diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index 4eaf973..ffaf41f 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -71,23 +71,29 @@
 import android.telephony.TelephonyManager;
 import android.util.ArrayMap;
 import android.util.Log;
+import android.util.LruCache;
 import android.util.Range;
 import android.util.SparseIntArray;
 
 import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.modules.utils.build.SdkLevel;
 
 import libcore.net.event.NetworkEventDispatcher;
 
 import java.io.IOException;
 import java.io.UncheckedIOException;
+import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+import java.lang.reflect.Method;
 import java.net.DatagramSocket;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 import java.net.Socket;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;
@@ -1231,6 +1237,19 @@
     @GuardedBy("mTetheringEventCallbacks")
     private TetheringManager mTetheringManager;
 
+    // Cache of the most recently used NetworkCallback classes (not instances) -> method flags.
+    // 100 is chosen kind arbitrarily as an unlikely number of different types of NetworkCallback
+    // overrides that a process may have, and should generally not be reached (for example, the
+    // system server services.jar has been observed with dexdump to have only 16 when this was
+    // added, and a very large system services app only had 18).
+    // If this number is exceeded, the code will still function correctly, but re-registering
+    // using a network callback class that was used before, but 100+ other classes have been used in
+    // the meantime, will be a bit slower (as slow as the first registration) because
+    // getDeclaredMethodsFlag must re-examine the callback class to determine what methods it
+    // overrides.
+    private static final LruCache<Class<? extends NetworkCallback>, Integer> sMethodFlagsCache =
+            new LruCache<>(100);
+
     private final Object mEnabledConnectivityManagerFeaturesLock = new Object();
     // mEnabledConnectivityManagerFeatures is lazy-loaded in this ConnectivityManager instance, but
     // fetched from ConnectivityService, where it is loaded in ConnectivityService startup, so it
@@ -3996,6 +4015,55 @@
      */
     public static class NetworkCallback {
         /**
+         * Bitmask of method flags with all flags set.
+         * @hide
+         */
+        public static final int DECLARED_METHODS_ALL = ~0;
+
+        /**
+         * Bitmask of method flags with no flag set.
+         * @hide
+         */
+        public static final int DECLARED_METHODS_NONE = 0;
+
+        // Tracks whether an instance was created via reflection without calling the constructor.
+        private final boolean mConstructorWasCalled;
+
+        /**
+         * Annotation for NetworkCallback methods to verify filtering is configured properly.
+         *
+         * This is only used in tests to ensure that tests fail when a new callback is added, or
+         * callbacks are modified, without updating
+         * {@link NetworkCallbackMethodsHolder#NETWORK_CB_METHODS} properly.
+         * @hide
+         */
+        @Retention(RetentionPolicy.RUNTIME)
+        @Target(ElementType.METHOD)
+        @VisibleForTesting
+        public @interface FilteredCallback {
+            /**
+             * The NetworkCallback.METHOD_* ID of this method.
+             */
+            int methodId();
+
+            /**
+             * The ConnectivityManager.CALLBACK_* message that this method is directly called by.
+             *
+             * If this method is not called by any message, this should be
+             * {@link #CALLBACK_TRANSITIVE_CALLS_ONLY}.
+             */
+            int calledByCallbackId();
+
+            /**
+             * If this method may call other NetworkCallback methods, an array of methods it calls.
+             *
+             * Only direct calls (not transitive calls) should be included. The IDs must be
+             * NetworkCallback.METHOD_* IDs.
+             */
+            int[] mayCall() default {};
+        }
+
+        /**
          * No flags associated with this callback.
          * @hide
          */
@@ -4058,6 +4126,7 @@
                 throw new IllegalArgumentException("Invalid flags");
             }
             mFlags = flags;
+            mConstructorWasCalled = true;
         }
 
         /**
@@ -4075,7 +4144,9 @@
          *
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONPRECHECK, calledByCallbackId = CALLBACK_PRECHECK)
         public void onPreCheck(@NonNull Network network) {}
+        private static final int METHOD_ONPRECHECK = 1;
 
         /**
          * Called when the framework connects and has declared a new network ready for use.
@@ -4090,6 +4161,11 @@
          * @param blocked Whether access to the {@link Network} is blocked due to system policy.
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONAVAILABLE_5ARGS,
+                calledByCallbackId = CALLBACK_AVAILABLE,
+                mayCall = { METHOD_ONAVAILABLE_4ARGS,
+                        METHOD_ONLOCALNETWORKINFOCHANGED,
+                        METHOD_ONBLOCKEDSTATUSCHANGED_INT })
         public final void onAvailable(@NonNull Network network,
                 @NonNull NetworkCapabilities networkCapabilities,
                 @NonNull LinkProperties linkProperties,
@@ -4102,6 +4178,7 @@
             if (null != localInfo) onLocalNetworkInfoChanged(network, localInfo);
             onBlockedStatusChanged(network, blocked);
         }
+        private static final int METHOD_ONAVAILABLE_5ARGS = 2;
 
         /**
          * Legacy variant of onAvailable that takes a boolean blocked reason.
@@ -4114,6 +4191,13 @@
          *
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONAVAILABLE_4ARGS,
+                calledByCallbackId = CALLBACK_TRANSITIVE_CALLS_ONLY,
+                mayCall = { METHOD_ONAVAILABLE_1ARG,
+                        METHOD_ONNETWORKSUSPENDED,
+                        METHOD_ONCAPABILITIESCHANGED,
+                        METHOD_ONLINKPROPERTIESCHANGED
+                })
         public void onAvailable(@NonNull Network network,
                 @NonNull NetworkCapabilities networkCapabilities,
                 @NonNull LinkProperties linkProperties,
@@ -4127,6 +4211,7 @@
             onLinkPropertiesChanged(network, linkProperties);
             // No call to onBlockedStatusChanged here. That is done by the caller.
         }
+        private static final int METHOD_ONAVAILABLE_4ARGS = 3;
 
         /**
          * Called when the framework connects and has declared a new network ready for use.
@@ -4157,7 +4242,10 @@
          *
          * @param network The {@link Network} of the satisfying network.
          */
+        @FilteredCallback(methodId = METHOD_ONAVAILABLE_1ARG,
+                calledByCallbackId = CALLBACK_TRANSITIVE_CALLS_ONLY)
         public void onAvailable(@NonNull Network network) {}
+        private static final int METHOD_ONAVAILABLE_1ARG = 4;
 
         /**
          * Called when the network is about to be lost, typically because there are no outstanding
@@ -4176,7 +4264,9 @@
          *                    connected for graceful handover; note that the network may still
          *                    suffer a hard loss at any time.
          */
+        @FilteredCallback(methodId = METHOD_ONLOSING, calledByCallbackId = CALLBACK_LOSING)
         public void onLosing(@NonNull Network network, int maxMsToLive) {}
+        private static final int METHOD_ONLOSING = 5;
 
         /**
          * Called when a network disconnects or otherwise no longer satisfies this request or
@@ -4197,7 +4287,9 @@
          *
          * @param network The {@link Network} lost.
          */
+        @FilteredCallback(methodId = METHOD_ONLOST, calledByCallbackId = CALLBACK_LOST)
         public void onLost(@NonNull Network network) {}
+        private static final int METHOD_ONLOST = 6;
 
         /**
          * Called if no network is found within the timeout time specified in
@@ -4207,7 +4299,9 @@
          * {@link NetworkRequest} will have already been removed and released, as if
          * {@link #unregisterNetworkCallback(NetworkCallback)} had been called.
          */
+        @FilteredCallback(methodId = METHOD_ONUNAVAILABLE, calledByCallbackId = CALLBACK_UNAVAIL)
         public void onUnavailable() {}
+        private static final int METHOD_ONUNAVAILABLE = 7;
 
         /**
          * Called when the network corresponding to this request changes capabilities but still
@@ -4224,8 +4318,11 @@
          * @param networkCapabilities The new {@link NetworkCapabilities} for this
          *                            network.
          */
+        @FilteredCallback(methodId = METHOD_ONCAPABILITIESCHANGED,
+                calledByCallbackId = CALLBACK_CAP_CHANGED)
         public void onCapabilitiesChanged(@NonNull Network network,
                 @NonNull NetworkCapabilities networkCapabilities) {}
+        private static final int METHOD_ONCAPABILITIESCHANGED = 8;
 
         /**
          * Called when the network corresponding to this request changes {@link LinkProperties}.
@@ -4240,8 +4337,11 @@
          * @param network The {@link Network} whose link properties have changed.
          * @param linkProperties The new {@link LinkProperties} for this network.
          */
+        @FilteredCallback(methodId = METHOD_ONLINKPROPERTIESCHANGED,
+                calledByCallbackId = CALLBACK_IP_CHANGED)
         public void onLinkPropertiesChanged(@NonNull Network network,
                 @NonNull LinkProperties linkProperties) {}
+        private static final int METHOD_ONLINKPROPERTIESCHANGED = 9;
 
         /**
          * Called when there is a change in the {@link LocalNetworkInfo} for this network.
@@ -4253,8 +4353,11 @@
          * @param localNetworkInfo the new {@link LocalNetworkInfo} for this network.
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONLOCALNETWORKINFOCHANGED,
+                calledByCallbackId = CALLBACK_LOCAL_NETWORK_INFO_CHANGED)
         public void onLocalNetworkInfoChanged(@NonNull Network network,
                 @NonNull LocalNetworkInfo localNetworkInfo) {}
+        private static final int METHOD_ONLOCALNETWORKINFOCHANGED = 10;
 
