIds(@NonNull NetworkCapabilities nc) {
+    private boolean satisfiedBySubscriptionIds(@NonNull NetworkCapabilities nc) {
         if (mSubIds.isEmpty()) return true;
         if (nc.mSubIds.isEmpty()) return false;
         for (final Integer subId : nc.mSubIds) {
@@ -2395,7 +2395,7 @@
      * <p>If both subscription IDs are not equal, they belong to different subscription
      * (or no subscription). In this case, it would not make sense to add them together.
      */
-    private void combineSubIds(@NonNull NetworkCapabilities nc) {
+    private void combineSubscriptionIds(@NonNull NetworkCapabilities nc) {
         if (!Objects.equals(mSubIds, nc.mSubIds)) {
             throw new IllegalStateException("Can't combine two subscription ID sets");
         }
@@ -2737,8 +2737,8 @@
          */
         @NonNull
         @SystemApi
-        public Builder setSubIds(@NonNull final Set<Integer> subIds) {
-            mCaps.setSubIds(subIds);
+        public Builder setSubscriptionIds(@NonNull final Set<Integer> subIds) {
+            mCaps.setSubscriptionIds(subIds);
             return this;
         }
 
diff --git a/framework/src/android/net/NetworkRequest.java b/framework/src/android/net/NetworkRequest.java
index 78e1011..194b8ff 100644
--- a/framework/src/android/net/NetworkRequest.java
+++ b/framework/src/android/net/NetworkRequest.java
@@ -220,6 +220,10 @@
         public Builder(@NonNull final NetworkRequest request) {
             Objects.requireNonNull(request);
             mNetworkCapabilities = request.networkCapabilities;
+            // If the caller constructed the builder from a request, it means the user
+            // might explicitly want the capabilities from the request. Thus, the NOT_VCN_MANAGED
+            // capabilities should not be touched later.
+            mModifiedNotVcnManaged = true;
         }
 
         /**
@@ -508,8 +512,8 @@
          */
         @NonNull
         @SystemApi
-        public Builder setSubIds(@NonNull Set<Integer> subIds) {
-            mNetworkCapabilities.setSubIds(subIds);
+        public Builder setSubscriptionIds(@NonNull Set<Integer> subIds) {
+            mNetworkCapabilities.setSubscriptionIds(subIds);
             return this;
         }
     }
diff --git a/service/ServiceConnectivityResources/Android.bp b/service/ServiceConnectivityResources/Android.bp
index d783738..515498e 100644
--- a/service/ServiceConnectivityResources/Android.bp
+++ b/service/ServiceConnectivityResources/Android.bp
@@ -21,7 +21,7 @@
 
 android_app {
     name: "ServiceConnectivityResources",
-    sdk_version: "module_current",
+    sdk_version: "module_30",
     min_sdk_version: "30",
     resource_dirs: [
         "res",
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 4d96162..ecac1f2 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -321,7 +321,8 @@
     private static final int MAX_NETWORK_REQUESTS_PER_UID = 100;
 
     // The maximum number of network request allowed for system UIDs before an exception is thrown.
-    private static final int MAX_NETWORK_REQUESTS_PER_SYSTEM_UID = 250;
+    @VisibleForTesting
+    static final int MAX_NETWORK_REQUESTS_PER_SYSTEM_UID = 250;
 
     @VisibleForTesting
     protected int mLingerDelayMs;  // Can't be final, or test subclass constructors can't change it.
@@ -338,7 +339,8 @@
     protected final PermissionMonitor mPermissionMonitor;
 
     private final PerUidCounter mNetworkRequestCounter;
-    private final PerUidCounter mSystemNetworkRequestCounter;
+    @VisibleForTesting
+    final PerUidCounter mSystemNetworkRequestCounter;
 
     private volatile boolean mLockdownEnabled;
 
@@ -630,7 +632,9 @@
     }
 
     private static IDnsResolver getDnsResolver(Context context) {
-        return IDnsResolver.Stub.asInterface(DnsResolverServiceManager.getService(context));
+        final DnsResolverServiceManager dsm = context.getSystemService(
+                DnsResolverServiceManager.class);
+        return IDnsResolver.Stub.asInterface(dsm.getService());
     }
 
     /** Handler thread used for all of the handlers below. */
@@ -1058,8 +1062,9 @@
         private final int mMaxCountPerUid;
 
         // Map from UID to number of NetworkRequests that UID has filed.
+        @VisibleForTesting
         @GuardedBy("mUidToNetworkRequestCount")
-        private final SparseIntArray mUidToNetworkRequestCount = new SparseIntArray();
+        final SparseIntArray mUidToNetworkRequestCount = new SparseIntArray();
 
         /**
          * Constructor
@@ -1083,15 +1088,20 @@
          */
         public void incrementCountOrThrow(final int uid) {
             synchronized (mUidToNetworkRequestCount) {
-                final int networkRequests = mUidToNetworkRequestCount.get(uid, 0) + 1;
-                if (networkRequests >= mMaxCountPerUid) {
-                    throw new ServiceSpecificException(
-                            ConnectivityManager.Errors.TOO_MANY_REQUESTS);
-                }
-                mUidToNetworkRequestCount.put(uid, networkRequests);
+                incrementCountOrThrow(uid, 1 /* numToIncrement */);
             }
         }
 
+        private void incrementCountOrThrow(final int uid, final int numToIncrement) {
+            final int newRequestCount =
+                    mUidToNetworkRequestCount.get(uid, 0) + numToIncrement;
+            if (newRequestCount >= mMaxCountPerUid) {
+                throw new ServiceSpecificException(
+                        ConnectivityManager.Errors.TOO_MANY_REQUESTS);
+            }
+            mUidToNetworkRequestCount.put(uid, newRequestCount);
+        }
+
         /**
          * Decrements the request count of the given uid.
          *
@@ -1099,16 +1109,50 @@
          */
         public void decrementCount(final int uid) {
             synchronized (mUidToNetworkRequestCount) {
-                final int requests = mUidToNetworkRequestCount.get(uid, 0);
-                if (requests < 1) {
-                    logwtf("BUG: too small request count " + requests + " for UID " + uid);
-                } else if (requests == 1) {
-                    mUidToNetworkRequestCount.delete(uid);
-                } else {
-                    mUidToNetworkRequestCount.put(uid, requests - 1);
-                }
+                decrementCount(uid, 1 /* numToDecrement */);
             }
         }
+
+        private void decrementCount(final int uid, final int numToDecrement) {
+            final int newRequestCount =
+                    mUidToNetworkRequestCount.get(uid, 0) - numToDecrement;
+            if (newRequestCount < 0) {
+                logwtf("BUG: too small request count " + newRequestCount + " for UID " + uid);
+            } else if (newRequestCount == 0) {
+                mUidToNetworkRequestCount.delete(uid);
+            } else {
+                mUidToNetworkRequestCount.put(uid, newRequestCount);
+            }
+        }
+
+        /**
+         * Used to adjust the request counter for the per-app API flows. Directly adjusting the
+         * counter is not ideal however in the per-app flows, the nris can't be removed until they
+         * are used to create the new nris upon set. Therefore the request count limit can be
+         * artificially hit. This method is used as a workaround for this particular case so that
+         * the request counts are accounted for correctly.
+         * @param uid the uid to adjust counts for
+         * @param numOfNewRequests the new request count to account for
+         * @param r the runnable to execute
+         */
+        public void transact(final int uid, final int numOfNewRequests, @NonNull final Runnable r) {
+            // This should only be used on the handler thread as per all current and foreseen
+            // use-cases. ensureRunningOnConnectivityServiceThread() can't be used because there is
+            // no ref to the outer ConnectivityService.
+            synchronized (mUidToNetworkRequestCount) {
+                final int reqCountOverage = getCallingUidRequestCountOverage(uid, numOfNewRequests);
+                decrementCount(uid, reqCountOverage);
+                r.run();
+                incrementCountOrThrow(uid, reqCountOverage);
+            }
+        }
+
+        private int getCallingUidRequestCountOverage(final int uid, final int numOfNewRequests) {
+            final int newUidRequestCount = mUidToNetworkRequestCount.get(uid, 0)
+                    + numOfNewRequests;
+            return newUidRequestCount >= MAX_NETWORK_REQUESTS_PER_SYSTEM_UID
+                    ? newUidRequestCount - (MAX_NETWORK_REQUESTS_PER_SYSTEM_UID - 1) : 0;
+        }
     }
 
     /**
@@ -1924,7 +1968,7 @@
         newNc.setAdministratorUids(new int[0]);
         if (!checkAnyPermissionOf(
                 callerPid, callerUid, android.Manifest.permission.NETWORK_FACTORY)) {
-            newNc.setSubIds(Collections.emptySet());
+            newNc.setSubscriptionIds(Collections.emptySet());
         }
 
         return newNc;
@@ -2147,14 +2191,14 @@
         PermissionUtils.enforceNetworkStackPermission(mContext);
 
         final ArrayList<NetworkState> result = new ArrayList<>();
-        for (NetworkStateSnapshot snapshot : getAllNetworkStateSnapshot()) {
+        for (NetworkStateSnapshot snapshot : getAllNetworkStateSnapshots()) {
             // NetworkStateSnapshot doesn't contain NetworkInfo, so need to fetch it from the
             // NetworkAgentInfo.
-            final NetworkAgentInfo nai = getNetworkAgentInfoForNetwork(snapshot.network);
+            final NetworkAgentInfo nai = getNetworkAgentInfoForNetwork(snapshot.getNetwork());
             if (nai != null && nai.networkInfo.isConnected()) {
                 result.add(new NetworkState(new NetworkInfo(nai.networkInfo),
-                        snapshot.linkProperties, snapshot.networkCapabilities, snapshot.network,
-                        snapshot.subscriberId));
+                        snapshot.getLinkProperties(), snapshot.getNetworkCapabilities(),
+                        snapshot.getNetwork(), snapshot.getSubscriberId()));
             }
         }
         return result.toArray(new NetworkState[result.size()]);
@@ -2162,7 +2206,7 @@
 
     @Override
     @NonNull
-    public List<NetworkStateSnapshot> getAllNetworkStateSnapshot() {
+    public List<NetworkStateSnapshot> getAllNetworkStateSnapshots() {
         // This contains IMSI details, so make sure the caller is privileged.
         PermissionUtils.enforceNetworkStackPermission(mContext);
 
@@ -2808,6 +2852,8 @@
     @Override
     protected void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter writer,
             @Nullable String[] args) {
+        if (!checkDumpPermission(mContext, TAG, writer)) return;
+
         mPriorityDumper.dump(fd, writer, args);
     }
 