         /**
          * Called when the network the framework connected to for this request suspends data
@@ -4273,7 +4376,10 @@
          *
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONNETWORKSUSPENDED,
+                calledByCallbackId = CALLBACK_SUSPENDED)
         public void onNetworkSuspended(@NonNull Network network) {}
+        private static final int METHOD_ONNETWORKSUSPENDED = 11;
 
         /**
          * Called when the network the framework connected to for this request
@@ -4287,7 +4393,9 @@
          *
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONNETWORKRESUMED, calledByCallbackId = CALLBACK_RESUMED)
         public void onNetworkResumed(@NonNull Network network) {}
+        private static final int METHOD_ONNETWORKRESUMED = 12;
 
         /**
          * Called when access to the specified network is blocked or unblocked.
@@ -4300,7 +4408,10 @@
          * @param network The {@link Network} whose blocked status has changed.
          * @param blocked The blocked status of this {@link Network}.
          */
+        @FilteredCallback(methodId = METHOD_ONBLOCKEDSTATUSCHANGED_BOOL,
+                calledByCallbackId = CALLBACK_TRANSITIVE_CALLS_ONLY)
         public void onBlockedStatusChanged(@NonNull Network network, boolean blocked) {}
+        private static final int METHOD_ONBLOCKEDSTATUSCHANGED_BOOL = 13;
 
         /**
          * Called when access to the specified network is blocked or unblocked, or the reason for
@@ -4318,10 +4429,14 @@
          * @param blocked The blocked status of this {@link Network}.
          * @hide
          */
+        @FilteredCallback(methodId = METHOD_ONBLOCKEDSTATUSCHANGED_INT,
+                calledByCallbackId = CALLBACK_BLK_CHANGED,
+                mayCall = { METHOD_ONBLOCKEDSTATUSCHANGED_BOOL })
         @SystemApi(client = MODULE_LIBRARIES)
         public void onBlockedStatusChanged(@NonNull Network network, @BlockedReason int blocked) {
             onBlockedStatusChanged(network, blocked != 0);
         }
+        private static final int METHOD_ONBLOCKEDSTATUSCHANGED_INT = 14;
 
         private NetworkRequest networkRequest;
         private final int mFlags;
@@ -4349,6 +4464,7 @@
         }
     }
 
+    private static final int CALLBACK_TRANSITIVE_CALLS_ONLY     = 0;
     /** @hide */
     public static final int CALLBACK_PRECHECK                   = 1;
     /** @hide */
@@ -4374,9 +4490,11 @@
     /** @hide */
     public static final int CALLBACK_LOCAL_NETWORK_INFO_CHANGED = 12;
 
+
     /** @hide */
     public static String getCallbackName(int whichCallback) {
         switch (whichCallback) {
+            case CALLBACK_TRANSITIVE_CALLS_ONLY: return "CALLBACK_TRANSITIVE_CALLS_ONLY";
             case CALLBACK_PRECHECK:     return "CALLBACK_PRECHECK";
             case CALLBACK_AVAILABLE:    return "CALLBACK_AVAILABLE";
             case CALLBACK_LOSING:       return "CALLBACK_LOSING";
@@ -4394,6 +4512,68 @@
         }
     }
 
+    /** @hide */
+    @VisibleForTesting
+    public static class NetworkCallbackMethod {
+        @NonNull
+        public final String mName;
+        @NonNull
+        public final Class<?>[] mParameterTypes;
+        // Bitmask of CALLBACK_* that may transitively call this method.
+        public final int mCallbacksCallingThisMethod;
+
+        public NetworkCallbackMethod(@NonNull String name, @NonNull Class<?>[] parameterTypes,
+                int callbacksCallingThisMethod) {
+            mName = name;
+            mParameterTypes = parameterTypes;
+            mCallbacksCallingThisMethod = callbacksCallingThisMethod;
+        }
+    }
+
+    // Holder class for the list of NetworkCallbackMethod. This ensures the list is only created
+    // once on first usage, and not just on ConnectivityManager class initialization.
+    /** @hide */
+    @VisibleForTesting
+    public static class NetworkCallbackMethodsHolder {
+        public static final NetworkCallbackMethod[] NETWORK_CB_METHODS =
+                new NetworkCallbackMethod[] {
+                        method("onPreCheck", 1 << CALLBACK_PRECHECK, Network.class),
+                        // Note the final overload of onAvailable is not included, since it cannot
+                        // match any overridden method.
+                        method("onAvailable", 1 << CALLBACK_AVAILABLE, Network.class),
+                        method("onAvailable", 1 << CALLBACK_AVAILABLE,
+                                Network.class, NetworkCapabilities.class,
+                                LinkProperties.class, boolean.class),
+                        method("onLosing", 1 << CALLBACK_LOSING, Network.class, int.class),
+                        method("onLost", 1 << CALLBACK_LOST, Network.class),
+                        method("onUnavailable", 1 << CALLBACK_UNAVAIL),
+                        method("onCapabilitiesChanged",
+                                1 << CALLBACK_CAP_CHANGED | 1 << CALLBACK_AVAILABLE,
+                                Network.class, NetworkCapabilities.class),
+                        method("onLinkPropertiesChanged",
+                                1 << CALLBACK_IP_CHANGED | 1 << CALLBACK_AVAILABLE,
+                                Network.class, LinkProperties.class),
+                        method("onLocalNetworkInfoChanged",
+                                1 << CALLBACK_LOCAL_NETWORK_INFO_CHANGED | 1 << CALLBACK_AVAILABLE,
+                                Network.class, LocalNetworkInfo.class),
+                        method("onNetworkSuspended",
+                                1 << CALLBACK_SUSPENDED | 1 << CALLBACK_AVAILABLE, Network.class),
+                        method("onNetworkResumed",
+                                1 << CALLBACK_RESUMED, Network.class),
+                        method("onBlockedStatusChanged",
+                                1 << CALLBACK_BLK_CHANGED | 1 << CALLBACK_AVAILABLE,
+                                Network.class, boolean.class),
+                        method("onBlockedStatusChanged",
+                                1 << CALLBACK_BLK_CHANGED | 1 << CALLBACK_AVAILABLE,
+                                Network.class, int.class),
+                };
+
+        private static NetworkCallbackMethod method(
+                String name, int callbacksCallingThisMethod, Class<?>... args) {
+            return new NetworkCallbackMethod(name, args, callbacksCallingThisMethod);
+        }
+    }
+
     private static class CallbackHandler extends Handler {
         private static final String TAG = "ConnectivityManager.CallbackHandler";
         private static final boolean DBG = false;
@@ -4513,6 +4693,14 @@
         if (reqType != TRACK_DEFAULT && reqType != TRACK_SYSTEM_DEFAULT && need == null) {
             throw new IllegalArgumentException("null NetworkCapabilities");
         }
+
+
+        final boolean useDeclaredMethods = isFeatureEnabled(
+                FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS);
+        // Set all bits if the feature is disabled
+        int declaredMethodsFlag = useDeclaredMethods
+                ? tryGetDeclaredMethodsFlag(callback)
+                : NetworkCallback.DECLARED_METHODS_ALL;
         final NetworkRequest request;
         final String callingPackageName = mContext.getOpPackageName();
         try {
@@ -4529,11 +4717,12 @@
                 if (reqType == LISTEN) {
                     request = mService.listenForNetwork(
                             need, messenger, binder, callbackFlags, callingPackageName,
-                            getAttributionTag());
+                            getAttributionTag(), declaredMethodsFlag);
                 } else {
                     request = mService.requestNetwork(
                             asUid, need, reqType.ordinal(), messenger, timeoutMs, binder,
-                            legacyType, callbackFlags, callingPackageName, getAttributionTag());
+                            legacyType, callbackFlags, callingPackageName, getAttributionTag(),
+                            declaredMethodsFlag);
                 }
                 if (request != null) {
                     sCallbacks.put(request, callback);
@@ -4548,6 +4737,108 @@
         return request;
     }
 
+    private int tryGetDeclaredMethodsFlag(@NonNull NetworkCallback cb) {
+        if (!cb.mConstructorWasCalled) {
+            // Do not use the optimization if the callback was created via reflection or mocking,
+            // as for example with dexmaker-mockito-inline methods will be instrumented without
+            // using subclasses. This does not catch all cases as it is still possible to call the
+            // constructor when creating mocks, but by default constructors are not called in that
+            // case.
+            return NetworkCallback.DECLARED_METHODS_ALL;
+        }
+        try {
+            return getDeclaredMethodsFlag(cb.getClass());
+        } catch (LinkageError e) {
+            // This may happen if some methods reference inaccessible classes in their arguments
+            // (for example b/261807130).
+            Log.w(TAG, "Could not get methods from NetworkCallback class", e);
+            // Fall through
+        } catch (Throwable e) {
+            // Log.wtf would be best but this is in app process, so the TerribleFailureHandler may
+            // have unknown effects, possibly crashing the app (default behavior on eng builds or
+            // if the WTF_IS_FATAL setting is set).
+            Log.e(TAG, "Unexpected error while getting methods from NetworkCallback class", e);
+            // Fall through
+        }
+        return NetworkCallback.DECLARED_METHODS_ALL;
+    }
+
+    private static int getDeclaredMethodsFlag(@NonNull Class<? extends NetworkCallback> clazz) {
+        final Integer cachedFlags = sMethodFlagsCache.get(clazz);
+        // As this is not synchronized, it is possible that this method will calculate the
+        // flags for a given class multiple times, but that is fine. LruCache itself is thread-safe.
+        if (cachedFlags != null) {
+            return cachedFlags;
+        }
+
+        int flag = 0;
+        // This uses getMethods instead of getDeclaredMethods, to make sure that if A overrides B
+        // that overrides NetworkCallback, A.getMethods also returns methods declared by B.
+        for (Method classMethod : clazz.getMethods()) {
+            final Class<?> declaringClass = classMethod.getDeclaringClass();
+            if (declaringClass == NetworkCallback.class) {
+                // The callback is as defined by NetworkCallback and not overridden
+                continue;
+            }
+            if (declaringClass == Object.class) {
+                // Optimization: no need to try to match callbacks for methods declared by Object
+                continue;
+            }
+            flag |= getCallbackIdsCallingThisMethod(classMethod);
+        }
+
+        if (flag == 0) {
+            // dexmaker-mockito-inline (InlineDexmakerMockMaker), for example for mockito-extended,
+            // modifies bytecode of classes in-place to add hooks instead of creating subclasses,
+            // which would not be detected. When no method is found, fall back to enabling callbacks
+            // for all methods.
+            // This will not catch the case where both NetworkCallback bytecode is modified and a
+            // subclass of NetworkCallback that has some overridden methods are used. But this kind
+            // of bytecode injection is only possible in debuggable processes, with a JVMTI debug
+            // agent attached, so it should not cause real issues.
+            // There may be legitimate cases where an empty callback is filed with no method
+            // overridden, for example requestNetwork(requestForCell, new NetworkCallback()) which
+            // would ensure that one cell network stays up. But there is no way to differentiate
+            // such NetworkCallbacks from a mock that called the constructor, so this code will
+            // register the callback with DECLARED_METHODS_ALL and turn off the optimization in that
+            // case. Apps are not expected to do this often anyway since the usefulness is very
+            // limited.
+            flag = NetworkCallback.DECLARED_METHODS_ALL;
+        }
+        sMethodFlagsCache.put(clazz, flag);
+        return flag;
+    }
+
+    /**
+     * Find out which of the base methods in NetworkCallback will call this method.
+     *
+     * For example, in the case of onLinkPropertiesChanged, this will be
+     * (1 << CALLBACK_IP_CHANGED) | (1 << CALLBACK_AVAILABLE).
+     */
+    private static int getCallbackIdsCallingThisMethod(@NonNull Method method) {
+        for (NetworkCallbackMethod baseMethod : NetworkCallbackMethodsHolder.NETWORK_CB_METHODS) {
+            if (!baseMethod.mName.equals(method.getName())) {
+                continue;
+            }
+            Class<?>[] methodParams = method.getParameterTypes();
+
+            // As per JLS 8.4.8.1., a method m1 must have a subsignature of method m2 to override
+            // it. And as per JLS 8.4.2, this means the erasure of the signature of m2 must be the
+            // same as the signature of m1. Since type erasure is done at compile time, with
+            // reflection the erased types are already observed, so the (erased) parameter types
+            // must be equal.
+            // So for example a method that is identical to a NetworkCallback method, except with
+            // one parameter being a subclass of the parameter in the original method, will never
+            // be called since it is not an override (the erasure of the arguments are not the same)
+            // Therefore, the method is an override only if methodParams is exactly equal to
+            // the base method's parameter types.
+            if (Arrays.equals(baseMethod.mParameterTypes, methodParams)) {
+                return baseMethod.mCallbacksCallingThisMethod;
+            }
+        }
+        return 0;
+    }
+
     private boolean isFeatureEnabled(@ConnectivityManagerFeature long connectivityManagerFeature) {
         synchronized (mEnabledConnectivityManagerFeaturesLock) {
             if (mEnabledConnectivityManagerFeatures == null) {
diff --git a/framework/src/android/net/IConnectivityManager.aidl b/framework/src/android/net/IConnectivityManager.aidl
index f9de8ed..988cc92 100644
--- a/framework/src/android/net/IConnectivityManager.aidl
+++ b/framework/src/android/net/IConnectivityManager.aidl
@@ -153,7 +153,8 @@
 
     NetworkRequest requestNetwork(int uid, in NetworkCapabilities networkCapabilities, int reqType,
             in Messenger messenger, int timeoutSec, in IBinder binder, int legacy,
-            int callbackFlags, String callingPackageName, String callingAttributionTag);
+            int callbackFlags, String callingPackageName, String callingAttributionTag,
+            int declaredMethodsFlag);
 
     NetworkRequest pendingRequestForNetwork(in NetworkCapabilities networkCapabilities,
             in PendingIntent operation, String callingPackageName, String callingAttributionTag);
@@ -162,7 +163,7 @@
 
     NetworkRequest listenForNetwork(in NetworkCapabilities networkCapabilities,
             in Messenger messenger, in IBinder binder, int callbackFlags, String callingPackageName,
-            String callingAttributionTag);
+            String callingAttributionTag, int declaredMethodsFlag);
 
     void pendingListenForNetwork(in NetworkCapabilities networkCapabilities,
             in PendingIntent operation, String callingPackageName,
diff --git a/service/lint-baseline.xml b/service/lint-baseline.xml
index 3e11d52..b09589c 100644
--- a/service/lint-baseline.xml
+++ b/service/lint-baseline.xml
@@ -3,17 +3,6 @@
 
     <issue
         id="NewApi"
-        message="Call requires API level 33 (current min is 30): `getUidRule`"
-        errorLine1="        return BpfNetMapsReader.getUidRule(sUidOwnerMap, childChain, uid);"
-        errorLine2="                                ~~~~~~~~~~">
-        <location
-            file="packages/modules/Connectivity/service/src/com/android/server/BpfNetMaps.java"
-            line="643"
-            column="33"/>
-    </issue>
-
-    <issue
-        id="NewApi"
         message="Call requires API level 31 (current min is 30): `BpfBitmap`"
         errorLine1="                return new BpfBitmap(BLOCKED_PORTS_MAP_PATH);"
         errorLine2="                       ~~~~~~~~~~~~~">
diff --git a/service/src/com/android/server/BpfNetMaps.java b/service/src/com/android/server/BpfNetMaps.java
index b3e7d8c..44868b2d 100644
--- a/service/src/com/android/server/BpfNetMaps.java
+++ b/service/src/com/android/server/BpfNetMaps.java
@@ -580,6 +580,7 @@
      * @throws ServiceSpecificException in case of failure, with an error code indicating the
      *                                  cause of the failure.
      */
+    @RequiresApi(Build.VERSION_CODES.TIRAMISU)
     public int getUidRule(final int childChain, final int uid) {
         return BpfNetMapsUtils.getUidRule(sUidOwnerMap, childChain, uid);
     }
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index 3dee305..2a3058c 100755
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -46,6 +46,7 @@
 import static android.net.ConnectivityManager.FIREWALL_RULE_ALLOW;
 import static android.net.ConnectivityManager.FIREWALL_RULE_DEFAULT;
 import static android.net.ConnectivityManager.FIREWALL_RULE_DENY;
+import static android.net.ConnectivityManager.NetworkCallback.DECLARED_METHODS_NONE;
 import static android.net.ConnectivityManager.TYPE_BLUETOOTH;
 import static android.net.ConnectivityManager.TYPE_ETHERNET;
 import static android.net.ConnectivityManager.TYPE_MOBILE;
@@ -65,6 +66,7 @@
 import static android.net.ConnectivityManager.TYPE_WIFI_P2P;
 import static android.net.ConnectivityManager.getNetworkTypeName;
 import static android.net.ConnectivityManager.isNetworkTypeValid;
+import static android.net.ConnectivityManager.NetworkCallback.DECLARED_METHODS_ALL;
 import static android.net.ConnectivitySettingsManager.PRIVATE_DNS_MODE_OPPORTUNISTIC;
 import static android.net.INetd.PERMISSION_INTERNET;
 import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_PRIVDNS;
@@ -136,8 +138,6 @@
 import static com.android.server.connectivity.ConnectivityFlags.REQUEST_RESTRICTED_WIFI;
 import static com.android.server.connectivity.ConnectivityFlags.INGRESS_TO_VPN_ADDRESS_FILTERING;
 
-import static java.util.Map.Entry;
-
 import android.Manifest;
 import android.annotation.CheckResult;
 import android.annotation.NonNull;
@@ -1788,7 +1788,7 @@
         mDefaultRequest = new NetworkRequestInfo(
                 Process.myUid(), defaultInternetRequest, null,
                 null /* binder */, NetworkCallback.FLAG_INCLUDE_LOCATION_INFO,
-                null /* attributionTags */);
+                null /* attributionTags */, DECLARED_METHODS_NONE);
         mNetworkRequests.put(defaultInternetRequest, mDefaultRequest);
         mDefaultNetworkRequests.add(mDefaultRequest);
         mNetworkRequestInfoLogs.log("REGISTER " + mDefaultRequest);
@@ -2175,7 +2175,7 @@
             handleRegisterNetworkRequest(new NetworkRequestInfo(
                     Process.myUid(), networkRequest, null /* messenger */, null /* binder */,
                     NetworkCallback.FLAG_INCLUDE_LOCATION_INFO,
-                    null /* attributionTags */));
+                    null /* attributionTags */, DECLARED_METHODS_NONE));
         } else {
             handleReleaseNetworkRequest(networkRequest, Process.SYSTEM_UID,
                     /* callOnUnavailable */ false);
@@ -7577,6 +7577,8 @@
         // Preference order of this request.
         final int mPreferenceOrder;
 