@@ -2825,7 +2871,6 @@
 
     private void doDump(FileDescriptor fd, PrintWriter writer, String[] args) {
         final IndentingPrintWriter pw = new IndentingPrintWriter(writer, "  ");
-        if (!checkDumpPermission(mContext, TAG, pw)) return;
 
         if (CollectionUtils.contains(args, DIAG_ARG)) {
             dumpNetworkDiagnostics(pw);
@@ -3969,17 +4014,16 @@
                 // multilayer requests, returning as soon as a NetworkAgentInfo satisfies a request
                 // is important so as to not evaluate lower priority requests further in
                 // nri.mRequests.
-                final boolean isNetworkNeeded = candidate.isSatisfyingRequest(req.requestId)
-                        // Note that this catches two important cases:
-                        // 1. Unvalidated cellular will not be reaped when unvalidated WiFi
-                        //    is currently satisfying the request.  This is desirable when
-                        //    cellular ends up validating but WiFi does not.
-                        // 2. Unvalidated WiFi will not be reaped when validated cellular
-                        //    is currently satisfying the request.  This is desirable when
-                        //    WiFi ends up validating and out scoring cellular.
-                        || nri.getSatisfier().getCurrentScore()
-                        < candidate.getCurrentScoreAsValidated();
-                return isNetworkNeeded;
+                final NetworkAgentInfo champion = req.equals(nri.getActiveRequest())
+                        ? nri.getSatisfier() : null;
+                // Note that this catches two important cases:
+                // 1. Unvalidated cellular will not be reaped when unvalidated WiFi
+                //    is currently satisfying the request.  This is desirable when
+                //    cellular ends up validating but WiFi does not.
+                // 2. Unvalidated WiFi will not be reaped when validated cellular
+                //    is currently satisfying the request.  This is desirable when
+                //    WiFi ends up validating and out scoring cellular.
+                return mNetworkRanker.mightBeat(req, champion, candidate.getValidatedScoreable());
             }
         }
 
@@ -5726,7 +5770,7 @@
         }
         mAppOpsManager.checkPackage(callerUid, callerPackageName);
 
-        if (!nc.getSubIds().isEmpty()) {
+        if (!nc.getSubscriptionIds().isEmpty()) {
             enforceNetworkFactoryPermission();
         }
     }
@@ -6148,6 +6192,7 @@
     @Override
     public int registerNetworkProvider(Messenger messenger, String name) {
         enforceNetworkFactoryOrSettingsPermission();
+        Objects.requireNonNull(messenger, "messenger must be non-null");
         NetworkProviderInfo npi = new NetworkProviderInfo(name, messenger,
                 nextNetworkProviderId(), () -> unregisterNetworkProvider(messenger));
         mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_PROVIDER, npi));
@@ -7811,7 +7856,7 @@
             @NonNull final Collection<NetworkRequestInfo> networkRequests) {
         final NetworkReassignment changes = new NetworkReassignment();
 
-        // Gather the list of all relevant agents and sort them by score.
+        // Gather the list of all relevant agents.
         final ArrayList<NetworkAgentInfo> nais = new ArrayList<>();
         for (final NetworkAgentInfo nai : mNetworkAgentInfos) {
             if (!nai.everConnected) {
@@ -9186,6 +9231,7 @@
     @Override
     public void unregisterConnectivityDiagnosticsCallback(
             @NonNull IConnectivityDiagnosticsCallback callback) {
+        Objects.requireNonNull(callback, "callback must be non-null");
         mConnectivityDiagnosticsHandler.sendMessage(
                 mConnectivityDiagnosticsHandler.obtainMessage(
                         ConnectivityDiagnosticsHandler
@@ -9556,6 +9602,7 @@
      */
     @Override
     public void unregisterQosCallback(@NonNull final IQosCallback callback) {
+        Objects.requireNonNull(callback, "callback must be non-null");
         mQosCallbackTracker.unregisterCallback(callback);
     }
 
@@ -9675,9 +9722,13 @@
         validateNetworkCapabilitiesOfProfileNetworkPreference(preference.capabilities);
 
         mProfileNetworkPreferences = mProfileNetworkPreferences.plus(preference);
-        final ArraySet<NetworkRequestInfo> nris =
-                createNrisFromProfileNetworkPreferences(mProfileNetworkPreferences);
-        replaceDefaultNetworkRequestsForPreference(nris);
+        mSystemNetworkRequestCounter.transact(
+                mDeps.getCallingUid(), mProfileNetworkPreferences.preferences.size(),
+                () -> {
+                    final ArraySet<NetworkRequestInfo> nris =
+                            createNrisFromProfileNetworkPreferences(mProfileNetworkPreferences);
+                    replaceDefaultNetworkRequestsForPreference(nris);
+                });
         // Finally, rematch.
         rematchAllNetworksAndRequests();
 
@@ -9763,9 +9814,16 @@
         }
 
         mOemNetworkPreferencesLogs.log("UPDATE INITIATED: " + preference);
-        final ArraySet<NetworkRequestInfo> nris =
-                new OemNetworkRequestFactory().createNrisFromOemNetworkPreferences(preference);
-        replaceDefaultNetworkRequestsForPreference(nris);
+        final int uniquePreferenceCount = new ArraySet<>(
+                preference.getNetworkPreferences().values()).size();
+        mSystemNetworkRequestCounter.transact(
+                mDeps.getCallingUid(), uniquePreferenceCount,
+                () -> {
+                    final ArraySet<NetworkRequestInfo> nris =
+                            new OemNetworkRequestFactory()
+                                    .createNrisFromOemNetworkPreferences(preference);
+                    replaceDefaultNetworkRequestsForPreference(nris);
+                });
         mOemNetworkPreferences = preference;
 
         if (null != listener) {
@@ -9790,10 +9848,14 @@
         final ArraySet<NetworkRequestInfo> perAppCallbackRequestsToUpdate =
                 getPerAppCallbackRequestsToUpdate();
         final ArraySet<NetworkRequestInfo> nrisToRegister = new ArraySet<>(nris);
-        nrisToRegister.addAll(
-                createPerAppCallbackRequestsToRegister(perAppCallbackRequestsToUpdate));
-        handleRemoveNetworkRequests(perAppCallbackRequestsToUpdate);
-        handleRegisterNetworkRequests(nrisToRegister);
+        mSystemNetworkRequestCounter.transact(
+                mDeps.getCallingUid(), perAppCallbackRequestsToUpdate.size(),
+                () -> {
+                    nrisToRegister.addAll(
+                            createPerAppCallbackRequestsToRegister(perAppCallbackRequestsToUpdate));
+                    handleRemoveNetworkRequests(perAppCallbackRequestsToUpdate);
+                    handleRegisterNetworkRequests(nrisToRegister);
+                });
     }
 