+        final int mDeclaredMethodsFlags;
+
         // In order to preserve the mapping of NetworkRequest-to-callback when apps register
         // callbacks using a returned NetworkRequest, the original NetworkRequest needs to be
         // maintained for keying off of. This is only a concern when the original nri
@@ -7630,21 +7632,22 @@
             mCallbackFlags = NetworkCallback.FLAG_NONE;
             mCallingAttributionTag = callingAttributionTag;
             mPreferenceOrder = preferenceOrder;
+            mDeclaredMethodsFlags = DECLARED_METHODS_NONE;
         }
 
         NetworkRequestInfo(int asUid, @NonNull final NetworkRequest r, @Nullable final Messenger m,
                 @Nullable final IBinder binder,
                 @NetworkCallback.Flag int callbackFlags,
-                @Nullable String callingAttributionTag) {
+                @Nullable String callingAttributionTag, int declaredMethodsFlags) {
             this(asUid, Collections.singletonList(r), r, m, binder, callbackFlags,
-                    callingAttributionTag);
+                    callingAttributionTag, declaredMethodsFlags);
         }
 
         NetworkRequestInfo(int asUid, @NonNull final List<NetworkRequest> r,
                 @NonNull final NetworkRequest requestForCallback, @Nullable final Messenger m,
                 @Nullable final IBinder binder,
                 @NetworkCallback.Flag int callbackFlags,
-                @Nullable String callingAttributionTag) {
+                @Nullable String callingAttributionTag, int declaredMethodsFlags) {
             super();
             ensureAllNetworkRequestsHaveType(r);
             mRequests = initializeRequests(r);
@@ -7659,6 +7662,7 @@
             mCallbackFlags = callbackFlags;
             mCallingAttributionTag = callingAttributionTag;
             mPreferenceOrder = PREFERENCE_ORDER_INVALID;
+            mDeclaredMethodsFlags = declaredMethodsFlags;
             linkDeathRecipient();
         }
 
@@ -7699,6 +7703,7 @@
             mCallingAttributionTag = nri.mCallingAttributionTag;
             mUidTrackedForBlockedStatus = nri.mUidTrackedForBlockedStatus;
             mPreferenceOrder = PREFERENCE_ORDER_INVALID;
+            mDeclaredMethodsFlags = nri.mDeclaredMethodsFlags;
             linkDeathRecipient();
         }
 
@@ -7786,7 +7791,8 @@
                     + (mPendingIntent == null ? "" : " to trigger " + mPendingIntent)
                     + " callback flags: " + mCallbackFlags
                     + " order: " + mPreferenceOrder
-                    + " isUidTracked: " + mUidTrackedForBlockedStatus;
+                    + " isUidTracked: " + mUidTrackedForBlockedStatus
+                    + " declaredMethods: 0x" + Integer.toHexString(mDeclaredMethodsFlags);
         }
     }
 
@@ -7924,7 +7930,21 @@
     public NetworkRequest requestNetwork(int asUid, NetworkCapabilities networkCapabilities,
             int reqTypeInt, Messenger messenger, int timeoutMs, final IBinder binder,
             int legacyType, int callbackFlags, @NonNull String callingPackageName,
-            @Nullable String callingAttributionTag) {
+            @Nullable String callingAttributionTag, int declaredMethodsFlag) {
+        if (declaredMethodsFlag == 0) {
+            // This could happen if raw binder calls are used to call the previous overload of
+            // requestNetwork, as missing int arguments in a binder call end up as 0
+            // (Parcel.readInt returns 0 at the end of a parcel). Such raw calls this would be
+            // really unexpected bad behavior from the caller though.
+            // TODO: remove after verifying this does not happen. This could allow enabling the
+            // optimization for callbacks that do not override any method (right now they use
+            // DECLARED_METHODS_ALL), if it is OK to break NetworkCallbacks created using
+            // dexmaker-mockito-inline and either spy() or MockSettings.useConstructor (see
+            // comment in ConnectivityManager which sets the flag to DECLARED_METHODS_ALL).
+            Log.wtf(TAG, "requestNetwork called without declaredMethodsFlag from "
+                    + callingPackageName);
+            declaredMethodsFlag = DECLARED_METHODS_ALL;
+        }
         if (legacyType != TYPE_NONE && !hasNetworkStackPermission()) {
             if (isTargetSdkAtleast(Build.VERSION_CODES.M, mDeps.getCallingUid(),
                     callingPackageName)) {
@@ -8016,7 +8036,7 @@
                 nextNetworkRequestId(), reqType);
         final NetworkRequestInfo nri = getNriToRegister(
                 asUid, networkRequest, messenger, binder, callbackFlags,
-                callingAttributionTag);
+                callingAttributionTag, declaredMethodsFlag);
         if (DBG) log("requestNetwork for " + nri);
         trackUidAndRegisterNetworkRequest(EVENT_REGISTER_NETWORK_REQUEST, nri);
         if (timeoutMs > 0) {
@@ -8042,7 +8062,7 @@
     private NetworkRequestInfo getNriToRegister(final int asUid, @NonNull final NetworkRequest nr,
             @Nullable final Messenger msgr, @Nullable final IBinder binder,
             @NetworkCallback.Flag int callbackFlags,
-            @Nullable String callingAttributionTag) {
+            @Nullable String callingAttributionTag, int declaredMethodsFlags) {
         final List<NetworkRequest> requests;
         if (NetworkRequest.Type.TRACK_DEFAULT == nr.type) {
             requests = copyDefaultNetworkRequestsForUid(
@@ -8051,7 +8071,8 @@
             requests = Collections.singletonList(nr);
         }
         return new NetworkRequestInfo(
-                asUid, requests, nr, msgr, binder, callbackFlags, callingAttributionTag);
+                asUid, requests, nr, msgr, binder, callbackFlags, callingAttributionTag,
+                declaredMethodsFlags);
     }
 
     private boolean shouldCheckCapabilitiesDeclaration(
@@ -8341,7 +8362,13 @@
     public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities,
             Messenger messenger, IBinder binder,
             @NetworkCallback.Flag int callbackFlags,
-            @NonNull String callingPackageName, @NonNull String callingAttributionTag) {
+            @NonNull String callingPackageName, @NonNull String callingAttributionTag,
+            int declaredMethodsFlag) {
+        if (declaredMethodsFlag == 0) {
+            Log.wtf(TAG, "listenForNetwork called without declaredMethodsFlag from "
+                    + callingPackageName);
+            declaredMethodsFlag = DECLARED_METHODS_ALL;
+        }
         final int callingUid = mDeps.getCallingUid();
         if (!hasWifiNetworkListenPermission(networkCapabilities)) {
             enforceAccessPermission();
@@ -8363,7 +8390,7 @@
                 NetworkRequest.Type.LISTEN);
         NetworkRequestInfo nri =
                 new NetworkRequestInfo(callingUid, networkRequest, messenger, binder, callbackFlags,
-                        callingAttributionTag);
+                        callingAttributionTag, declaredMethodsFlag);
         if (VDBG) log("listenForNetwork for " + nri);
 
         trackUidAndRegisterNetworkRequest(EVENT_REGISTER_NETWORK_LISTENER, nri);
@@ -9805,7 +9832,8 @@
             configBuilder.setUpstreamSelector(nr);
             final NetworkRequestInfo nri = new NetworkRequestInfo(
                     nai.creatorUid, nr, null /* messenger */, null /* binder */,
-                    0 /* callbackFlags */, null /* attributionTag */);
+                    0 /* callbackFlags */, null /* attributionTag */,
+                    DECLARED_METHODS_NONE);
             if (null != oldSatisfier) {
                 // Set the old satisfier in the new NRI so that the rematch will see any changes
                 nri.setSatisfier(oldSatisfier, nr);
@@ -10176,6 +10204,11 @@
             // are Type.LISTEN, but should not have NetworkCallbacks invoked.
             return;
         }
+        if (mUseDeclaredMethodsForCallbacksEnabled
+                && (nri.mDeclaredMethodsFlags & (1 << notificationType)) == 0) {
+            // No need to send the notification as the recipient method is not overridden
+            return;
+        }
         final Bundle bundle = new Bundle();
         // TODO b/177608132: make sure callbacks are indexed by NRIs and not NetworkRequest objects.
         // TODO: check if defensive copies of data is needed.
@@ -11800,6 +11833,10 @@
                         return 0;
                     }
                     case "get-package-networking-enabled": {
+                        if (!mDeps.isAtLeastT()) {
+                            throw new UnsupportedOperationException(
+                                    "This command is not supported on T-");
+                        }
                         final String packageName = getNextArg();
                         final int rule = getPackageFirewallRule(
                                 ConnectivityManager.FIREWALL_CHAIN_OEM_DENY_3, packageName);
@@ -11829,6 +11866,10 @@
                         return 0;
                     }
                     case "get-background-networking-enabled-for-uid": {
+                        if (!mDeps.isAtLeastT()) {
+                            throw new UnsupportedOperationException(
+                                    "This command is not supported on T-");
+                        }
                         final Integer uid = parseIntegerArgument(getNextArg());
                         if (null == uid) {
                             onHelp();
@@ -13877,6 +13918,7 @@
         }
     }
 
+    @RequiresApi(Build.VERSION_CODES.TIRAMISU)
     private int getPackageFirewallRule(final int chain, final String packageName)
             throws PackageManager.NameNotFoundException {
         final PackageManager pm = mContext.getPackageManager();
@@ -13884,6 +13926,7 @@
         return getUidFirewallRule(chain, appId);
     }
 
+    @RequiresApi(Build.VERSION_CODES.TIRAMISU)
     @Override
     public int getUidFirewallRule(final int chain, final int uid) {
         enforceNetworkStackOrSettingsPermission();
diff --git a/staticlibs/Android.bp b/staticlibs/Android.bp
index 71f388d..34ea9ab 100644
--- a/staticlibs/Android.bp
+++ b/staticlibs/Android.bp
@@ -282,7 +282,7 @@
         "//apex_available:platform",
     ],
     lint: {
-        baseline_filename: "lint-baseline.xml",
+        strict_updatability_linting: true,
         error_checks: ["NewApi"],
     },
 }
diff --git a/staticlibs/device/com/android/net/module/util/SocketUtils.java b/staticlibs/device/com/android/net/module/util/SocketUtils.java
index 5e6a6c6..51671a6 100644
--- a/staticlibs/device/com/android/net/module/util/SocketUtils.java
+++ b/staticlibs/device/com/android/net/module/util/SocketUtils.java
@@ -19,8 +19,7 @@
 import static android.net.util.SocketUtils.closeSocket;
 
 import android.annotation.NonNull;
-import android.annotation.RequiresApi;
-import android.os.Build;
+import android.annotation.SuppressLint;
 import android.system.NetlinkSocketAddress;
 
 import java.io.FileDescriptor;
@@ -41,7 +40,11 @@
     /**
      * Make a socket address to communicate with netlink.
      */
-    @NonNull @RequiresApi(Build.VERSION_CODES.S)
+    // NetlinkSocketAddress was CorePlatformApi on R and linter warns this is available on S+.
+    // android.net.util.SocketUtils.makeNetlinkSocketAddress can be used instead, but this method
+    // has been used on R, so suppress the linter and keep as it is.
+    @SuppressLint("NewApi")
+    @NonNull
     public static SocketAddress makeNetlinkSocketAddress(int portId, int groupsMask) {
         return new NetlinkSocketAddress(portId, groupsMask);
     }
diff --git a/staticlibs/lint-baseline.xml b/staticlibs/lint-baseline.xml
deleted file mode 100644
index 2ee3a43..0000000
--- a/staticlibs/lint-baseline.xml
+++ /dev/null
@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<issues format="6" by="lint 8.4.0-alpha04" type="baseline" client="" dependencies="true" name="" variant="all" version="8.4.0-alpha04">
-
-    <issue
-        id="NewApi"
-        message="Call requires API level 31 (current min is 30): `makeNetlinkSocketAddress`"
-        errorLine1="            Os.bind(fd, makeNetlinkSocketAddress(0, mBindGroups));"
-        errorLine2="                        ~~~~~~~~~~~~~~~~~~~~~~~~">
-        <location
-            file="packages/modules/Connectivity/staticlibs/device/com/android/net/module/util/ip/NetlinkMonitor.java"
-            line="111"
-            column="25"/>
-    </issue>
-
-</issues>
diff --git a/staticlibs/tests/unit/Android.bp b/staticlibs/tests/unit/Android.bp
index fa466f8..cf67a82 100644
--- a/staticlibs/tests/unit/Android.bp
+++ b/staticlibs/tests/unit/Android.bp
@@ -39,6 +39,7 @@
         "//packages/modules/NetworkStack/tests/integration",
     ],
     lint: {
+        strict_updatability_linting: true,
         test: true,
     },
 }
@@ -56,4 +57,7 @@
     ],
     jarjar_rules: "jarjar-rules.txt",
     test_suites: ["device-tests"],
+    lint: {
+        strict_updatability_linting: true,
+    },
 }
diff --git a/tests/unit/java/android/net/ConnectivityManagerTest.java b/tests/unit/java/android/net/ConnectivityManagerTest.java
index b71a46f..9a77c89 100644
--- a/tests/unit/java/android/net/ConnectivityManagerTest.java
+++ b/tests/unit/java/android/net/ConnectivityManagerTest.java
@@ -52,6 +52,7 @@
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.anyInt;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.inOrder;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
@@ -72,6 +73,7 @@
 import android.os.Messenger;
 import android.os.Process;
 
+import androidx.annotation.NonNull;
 import androidx.test.filters.SmallTest;
 
 import com.android.internal.util.test.BroadcastInterceptingContext;
@@ -83,6 +85,7 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
+import org.mockito.InOrder;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -240,7 +243,7 @@
 
         // register callback
         when(mService.requestNetwork(anyInt(), any(), anyInt(), captor.capture(), anyInt(), any(),
-                anyInt(), anyInt(), any(), nullable(String.class))).thenReturn(request);
+                anyInt(), anyInt(), any(), nullable(String.class), anyInt())).thenReturn(request);
         manager.requestNetwork(request, callback, handler);
 
         // callback triggers
@@ -269,7 +272,7 @@
 
         // register callback
         when(mService.requestNetwork(anyInt(), any(), anyInt(), captor.capture(), anyInt(), any(),
-                anyInt(), anyInt(), any(), nullable(String.class))).thenReturn(req1);
+                anyInt(), anyInt(), any(), nullable(String.class), anyInt())).thenReturn(req1);
         manager.requestNetwork(req1, callback, handler);
 
         // callback triggers
@@ -287,7 +290,7 @@
 
         // callback can be registered again
         when(mService.requestNetwork(anyInt(), any(), anyInt(), captor.capture(), anyInt(), any(),
-                anyInt(), anyInt(), any(), nullable(String.class))).thenReturn(req2);
+                anyInt(), anyInt(), any(), nullable(String.class), anyInt())).thenReturn(req2);
         manager.requestNetwork(req2, callback, handler);
 
         // callback triggers
@@ -311,7 +314,7 @@
 
         when(mCtx.getApplicationInfo()).thenReturn(info);
         when(mService.requestNetwork(anyInt(), any(), anyInt(), any(), anyInt(), any(), anyInt(),
-                anyInt(), any(), nullable(String.class))).thenReturn(request);
+                anyInt(), any(), nullable(String.class), anyInt())).thenReturn(request);
 
         Handler handler = new Handler(Looper.getMainLooper());
         manager.requestNetwork(request, callback, handler);
@@ -403,15 +406,15 @@
         manager.requestNetwork(request, callback);
         verify(mService).requestNetwork(eq(Process.INVALID_UID), eq(request.networkCapabilities),
                 eq(REQUEST.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
         reset(mService);
 
         // Verify that register network callback does not calls requestNetwork at all.
         manager.registerNetworkCallback(request, callback);
         verify(mService, never()).requestNetwork(anyInt(), any(), anyInt(), any(), anyInt(), any(),
-                anyInt(), anyInt(), any(), any());
+                anyInt(), anyInt(), any(), any(), anyInt());
         verify(mService).listenForNetwork(eq(request.networkCapabilities), any(), any(), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
         reset(mService);
 
         Handler handler = new Handler(ConnectivityThread.getInstanceLooper());
@@ -419,24 +422,24 @@
         manager.registerDefaultNetworkCallback(callback);
         verify(mService).requestNetwork(eq(Process.INVALID_UID), eq(null),
                 eq(TRACK_DEFAULT.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
         reset(mService);
 
         manager.registerDefaultNetworkCallbackForUid(42, callback, handler);
         verify(mService).requestNetwork(eq(42), eq(null),
                 eq(TRACK_DEFAULT.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
 
         manager.requestBackgroundNetwork(request, callback, handler);
         verify(mService).requestNetwork(eq(Process.INVALID_UID), eq(request.networkCapabilities),
                 eq(BACKGROUND_REQUEST.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
         reset(mService);
 
         manager.registerSystemDefaultNetworkCallback(callback, handler);
         verify(mService).requestNetwork(eq(Process.INVALID_UID), eq(null),
                 eq(TRACK_SYSTEM_DEFAULT.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
-                eq(testPkgName), eq(testAttributionTag));
+                eq(testPkgName), eq(testAttributionTag), anyInt());
         reset(mService);
     }
 
@@ -516,16 +519,154 @@
                     + " attempts", ref.get());
     }
 
-    private <T> void mockService(Class<T> clazz, String name, T service) {
-        doReturn(service).when(mCtx).getSystemService(name);
-        doReturn(name).when(mCtx).getSystemServiceName(clazz);
+    @Test
+    public void testDeclaredMethodsFlag_requestWithMixedMethods_RegistrationFlagsMatch()
+            throws Exception {
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
 