     /**
diff --git a/services/core/java/com/android/server/connectivity/FullScore.java b/services/core/java/com/android/server/connectivity/FullScore.java
index 52da566..14cec09 100644
--- a/services/core/java/com/android/server/connectivity/FullScore.java
+++ b/services/core/java/com/android/server/connectivity/FullScore.java
@@ -259,6 +259,14 @@
     }
 
     /**
+     * Returns this score but validated.
+     */
+    public FullScore asValidated() {
+        return new FullScore(mLegacyInt, mPolicies | (1L << POLICY_IS_VALIDATED),
+                mKeepConnectedReason);
+    }
+
+    /**
      * For backward compatibility, get the legacy int.
      * This will be removed before S is published.
      */
diff --git a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
index 584174e..18becd4 100644
--- a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
@@ -950,6 +950,26 @@
     }
 
     /**
+     * Returns a Scoreable identical to this NAI, but validated.
+     *
+     * This is useful to probe what scoring would be if this network validated, to know
+     * whether to provisionally keep a network that may or may not validate.
+     *
+     * @return a Scoreable identical to this NAI, but validated.
+     */
+    public NetworkRanker.Scoreable getValidatedScoreable() {
+        return new NetworkRanker.Scoreable() {
+            @Override public FullScore getScore() {
+                return mScore.asValidated();
+            }
+
+            @Override public NetworkCapabilities getCapsNoCopy() {
+                return networkCapabilities;
+            }
+        };
+    }
+
+    /**
      * Return a {@link NetworkStateSnapshot} for this network.
      */
     @NonNull
diff --git a/services/core/java/com/android/server/connectivity/NetworkRanker.java b/services/core/java/com/android/server/connectivity/NetworkRanker.java
index 2b345e5..346af44 100644
--- a/services/core/java/com/android/server/connectivity/NetworkRanker.java
+++ b/services/core/java/com/android/server/connectivity/NetworkRanker.java
@@ -234,16 +234,17 @@
         NetworkAgentInfo bestNetwork = null;
         int bestScore = Integer.MIN_VALUE;
         for (final NetworkAgentInfo nai : nais) {
-            if (nai.getCurrentScore() > bestScore) {
+            final int naiScore = nai.getCurrentScore();
+            if (naiScore > bestScore) {
                 bestNetwork = nai;
-                bestScore = nai.getCurrentScore();
+                bestScore = naiScore;
             }
         }
         return bestNetwork;
     }
 
     /**
-     * Returns whether an offer has a chance to beat a champion network for a request.
+     * Returns whether a {@link Scoreable} has a chance to beat a champion network for a request.
      *
      * Offers are sent by network providers when they think they might be able to make a network
      * with the characteristics contained in the offer. If the offer has no chance to beat
@@ -257,15 +258,15 @@
      *
      * @param request The request to evaluate against.
      * @param champion The currently best network for this request.
-     * @param offer The offer.
+     * @param contestant The offer.
      * @return Whether the offer stands a chance to beat the champion.
      */
     public boolean mightBeat(@NonNull final NetworkRequest request,
             @Nullable final NetworkAgentInfo champion,
-            @NonNull final NetworkOffer offer) {
+            @NonNull final Scoreable contestant) {
         // If this network can't even satisfy the request then it can't beat anything, not
         // even an absence of network. It can't satisfy it anyway.
-        if (!request.canBeSatisfiedBy(offer.caps)) return false;
+        if (!request.canBeSatisfiedBy(contestant.getCapsNoCopy())) return false;
         // If there is no satisfying network, then this network can beat, because some network
         // is always better than no network.
         if (null == champion) return true;
@@ -274,25 +275,24 @@
             // Otherwise rank them.
             final ArrayList<Scoreable> candidates = new ArrayList<>();
             candidates.add(champion);
-            candidates.add(offer);
-            return offer == getBestNetworkByPolicy(candidates, champion);
+            candidates.add(contestant);
+            return contestant == getBestNetworkByPolicy(candidates, champion);
         } else {
-            return mightBeatByLegacyInt(request, champion.getScore(), offer);
+            return mightBeatByLegacyInt(champion.getScore(), contestant);
         }
     }
 