-        // If the test suite uses the inline mock maker library, such as for coverage tests,
-        // then the final version of getSystemService must also be mocked, as the real
-        // method will not be called by the test and null object is returned since no mock.
-        // Otherwise, mocking a final method will fail the test.
-        if (mCtx.getSystemService(clazz) == null) {
-            doReturn(service).when(mCtx).getSystemService(clazz);
-        }
+        final NetworkRequest request = new NetworkRequest.Builder().build();
+        final NetworkCallback callback1 = new ConnectivityManager.NetworkCallback() {
+            @Override
+            public void onPreCheck(@NonNull Network network) {}
+            @Override
+            public void onAvailable(@NonNull Network network) {}
+            @Override
+            public void onLost(@NonNull Network network) {}
+            @Override
+            public void onCapabilitiesChanged(@NonNull Network network,
+                    @NonNull NetworkCapabilities networkCapabilities) {}
+            @Override
+            public void onLocalNetworkInfoChanged(@NonNull Network network,
+                    @NonNull LocalNetworkInfo localNetworkInfo) {}
+            @Override
+            public void onNetworkResumed(@NonNull Network network) {}
+            @Override
+            public void onBlockedStatusChanged(@NonNull Network network, int blocked) {}
+        };
+        manager.requestNetwork(request, callback1);
+
+        final InOrder inOrder = inOrder(mService);
+        inOrder.verify(mService).requestNetwork(
+                anyInt(), any(), anyInt(), any(), anyInt(), any(), anyInt(), anyInt(), any(), any(),
+                eq(1 << ConnectivityManager.CALLBACK_PRECHECK
+                        | 1 << ConnectivityManager.CALLBACK_AVAILABLE
+                        | 1 << ConnectivityManager.CALLBACK_LOST
+                        | 1 << ConnectivityManager.CALLBACK_CAP_CHANGED
+                        | 1 << ConnectivityManager.CALLBACK_LOCAL_NETWORK_INFO_CHANGED
+                        | 1 << ConnectivityManager.CALLBACK_RESUMED
+                        | 1 << ConnectivityManager.CALLBACK_BLK_CHANGED));
+    }
+
+    @Test
+    public void testDeclaredMethodsFlag_listenWithMixedMethods_RegistrationFlagsMatch()
+            throws Exception {
+        final NetworkRequest request = new NetworkRequest.Builder().build();
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
+
+        final NetworkCallback callback2 = new ConnectivityManager.NetworkCallback() {
+            @Override
+            public void onLosing(@NonNull Network network, int maxMsToLive) {}
+            @Override
+            public void onUnavailable() {}
+            @Override
+            public void onLinkPropertiesChanged(@NonNull Network network,
+                    @NonNull LinkProperties linkProperties) {}
+            @Override
+            public void onNetworkSuspended(@NonNull Network network) {}
+        };
+        manager.registerNetworkCallback(request, callback2);
+        // Call a second time with the same callback to exercise caching
+        manager.registerNetworkCallback(request, callback2);
+
+        verify(mService, times(2)).listenForNetwork(
+                any(), any(), any(), anyInt(), any(), any(),
+                eq(1 << ConnectivityManager.CALLBACK_LOSING
+                        // AVAILABLE calls IP_CHANGED and SUSPENDED so it gets added
+                        | 1 << ConnectivityManager.CALLBACK_AVAILABLE
+                        | 1 << ConnectivityManager.CALLBACK_UNAVAIL
+                        | 1 << ConnectivityManager.CALLBACK_IP_CHANGED
+                        | 1 << ConnectivityManager.CALLBACK_SUSPENDED));
+    }
+
+    @Test
+    public void testDeclaredMethodsFlag_requestWithHiddenAvailableCallback_RegistrationFlagsMatch()
+            throws Exception {
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
+
+        final NetworkCallback hiddenOnAvailableCb = new ConnectivityManager.NetworkCallback() {
+            // This overload is @hide but might still be used by (bad) apps
+            @Override
+            public void onAvailable(@NonNull Network network,
+                    @NonNull NetworkCapabilities networkCapabilities,
+                    @NonNull LinkProperties linkProperties, boolean blocked) {}
+        };
+        manager.registerDefaultNetworkCallback(hiddenOnAvailableCb);
+
+        verify(mService).requestNetwork(
+                anyInt(), any(), anyInt(), any(), anyInt(), any(), anyInt(), anyInt(), any(), any(),
+                eq(1 << ConnectivityManager.CALLBACK_AVAILABLE));
+    }
+
+    public static class NetworkCallbackWithOnLostOnly extends NetworkCallback {
+        @Override
+        public void onLost(@NonNull Network network) {}
+    }
+
+    @Test
+    public void testDeclaredMethodsFlag_requestWithoutAvailableCallback_RegistrationFlagsMatch()
+            throws Exception {
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
+        final Handler handler = new Handler(Looper.getMainLooper());
+
+        final NetworkCallback noOnAvailableCb = new NetworkCallbackWithOnLostOnly();
+        manager.registerSystemDefaultNetworkCallback(noOnAvailableCb, handler);
+
+        verify(mService).requestNetwork(
+                anyInt(), any(), anyInt(), any(), anyInt(), any(), anyInt(), anyInt(), any(), any(),
+                eq(1 << ConnectivityManager.CALLBACK_LOST));
+    }
+
+    @Test
+    public void testDeclaredMethodsFlag_listenWithMock_OptimizationDisabled()
+            throws Exception {
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
+        final Handler handler = new Handler(Looper.getMainLooper());
+
+        final NetworkRequest request = new NetworkRequest.Builder().build();
+        manager.registerNetworkCallback(request, mock(NetworkCallbackWithOnLostOnly.class),
+                handler);
+
+        verify(mService).listenForNetwork(
+                any(), any(), any(), anyInt(), any(), any(),
+                // Mock that does not call the constructor -> do not use the optimization
+                eq(~0));
+    }
+
+    @Test
+    public void testDeclaredMethodsFlag_requestWitNoCallback_OptimizationDisabled()
+            throws Exception {
+        doReturn(ConnectivityManager.FEATURE_USE_DECLARED_METHODS_FOR_CALLBACKS)
+                .when(mService).getEnabledConnectivityManagerFeatures();
+        final ConnectivityManager manager = new ConnectivityManager(mCtx, mService);
+        final Handler handler = new Handler(Looper.getMainLooper());
+
+        final NetworkRequest request = new NetworkRequest.Builder().build();
+        final NetworkCallback noCallbackAtAll = new ConnectivityManager.NetworkCallback() {};
+        manager.requestBackgroundNetwork(request, noCallbackAtAll, handler);
+
+        verify(mService).requestNetwork(
+                anyInt(), any(), anyInt(), any(), anyInt(), any(), anyInt(), anyInt(), any(), any(),
+                // No callbacks overridden -> do not use the optimization
+                eq(~0));
     }
 }
diff --git a/tests/unit/java/android/net/NetworkCallbackFlagsTest.kt b/tests/unit/java/android/net/NetworkCallbackFlagsTest.kt
new file mode 100644
index 0000000..af06a64
--- /dev/null
+++ b/tests/unit/java/android/net/NetworkCallbackFlagsTest.kt
@@ -0,0 +1,212 @@
+/*
+ * 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 android.net
+
+import android.net.ConnectivityManager.NetworkCallback
+import android.net.ConnectivityManager.NetworkCallbackMethodsHolder
+import android.os.Build
+import com.android.testutils.DevSdkIgnoreRule
+import com.android.testutils.DevSdkIgnoreRunner
+import java.lang.reflect.Method
+import java.lang.reflect.Modifier
+import kotlin.test.assertEquals
+import kotlin.test.assertNotNull
+import kotlin.test.fail
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito.any
+import org.mockito.Mockito.doCallRealMethod
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.mockingDetails
+
+@DevSdkIgnoreRule.IgnoreUpTo(Build.VERSION_CODES.R)
+@RunWith(DevSdkIgnoreRunner::class)
+class NetworkCallbackFlagsTest {
+
+    // To avoid developers forgetting to update NETWORK_CB_METHODS when modifying NetworkCallbacks,
+    // or using wrong values, calculate it from annotations here and verify that it matches.
+    // This avoids the runtime cost of reflection, but still ensures that the list is correct.
+    @Test
+    fun testNetworkCallbackMethods_calculateFromAnnotations_matchesHardcodedList() {
+        val calculatedMethods = getNetworkCallbackMethodsFromAnnotations()
+        assertEquals(
+            calculatedMethods.toSet(),
+            NetworkCallbackMethodsHolder.NETWORK_CB_METHODS.map {
+                NetworkCallbackMethodWithEquals(
+                    it.mName,
+                    it.mParameterTypes.toList(),
+                    callbacksCallingThisMethod = it.mCallbacksCallingThisMethod
+                )
+            }.toSet()
+        )
+    }
+
+    data class NetworkCallbackMethodWithEquals(
+        val name: String,
+        val parameterTypes: List<Class<*>>,
+        val callbacksCallingThisMethod: Int
+    )
+
+    data class NetworkCallbackMethodBuilder(
+        val name: String,
+        val parameterTypes: List<Class<*>>,
+        val isFinal: Boolean,
+        val methodId: Int,
+        val mayCall: Set<Int>?,
+        var callbacksCallingThisMethod: Int
+    ) {
+        fun build() = NetworkCallbackMethodWithEquals(
+            name,
+            parameterTypes,
+            callbacksCallingThisMethod
+        )
+    }
+
+    /**
+     * Build [NetworkCallbackMethodsHolder.NETWORK_CB_METHODS] from [NetworkCallback] annotations.
+     */
+    private fun getNetworkCallbackMethodsFromAnnotations(): List<NetworkCallbackMethodWithEquals> {
+        val parsedMethods = mutableListOf<NetworkCallbackMethodBuilder>()
+        val methods = NetworkCallback::class.java.declaredMethods
+        methods.forEach { method ->
+            val cb = method.getAnnotation(
+                NetworkCallback.FilteredCallback::class.java
+            ) ?: return@forEach
+            val callbacksCallingThisMethod = if (cb.calledByCallbackId == 0) {
+                0
+            } else {
+                1 shl cb.calledByCallbackId
+            }
+            parsedMethods.add(
+                NetworkCallbackMethodBuilder(
+                    method.name,
+                    method.parameterTypes.toList(),
+                    Modifier.isFinal(method.modifiers),
+                    cb.methodId,
+                    cb.mayCall.toSet(),
+                    callbacksCallingThisMethod
+                )
+            )
+        }
+
+        // Propagate callbacksCallingThisMethod for transitive calls
+        do {
+            var hadChange = false
+            parsedMethods.forEach { caller ->
+                parsedMethods.forEach { callee ->
+                    if (caller.mayCall?.contains(callee.methodId) == true) {
+                        // Callbacks that call the caller also cause calls to the callee. So
+                        // callbacksCallingThisMethod for the callee should include
+                        // callbacksCallingThisMethod from the caller.
+                        val newValue =
+                            caller.callbacksCallingThisMethod or callee.callbacksCallingThisMethod
+                        hadChange = hadChange || callee.callbacksCallingThisMethod != newValue
+                        callee.callbacksCallingThisMethod = newValue
+                    }
+                }
+            }
+        } while (hadChange)
+
+        // Final methods may affect the flags for transitive calls, but cannot be overridden, so do
+        // not need to be in the list (no overridden method in NetworkCallback will match them).
+        return parsedMethods.filter { !it.isFinal }.map { it.build() }
+    }
+
+    @Test
+    fun testMethodsAreAnnotated() {
+        val annotations = NetworkCallback::class.java.declaredMethods.mapNotNull { method ->
+            if (!Modifier.isPublic(method.modifiers) && !Modifier.isProtected(method.modifiers)) {
+                return@mapNotNull null
+            }
+            val annotation = method.getAnnotation(NetworkCallback.FilteredCallback::class.java)
+            assertNotNull(annotation, "$method is missing the @FilteredCallback annotation")
+            return@mapNotNull annotation
+        }
+
+        annotations.groupingBy { it.methodId }.eachCount().forEach { (methodId, cnt) ->
+            assertEquals(1, cnt, "Method ID $methodId is used more than once in @FilteredCallback")
+        }
+    }
+
+    @Test
+    fun testObviousCalleesAreInAnnotation() {
+        NetworkCallback::class.java.declaredMethods.forEach { method ->
+            val annotation = method.getAnnotation(NetworkCallback.FilteredCallback::class.java)
+                ?: return@forEach
+            val missingFlags = getObviousCallees(method).toMutableSet().apply {
+                removeAll(annotation.mayCall.toSet())
+            }
+            val msg = "@FilteredCallback on $method is missing flags " +
+                    "$missingFlags in mayCall. There may be other " +
+                    "calls that are not detected if they are done conditionally."
+            assertEquals(emptySet(), missingFlags, msg)
+        }
+    }
+
+    /**
+     * Invoke the specified NetworkCallback method with mock arguments, return a set of transitively
+     * called methods.
+     *
+     * This provides an idea of which methods are transitively called by the specified method. It's
+     * not perfect as some callees could be called or not depending on the exact values of the mock
+     * arguments that are passed in (for example, onAvailable calls onNetworkSuspended only if the
+     * capabilities lack the NOT_SUSPENDED capability), but it should catch obvious forgotten calls.
+     */
+    private fun getObviousCallees(method: Method): Set<Int> {
+        // Create a mock NetworkCallback that mocks all methods except the one specified by the
+        // caller.
+        val mockCallback = mock(NetworkCallback::class.java)
+
+        if (!Modifier.isFinal(method.modifiers) ||
+            // The mock class will be NetworkCallback (not a subclass) if using mockito-inline,
+            // which mocks final methods too
+            mockCallback.javaClass == NetworkCallback::class.java) {
+            doCallRealMethod().`when`(mockCallback).let { mockObj ->
+                val anyArgs = method.parameterTypes.map { any(it) }
+                method.invoke(mockObj, *anyArgs.toTypedArray())
+            }
+        }
+
+        // Invoke the target method with mock parameters
+        val mockParameters = method.parameterTypes.map { getMockFor(method, it) }
+        method.invoke(mockCallback, *mockParameters.toTypedArray())
+
+        // Aggregate callees
+        val mockingDetails = mockingDetails(mockCallback)
+        return mockingDetails.invocations.mapNotNull { inv ->
+            if (inv.method == method) {
+                null
+            } else {
+                inv.method.getAnnotation(NetworkCallback.FilteredCallback::class.java)?.methodId
+            }
+        }.toSet()
+    }
+
+    private fun getMockFor(method: Method, c: Class<*>): Any {
+        if (!c.isPrimitive && !Modifier.isFinal(c.modifiers)) {
+            return mock(c)
+        }
+        return when (c) {
+            NetworkCapabilities::class.java -> NetworkCapabilities()
+            LinkProperties::class.java -> LinkProperties()
+            LocalNetworkInfo::class.java -> LocalNetworkInfo(null)
+            Boolean::class.java -> false
+            Int::class.java -> 0
+            else -> fail("No mock set for parameter type $c used in $method")
+        }
+    }
+}
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index 8526a9a..be7f2a3 100755
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -2871,7 +2871,7 @@
         };
         final NetworkRequest request = mService.listenForNetwork(caps, messenger, binder,
                 NetworkCallback.FLAG_NONE, mContext.getOpPackageName(),
-                mContext.getAttributionTag());
+                mContext.getAttributionTag(), ~0 /* declaredMethodsFlag */);
         mService.releaseNetworkRequest(request);
         deathRecipient.get().binderDied();
         // Wait for the release message to be processed.
@@ -5407,7 +5407,7 @@
             mService.requestNetwork(Process.INVALID_UID, networkCapabilities,
                     NetworkRequest.Type.REQUEST.ordinal(), null, 0, null,
                     ConnectivityManager.TYPE_WIFI, NetworkCallback.FLAG_NONE,
-                    mContext.getPackageName(), getAttributionTag());
+                    mContext.getPackageName(), getAttributionTag(), ~0 /* declaredMethodsFlag */);
         });
 
         final NetworkRequest.Builder builder =
@@ -13655,7 +13655,8 @@
                     IllegalArgumentException.class,
                     () -> mService.requestNetwork(Process.INVALID_UID, nc, reqTypeInt, null, 0,
                             null, ConnectivityManager.TYPE_NONE, NetworkCallback.FLAG_NONE,
-                            mContext.getPackageName(), getAttributionTag())
+                            mContext.getPackageName(), getAttributionTag(),
+                            ~0 /* declaredMethodsFlag */)
             );
         }
     }
diff --git a/tests/unit/java/com/android/server/connectivityservice/CSDeclaredMethodsForCallbacksTest.kt b/tests/unit/java/com/android/server/connectivityservice/CSDeclaredMethodsForCallbacksTest.kt
new file mode 100644
index 0000000..cf990b1
--- /dev/null
+++ b/tests/unit/java/com/android/server/connectivityservice/CSDeclaredMethodsForCallbacksTest.kt
@@ -0,0 +1,141 @@
+/*
+ * 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.connectivityservice
+
+import android.net.ConnectivityManager
+import android.net.ConnectivityManager.CALLBACK_CAP_CHANGED
+import android.net.ConnectivityManager.CALLBACK_IP_CHANGED
+import android.net.ConnectivityManager.CALLBACK_LOST
+import android.net.ConnectivityManager.NetworkCallback.DECLARED_METHODS_ALL
+import android.net.LinkAddress
+import android.net.NetworkCapabilities.NET_CAPABILITY_TEMPORARILY_NOT_METERED
+import android.net.NetworkRequest
+import android.os.Build
+import com.android.net.module.util.BitUtils.packBits
+import com.android.server.CSTest
+import com.android.server.ConnectivityService
+import com.android.server.defaultLp
+import com.android.server.defaultNc
+import com.android.testutils.DevSdkIgnoreRule
+import com.android.testutils.DevSdkIgnoreRunner
+import com.android.testutils.RecorderCallback.CallbackEntry
+import com.android.testutils.TestableNetworkCallback
+import com.android.testutils.tryTest
+import java.util.concurrent.atomic.AtomicInteger
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.Mockito.any
+import org.mockito.Mockito.anyInt
+import org.mockito.Mockito.doAnswer
+import org.mockito.Mockito.spy
+
+@DevSdkIgnoreRule.IgnoreUpTo(Build.VERSION_CODES.R)
+@DevSdkIgnoreRunner.MonitorThreadLeak
+@RunWith(DevSdkIgnoreRunner::class)
+class CSDeclaredMethodsForCallbacksTest : CSTest() {
+    private val mockedCallbackFlags = AtomicInteger(DECLARED_METHODS_ALL)
+    private lateinit var wrappedService: ConnectivityService
+
+    private val instrumentedCm by lazy { ConnectivityManager(context, wrappedService) }
+
+    @Before
+    fun setUpWrappedService() {
+        // Mock the callback flags set by ConnectivityManager when calling ConnectivityService, to
+        // simulate methods not being overridden
+        wrappedService = spy(service)
+        doAnswer { inv ->
+            service.requestNetwork(
+                inv.getArgument(0),
+                inv.getArgument(1),
+                inv.getArgument(2),
+                inv.getArgument(3),
+                inv.getArgument(4),
+                inv.getArgument(5),
+                inv.getArgument(6),
+                inv.getArgument(7),
+                inv.getArgument(8),
+                inv.getArgument(9),
+                mockedCallbackFlags.get())
+        }.`when`(wrappedService).requestNetwork(
+            anyInt(),
+            any(),
+            anyInt(),
+            any(),
+            anyInt(),
+            any(),
+            anyInt(),
+            anyInt(),
+            any(),
+            any(),
+            anyInt()
+        )
+        doAnswer { inv ->
+            service.listenForNetwork(
+                inv.getArgument(0),
+                inv.getArgument(1),
+                inv.getArgument(2),
+                inv.getArgument(3),
+                inv.getArgument(4),
+                inv.getArgument(5),
+                mockedCallbackFlags.get()
+            )
+        }.`when`(wrappedService)
+            .listenForNetwork(any(), any(), any(), anyInt(), any(), any(), anyInt())
+    }
+
+    @Test
+    fun testCallbacksAreFiltered() {
+        val requestCb = TestableNetworkCallback()
+        val listenCb = TestableNetworkCallback()
+        mockedCallbackFlags.withFlags(CALLBACK_IP_CHANGED, CALLBACK_LOST) {
+            instrumentedCm.requestNetwork(NetworkRequest.Builder().build(), requestCb)
+        }
+        mockedCallbackFlags.withFlags(CALLBACK_CAP_CHANGED) {
+            instrumentedCm.registerNetworkCallback(NetworkRequest.Builder().build(), listenCb)
+        }
+
+        with(Agent()) {
+            connect()
+            sendLinkProperties(defaultLp().apply {
+                addLinkAddress(LinkAddress("fe80:db8::123/64"))
+            })
+            sendNetworkCapabilities(defaultNc().apply {
+                addCapability(NET_CAPABILITY_TEMPORARILY_NOT_METERED)
+            })
+            disconnect()
+        }
+        waitForIdle()
+
+        // Only callbacks for the corresponding flags are called
+        requestCb.expect<CallbackEntry.LinkPropertiesChanged>()
+        requestCb.expect<CallbackEntry.Lost>()
+        requestCb.assertNoCallback(timeoutMs = 0L)
+
+        listenCb.expect<CallbackEntry.CapabilitiesChanged>()
+        listenCb.assertNoCallback(timeoutMs = 0L)
+    }
+}
+
+private fun AtomicInteger.withFlags(vararg flags: Int, action: () -> Unit) {
+    tryTest {
+        set(packBits(flags).toInt())
+        action()
+    } cleanup {
+        set(DECLARED_METHODS_ALL)
+    }
+}
diff --git a/thread/framework/java/android/net/thread/OperationalDatasetTimestamp.java b/thread/framework/java/android/net/thread/OperationalDatasetTimestamp.java
index 520acbd..cecb4e9 100644
--- a/thread/framework/java/android/net/thread/OperationalDatasetTimestamp.java
+++ b/thread/framework/java/android/net/thread/OperationalDatasetTimestamp.java
@@ -65,11 +65,32 @@
      */
     @NonNull
     public static OperationalDatasetTimestamp fromInstant(@NonNull Instant instant) {
+        return OperationalDatasetTimestamp.fromInstant(instant, true /* isAuthoritativeSource */);
+    }
+
+    /**
+     * Creates a new {@link OperationalDatasetTimestamp} object from an {@link Instant}.
+     *
+     * <p>The {@code seconds} is set to {@code instant.getEpochSecond()}, {@code ticks} is set to
+     * {@link instant#getNano()} based on frequency of 32768 Hz, and {@code isAuthoritativeSource}
+     * is set to {@code isAuthoritativeSource}.
+     *
+     * <p>Note that this conversion can lose precision and a value returned by {@link #toInstant}
+     * may not equal exactly the {@code instant}.
+     *
+     * @throws IllegalArgumentException if {@code instant.getEpochSecond()} is larger than {@code
+     *     0xffffffffffffL}
+     * @see toInstant
+     * @hide
+     */
+    @NonNull
+    public static OperationalDatasetTimestamp fromInstant(
+            @NonNull Instant instant, boolean isAuthoritativeSource) {
         int ticks = getRoundedTicks(instant.getNano());
         long seconds = instant.getEpochSecond() + ticks / TICKS_UPPER_BOUND;
         // the rounded ticks can be 0x8000 if instant.getNano() >= 999984742
         ticks = ticks % TICKS_UPPER_BOUND;
-        return new OperationalDatasetTimestamp(seconds, ticks, true /* isAuthoritativeSource */);
+        return new OperationalDatasetTimestamp(seconds, ticks, isAuthoritativeSource);
     }
 