     /**
-     * Returns whether an offer might beat a champion according to the legacy int.
+     * Returns whether a contestant might beat a champion according to the legacy int.
      */
-    public boolean mightBeatByLegacyInt(@NonNull final NetworkRequest request,
-            @Nullable final FullScore championScore,
-            @NonNull final NetworkOffer offer) {
+    private boolean mightBeatByLegacyInt(@Nullable final FullScore championScore,
+            @NonNull final Scoreable contestant) {
         final int offerIntScore;
-        if (offer.caps.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) {
+        if (contestant.getCapsNoCopy().hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)) {
             // If the offer might have Internet access, then it might validate.
-            offerIntScore = offer.score.getLegacyIntAsValidated();
+            offerIntScore = contestant.getScore().getLegacyIntAsValidated();
         } else {
-            offerIntScore = offer.score.getLegacyInt();
+            offerIntScore = contestant.getScore().getLegacyInt();
         }
         return championScore.getLegacyInt() < offerIntScore;
     }
diff --git a/tests/net/TEST_MAPPING b/tests/net/TEST_MAPPING
index d659688..502f885 100644
--- a/tests/net/TEST_MAPPING
+++ b/tests/net/TEST_MAPPING
@@ -28,7 +28,7 @@
   ],
   "imports": [
     {
-      "path": "cts/tests/tests/net"
+      "path": "packages/modules/Connectivity"
     }
   ]
 }
\ No newline at end of file
diff --git a/tests/net/common/java/ParseExceptionTest.kt b/tests/net/common/java/ParseExceptionTest.kt
new file mode 100644
index 0000000..b702d61
--- /dev/null
+++ b/tests/net/common/java/ParseExceptionTest.kt
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+import android.net.ParseException
+import android.os.Build
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import com.android.testutils.DevSdkIgnoreRule
+import junit.framework.Assert.assertEquals
+import junit.framework.Assert.assertNull
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class ParseExceptionTest {
+    @get:Rule
+    val ignoreRule = DevSdkIgnoreRule(ignoreClassUpTo = Build.VERSION_CODES.R)
+
+    @Test
+    fun testConstructor_WithCause() {
+        val testMessage = "Test message"
+        val base = Exception("Test")
+        val exception = ParseException(testMessage, base)
+
+        assertEquals(testMessage, exception.response)
+        assertEquals(base, exception.cause)
+    }
+
+    @Test
+    fun testConstructor_NoCause() {
+        val testMessage = "Test message"
+        val exception = ParseException(testMessage)
+
+        assertEquals(testMessage, exception.response)
+        assertNull(exception.cause)
+    }
+}
\ No newline at end of file
diff --git a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
index 6d852bf..9b74583 100644
--- a/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
+++ b/tests/net/common/java/android/net/NetworkCapabilitiesTest.java
@@ -312,7 +312,7 @@
             .addCapability(NET_CAPABILITY_EIMS)
             .addCapability(NET_CAPABILITY_NOT_METERED);
         if (isAtLeastS()) {
-            netCap.setSubIds(Set.of(TEST_SUBID1, TEST_SUBID2));
+            netCap.setSubscriptionIds(Set.of(TEST_SUBID1, TEST_SUBID2));
             netCap.setUids(uids);
         }
         if (isAtLeastR()) {
@@ -642,16 +642,16 @@
             assertTrue(nc2.appliesToUid(22));
 
             // Verify the subscription id list can be combined only when they are equal.
-            nc1.setSubIds(Set.of(TEST_SUBID1, TEST_SUBID2));
-            nc2.setSubIds(Set.of(TEST_SUBID2));
+            nc1.setSubscriptionIds(Set.of(TEST_SUBID1, TEST_SUBID2));
+            nc2.setSubscriptionIds(Set.of(TEST_SUBID2));
             assertThrows(IllegalStateException.class, () -> nc2.combineCapabilities(nc1));
 
-            nc2.setSubIds(Set.of());
+            nc2.setSubscriptionIds(Set.of());
             assertThrows(IllegalStateException.class, () -> nc2.combineCapabilities(nc1));
 
-            nc2.setSubIds(Set.of(TEST_SUBID2, TEST_SUBID1));
+            nc2.setSubscriptionIds(Set.of(TEST_SUBID2, TEST_SUBID1));
             nc2.combineCapabilities(nc1);
-            assertEquals(Set.of(TEST_SUBID2, TEST_SUBID1), nc2.getSubIds());
+            assertEquals(Set.of(TEST_SUBID2, TEST_SUBID1), nc2.getSubscriptionIds());
         }
     }
 
@@ -806,20 +806,20 @@
         assertEquals(nc1, nc2);
 
         if (isAtLeastS()) {
-            assertThrows(NullPointerException.class, () -> nc1.setSubIds(null));
-            nc1.setSubIds(Set.of());
+            assertThrows(NullPointerException.class, () -> nc1.setSubscriptionIds(null));
+            nc1.setSubscriptionIds(Set.of());
             nc2.set(nc1);
             assertEquals(nc1, nc2);
 
-            nc1.setSubIds(Set.of(TEST_SUBID1));
+            nc1.setSubscriptionIds(Set.of(TEST_SUBID1));
             nc2.set(nc1);
             assertEquals(nc1, nc2);
 
-            nc2.setSubIds(Set.of(TEST_SUBID2, TEST_SUBID1));
+            nc2.setSubscriptionIds(Set.of(TEST_SUBID2, TEST_SUBID1));
             nc2.set(nc1);
             assertEquals(nc1, nc2);
 
-            nc2.setSubIds(Set.of(TEST_SUBID3, TEST_SUBID2));
+            nc2.setSubscriptionIds(Set.of(TEST_SUBID3, TEST_SUBID2));
             assertNotEquals(nc1, nc2);
         }
     }
@@ -908,8 +908,8 @@
         // satisfy these requests.
         final NetworkCapabilities nc = new NetworkCapabilities.Builder()
                 .addCapability(NET_CAPABILITY_NOT_VCN_MANAGED)
-                .setSubIds(new ArraySet<>(subIds)).build();
-        assertEquals(new ArraySet<>(subIds), nc.getSubIds());
+                .setSubscriptionIds(new ArraySet<>(subIds)).build();
+        assertEquals(new ArraySet<>(subIds), nc.getSubscriptionIds());
         return nc;
     }
 
@@ -921,11 +921,11 @@
         final NetworkCapabilities ncWithoutRequestedIds = capsWithSubIds(TEST_SUBID3);
 
         final NetworkRequest requestWithoutId = new NetworkRequest.Builder().build();
-        assertEmpty(requestWithoutId.networkCapabilities.getSubIds());
+        assertEmpty(requestWithoutId.networkCapabilities.getSubscriptionIds());
         final NetworkRequest requestWithIds = new NetworkRequest.Builder()
-                .setSubIds(Set.of(TEST_SUBID1, TEST_SUBID2)).build();
+                .setSubscriptionIds(Set.of(TEST_SUBID1, TEST_SUBID2)).build();
         assertEquals(Set.of(TEST_SUBID1, TEST_SUBID2),
-                requestWithIds.networkCapabilities.getSubIds());
+                requestWithIds.networkCapabilities.getSubscriptionIds());
 
         assertFalse(requestWithIds.canBeSatisfiedBy(ncWithoutId));
         assertTrue(requestWithIds.canBeSatisfiedBy(ncWithOtherIds));
@@ -1138,8 +1138,8 @@
 
         if (isAtLeastS()) {
             final NetworkCapabilities nc2 = new NetworkCapabilities.Builder()
-                    .setSubIds(Set.of(TEST_SUBID1)).build();
-            assertEquals(Set.of(TEST_SUBID1), nc2.getSubIds());
+                    .setSubscriptionIds(Set.of(TEST_SUBID1)).build();
+            assertEquals(Set.of(TEST_SUBID1), nc2.getSubscriptionIds());
         }
     }
 }
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 9582e66..2624a1b 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -1791,7 +1791,7 @@
         assertNull(mCm.getActiveNetworkForUid(Process.myUid()));
         // Test getAllNetworks()
         assertEmpty(mCm.getAllNetworks());
-        assertEmpty(mCm.getAllNetworkStateSnapshot());
+        assertEmpty(mCm.getAllNetworkStateSnapshots());
     }
 
     /**
@@ -2668,25 +2668,6 @@
         assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
 
-        // Bring up wifi with a score of 70.
-        // Cell is lingered because it would not satisfy any request, even if it validated.
-        mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
-        mWiFiNetworkAgent.adjustScore(50);
-        mWiFiNetworkAgent.connect(false);   // Score: 70
-        callback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
-        callback.expectCallback(CallbackEntry.LOSING, mCellNetworkAgent);
-        defaultCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
-        assertEquals(mWiFiNetworkAgent.getNetwork(), mCm.getActiveNetwork());
-        assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
-
-        // Tear down wifi.
-        mWiFiNetworkAgent.disconnect();
-        callback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        defaultCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
-        defaultCallback.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
-        assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
-        assertEquals(defaultCallback.getLastAvailableNetwork(), mCm.getActiveNetwork());
-
         // Bring up wifi, then validate it. Previous versions would immediately tear down cell, but
         // it's arguably correct to linger it, since it was the default network before it validated.
         mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
@@ -2991,11 +2972,17 @@
         callback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
         assertEquals(mWiFiNetworkAgent.getNetwork(), mCm.getActiveNetwork());
 
-        // BUG: the network will no longer linger, even though it's validated and outscored.
-        // TODO: fix this.
         mEthernetNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_ETHERNET);
         mEthernetNetworkAgent.connect(true);
+        // BUG: with the legacy int-based scoring code, the network will no longer linger, even
+        // though it's validated and outscored.
+        // The new policy-based scoring code fixes this.
+        // TODO: remove the line below and replace with the three commented lines when
+        // the policy-based scoring code is turned on.
         callback.expectAvailableThenValidatedCallbacks(mEthernetNetworkAgent);
+        // callback.expectAvailableCallbacksUnvalidated(mEthernetNetworkAgent);
+        // callback.expectCallback(CallbackEntry.LOSING, mWiFiNetworkAgent);
+        // callback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mEthernetNetworkAgent);
         assertEquals(mEthernetNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         callback.assertNoCallback();
 
@@ -10422,12 +10409,15 @@
         return UidRange.createForUser(UserHandle.of(userId));
     }
 
-    private void mockGetApplicationInfo(@NonNull final String packageName, @NonNull final int uid)
-            throws Exception {
+    private void mockGetApplicationInfo(@NonNull final String packageName, @NonNull final int uid) {
         final ApplicationInfo applicationInfo = new ApplicationInfo();
         applicationInfo.uid = uid;
-        when(mPackageManager.getApplicationInfo(eq(packageName), anyInt()))
-                .thenReturn(applicationInfo);
+        try {
+            when(mPackageManager.getApplicationInfo(eq(packageName), anyInt()))
+                    .thenReturn(applicationInfo);
+        } catch (Exception e) {
+            fail(e.getMessage());
+        }
     }
 
     private void mockGetApplicationInfoThrowsNameNotFound(@NonNull final String packageName)
@@ -10448,8 +10438,7 @@
     }
 
     private OemNetworkPreferences createDefaultOemNetworkPreferences(
-            @OemNetworkPreferences.OemNetworkPreference final int preference)
-            throws Exception {
+            @OemNetworkPreferences.OemNetworkPreference final int preference) {
         // Arrange PackageManager mocks
         mockGetApplicationInfo(TEST_PACKAGE_NAME, TEST_PACKAGE_UID);
 
@@ -10926,11 +10915,13 @@
             mDone.complete(new Object());
         }
 
-        void expectOnComplete() throws Exception {
+        void expectOnComplete() {
             try {
                 mDone.get(TIMEOUT_MS, TimeUnit.MILLISECONDS);
             } catch (TimeoutException e) {
                 fail("Expected onComplete() not received after " + TIMEOUT_MS + " ms");
+            } catch (Exception e) {
+                fail(e.getMessage());
             }
         }
 
@@ -12029,7 +12020,7 @@
     }
 
     @Test
-    public void testGetAllNetworkStateSnapshot() throws Exception {
+    public void testGetAllNetworkStateSnapshots() throws Exception {
         verifyNoNetwork();
 
         // Setup test cellular network with specified LinkProperties and NetworkCapabilities,
@@ -12053,7 +12044,7 @@
         mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR, cellLp, cellNcTemplate);
         mCellNetworkAgent.connect(true);
         cellCb.expectAvailableCallbacksUnvalidated(mCellNetworkAgent);
-        List<NetworkStateSnapshot> snapshots = mCm.getAllNetworkStateSnapshot();
+        List<NetworkStateSnapshot> snapshots = mCm.getAllNetworkStateSnapshots();
         assertLength(1, snapshots);
 
         // Compose the expected cellular snapshot for verification.
@@ -12075,7 +12066,7 @@
                 mWiFiNetworkAgent.getNetwork(), wifiNc, new LinkProperties(), null,
                 ConnectivityManager.TYPE_WIFI);
 
-        snapshots = mCm.getAllNetworkStateSnapshot();
+        snapshots = mCm.getAllNetworkStateSnapshots();
         assertLength(2, snapshots);
         assertContainsAll(snapshots, cellSnapshot, wifiSnapshot);
 
@@ -12084,20 +12075,20 @@
         //  temporary shortage of connectivity of a connected network.
         mCellNetworkAgent.suspend();
         waitForIdle();
-        snapshots = mCm.getAllNetworkStateSnapshot();
+        snapshots = mCm.getAllNetworkStateSnapshots();
         assertLength(1, snapshots);
         assertEquals(wifiSnapshot, snapshots.get(0));
 
         // Disconnect wifi, verify the snapshots contain nothing.
         mWiFiNetworkAgent.disconnect();
         waitForIdle();
-        snapshots = mCm.getAllNetworkStateSnapshot();
+        snapshots = mCm.getAllNetworkStateSnapshots();
         assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         assertLength(0, snapshots);
 
         mCellNetworkAgent.resume();
         waitForIdle();
-        snapshots = mCm.getAllNetworkStateSnapshot();
+        snapshots = mCm.getAllNetworkStateSnapshots();
         assertLength(1, snapshots);
         assertEquals(cellSnapshot, snapshots.get(0));
 
@@ -12602,12 +12593,12 @@
     public void testSubIdsClearedWithoutNetworkFactoryPermission() throws Exception {
         mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_DENIED);
         final NetworkCapabilities nc = new NetworkCapabilities();
-        nc.setSubIds(Collections.singleton(Process.myUid()));
+        nc.setSubscriptionIds(Collections.singleton(Process.myUid()));
 
         final NetworkCapabilities result =
                 mService.networkCapabilitiesRestrictedForCallerPermissions(
                         nc, Process.myPid(), Process.myUid());
-        assertTrue(result.getSubIds().isEmpty());
+        assertTrue(result.getSubscriptionIds().isEmpty());
     }
 
     @Test
@@ -12616,17 +12607,17 @@
 
         final Set<Integer> subIds = Collections.singleton(Process.myUid());
         final NetworkCapabilities nc = new NetworkCapabilities();
-        nc.setSubIds(subIds);
+        nc.setSubscriptionIds(subIds);
 
         final NetworkCapabilities result =
                 mService.networkCapabilitiesRestrictedForCallerPermissions(
                         nc, Process.myPid(), Process.myUid());
-        assertEquals(subIds, result.getSubIds());
+        assertEquals(subIds, result.getSubscriptionIds());
     }
 
     private NetworkRequest getRequestWithSubIds() {
         return new NetworkRequest.Builder()
-                .setSubIds(Collections.singleton(Process.myUid()))
+                .setSubscriptionIds(Collections.singleton(Process.myUid()))
                 .build();
     }
 
@@ -12661,4 +12652,72 @@
                 expected,
                 () -> mCm.registerNetworkCallback(getRequestWithSubIds(), new NetworkCallback()));
     }
+
+    /**
+     * Validate request counts are counted accurately on setProfileNetworkPreference on set/replace.
+     */
+    @Test
+    public void testProfileNetworkPrefCountsRequestsCorrectlyOnSet() throws Exception {
+        final UserHandle testHandle = setupEnterpriseNetwork();
+        testRequestCountLimits(() -> {
+            // Set initially to test the limit prior to having existing requests.
+            final TestOnCompleteListener listener = new TestOnCompleteListener();
+            mCm.setProfileNetworkPreference(testHandle, PROFILE_NETWORK_PREFERENCE_ENTERPRISE,
+                    Runnable::run, listener);
+            listener.expectOnComplete();
+
+            // re-set so as to test the limit as part of replacing existing requests.
+            mCm.setProfileNetworkPreference(testHandle, PROFILE_NETWORK_PREFERENCE_ENTERPRISE,
+                    Runnable::run, listener);
+            listener.expectOnComplete();
+        });
+    }
+
+    /**
+     * Validate request counts are counted accurately on setOemNetworkPreference on set/replace.
+     */
+    @Test
+    public void testSetOemNetworkPreferenceCountsRequestsCorrectlyOnSet() throws Exception {
+        mockHasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE, true);
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY;
+        testRequestCountLimits(() -> {
+            // Set initially to test the limit prior to having existing requests.
+            final TestOemListenerCallback listener = new TestOemListenerCallback();
+            mService.setOemNetworkPreference(
+                    createDefaultOemNetworkPreferences(networkPref), listener);
+            listener.expectOnComplete();
+
+            // re-set so as to test the limit as part of replacing existing requests.
+            mService.setOemNetworkPreference(
+                    createDefaultOemNetworkPreferences(networkPref), listener);
+            listener.expectOnComplete();
+        });
+    }
+
+    private void testRequestCountLimits(@NonNull final Runnable r) throws Exception {
+        final ArraySet<TestNetworkCallback> callbacks = new ArraySet<>();
+        try {
+            final int requestCount = mService.mSystemNetworkRequestCounter
+                    .mUidToNetworkRequestCount.get(Process.myUid());
+            // The limit is hit when total requests <= limit.
+            final int maxCount =
+                    ConnectivityService.MAX_NETWORK_REQUESTS_PER_SYSTEM_UID - requestCount;
+            // Need permission so registerDefaultNetworkCallback uses mSystemNetworkRequestCounter
+            withPermission(NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, () -> {
+                for (int i = 1; i < maxCount - 1; i++) {
+                    final TestNetworkCallback cb = new TestNetworkCallback();
+                    mCm.registerDefaultNetworkCallback(cb);
+                    callbacks.add(cb);
+                }
+
+                // Code to run to check if it triggers a max request count limit error.
+                r.run();
+            });
+        } finally {
+            for (final TestNetworkCallback cb : callbacks) {
+                mCm.unregisterNetworkCallback(cb);
+            }
+        }
+    }
 }
diff --git a/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java b/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
index eeeb4fb..42441c2 100644
--- a/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
+++ b/tests/net/java/com/android/server/net/NetworkStatsServiceTest.java
@@ -67,6 +67,7 @@
 import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -88,8 +89,8 @@
 import android.net.NetworkStats;
 import android.net.NetworkStatsHistory;
 import android.net.NetworkTemplate;
-import android.net.UnderlyingNetworkInfo;
 import android.net.TelephonyNetworkSpecifier;
+import android.net.UnderlyingNetworkInfo;
 import android.net.netstats.provider.INetworkStatsProviderCallback;
 import android.os.ConditionVariable;
 import android.os.Handler;
@@ -165,9 +166,9 @@
 
     private long mElapsedRealtime;
 
-    private BroadcastInterceptingContext mServiceContext;
     private File mStatsDir;
-
+    private MockContext mServiceContext;
+    private @Mock TelephonyManager mTelephonyManager;
     private @Mock INetworkManagementService mNetManager;
     private @Mock NetworkStatsFactory mStatsFactory;
     private @Mock NetworkStatsSettings mSettings;
@@ -183,19 +184,32 @@
     private ContentObserver mContentObserver;
     private Handler mHandler;
 
+    private class MockContext extends BroadcastInterceptingContext {
+        private final Context mBaseContext;
+
+        MockContext(Context base) {
+            super(base);
+            mBaseContext = base;
+        }
+
+        @Override
+        public Object getSystemService(String name) {
+            if (Context.TELEPHONY_SERVICE.equals(name)) return mTelephonyManager;
+            return mBaseContext.getSystemService(name);
+        }
+    }
+
     private final Clock mClock = new SimpleClock(ZoneOffset.UTC) {
         @Override
         public long millis() {
             return currentTimeMillis();
         }
     };
-
     @Before
     public void setUp() throws Exception {
         MockitoAnnotations.initMocks(this);
         final Context context = InstrumentationRegistry.getContext();
-
-        mServiceContext = new BroadcastInterceptingContext(context);
+        mServiceContext = new MockContext(context);
         mStatsDir = context.getFilesDir();
         if (mStatsDir.exists()) {
             IoUtils.deleteContents(mStatsDir);
@@ -217,7 +231,6 @@
         expectDefaultSettings();
         expectNetworkStatsUidDetail(buildEmptyStats());
         expectSystemReady();
-
         mService.systemReady();
         // Verify that system ready fetches realtime stats
         verify(mStatsFactory).readNetworkStatsDetail(UID_ALL, INTERFACES_ALL, TAG_ALL);
@@ -228,6 +241,9 @@
         verify(mNetworkStatsSubscriptionsMonitor).start();
         reset(mNetworkStatsSubscriptionsMonitor);
 
+        doReturn(TelephonyManager.CARRIER_PRIVILEGE_STATUS_HAS_ACCESS).when(mTelephonyManager)
+                .checkCarrierPrivilegesForPackageAnyPhone(anyString());
+
         mSession = mService.openSession();
         assertNotNull("openSession() failed", mSession);
 
@@ -873,7 +889,7 @@
         final LinkProperties stackedProp = new LinkProperties();
         stackedProp.setInterfaceName(stackedIface);
         final NetworkStateSnapshot wifiState = buildWifiState();
-        wifiState.linkProperties.addStackedLink(stackedProp);
+        wifiState.getLinkProperties().addStackedLink(stackedProp);
         NetworkStateSnapshot[] states = new NetworkStateSnapshot[] {wifiState};
 
         expectNetworkStatsSummary(buildEmptyStats());
@@ -1564,10 +1580,10 @@
     }
 
     private String getActiveIface(NetworkStateSnapshot... states) throws Exception {
-        if (states == null || states.length == 0 || states[0].linkProperties == null) {
+        if (states == null || states.length == 0 || states[0].getLinkProperties() == null) {
             return null;
         }
-        return states[0].linkProperties.getInterfaceName();
+        return states[0].getLinkProperties().getInterfaceName();
     }
 
     private void expectNetworkStatsSummary(NetworkStats summary) throws Exception {