     /**
diff --git a/thread/service/java/com/android/server/thread/ThreadNetworkControllerService.java b/thread/service/java/com/android/server/thread/ThreadNetworkControllerService.java
index 1d823e0..2f60d9a 100644
--- a/thread/service/java/com/android/server/thread/ThreadNetworkControllerService.java
+++ b/thread/service/java/com/android/server/thread/ThreadNetworkControllerService.java
@@ -955,9 +955,7 @@
         final byte[] securityFlags = new byte[] {(byte) 0xff, (byte) 0xf8};
 
         return new ActiveOperationalDataset.Builder()
-                .setActiveTimestamp(
-                        new OperationalDatasetTimestamp(
-                                now.getEpochSecond() & 0xffffffffffffL, 0, authoritative))
+                .setActiveTimestamp(OperationalDatasetTimestamp.fromInstant(now, authoritative))
                 .setExtendedPanId(newRandomBytes(random, LENGTH_EXTENDED_PAN_ID))
                 .setPanId(panId)
                 .setNetworkName(networkName)
diff --git a/thread/tests/unit/src/android/net/thread/OperationalDatasetTimestampTest.java b/thread/tests/unit/src/android/net/thread/OperationalDatasetTimestampTest.java
index 2244a89..11c78e3 100644
--- a/thread/tests/unit/src/android/net/thread/OperationalDatasetTimestampTest.java
+++ b/thread/tests/unit/src/android/net/thread/OperationalDatasetTimestampTest.java
@@ -41,6 +41,19 @@
     }
 
     @Test
+    public void fromInstant_authoritativeIsSetAsSpecified() {
+        Instant instant = Instant.now();
+
+        OperationalDatasetTimestamp timestampAuthoritativeFalse =
+                OperationalDatasetTimestamp.fromInstant(instant, false);
+        OperationalDatasetTimestamp timestampAuthoritativeTrue =
+                OperationalDatasetTimestamp.fromInstant(instant, true);
+
+        assertThat(timestampAuthoritativeFalse.isAuthoritativeSource()).isEqualTo(false);
+        assertThat(timestampAuthoritativeTrue.isAuthoritativeSource()).isEqualTo(true);
+    }
+
+    @Test
     public void fromTlvValue_goodValue_success() {
         OperationalDatasetTimestamp timestamp =
                 OperationalDatasetTimestamp.fromTlvValue(base16().decode("FFEEDDCCBBAA9989"));
diff --git a/thread/tests/unit/src/com/android/server/thread/ThreadNetworkControllerServiceTest.java b/thread/tests/unit/src/com/android/server/thread/ThreadNetworkControllerServiceTest.java
index de6d1e1..6e2369f 100644
--- a/thread/tests/unit/src/com/android/server/thread/ThreadNetworkControllerServiceTest.java
+++ b/thread/tests/unit/src/com/android/server/thread/ThreadNetworkControllerServiceTest.java
@@ -99,6 +99,8 @@
 import java.nio.charset.StandardCharsets;
 import java.time.Clock;
 import java.time.DateTimeException;
+import java.time.Instant;
+import java.time.ZoneId;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.atomic.AtomicReference;
@@ -584,6 +586,55 @@
     }
 
     @Test
+    public void createRandomizedDataset_zeroNanoseconds_returnsZeroTicks() throws Exception {
+        Instant now = Instant.ofEpochSecond(0, 0);
+        Clock clock = Clock.fixed(now, ZoneId.systemDefault());
+        MockitoSession session =
+                ExtendedMockito.mockitoSession().mockStatic(SystemClock.class).startMocking();
+        final IActiveOperationalDatasetReceiver mockReceiver =
+                ExtendedMockito.mock(IActiveOperationalDatasetReceiver.class);
+
+        try {
+            ExtendedMockito.when(SystemClock.currentNetworkTimeClock()).thenReturn(clock);
+            mService.createRandomizedDataset(DEFAULT_NETWORK_NAME, mockReceiver);
+            mTestLooper.dispatchAll();
+        } finally {
+            session.finishMocking();
+        }
+
+        verify(mockReceiver, never()).onError(anyInt(), anyString());
+        verify(mockReceiver, times(1)).onSuccess(mActiveDatasetCaptor.capture());
+        ActiveOperationalDataset activeDataset = mActiveDatasetCaptor.getValue();
+        assertThat(activeDataset.getActiveTimestamp().getTicks()).isEqualTo(0);
+    }
+
+    @Test
+    public void createRandomizedDataset_maxNanoseconds_returnsMaxTicks() throws Exception {
+        // The nanoseconds to ticks conversion is rounded in the current implementation.
+        // 32767.5 / 32768 * 1000000000 = 999984741.2109375, using 999984741 to
+        // produce the maximum ticks.
+        Instant now = Instant.ofEpochSecond(0, 999984741);
+        Clock clock = Clock.fixed(now, ZoneId.systemDefault());
+        MockitoSession session =
+                ExtendedMockito.mockitoSession().mockStatic(SystemClock.class).startMocking();
+        final IActiveOperationalDatasetReceiver mockReceiver =
+                ExtendedMockito.mock(IActiveOperationalDatasetReceiver.class);
+
+        try {
+            ExtendedMockito.when(SystemClock.currentNetworkTimeClock()).thenReturn(clock);
+            mService.createRandomizedDataset(DEFAULT_NETWORK_NAME, mockReceiver);
+            mTestLooper.dispatchAll();
+        } finally {
+            session.finishMocking();
+        }
+
+        verify(mockReceiver, never()).onError(anyInt(), anyString());
+        verify(mockReceiver, times(1)).onSuccess(mActiveDatasetCaptor.capture());
+        ActiveOperationalDataset activeDataset = mActiveDatasetCaptor.getValue();
+        assertThat(activeDataset.getActiveTimestamp().getTicks()).isEqualTo(32767);
+    }
+
+    @Test
     public void createRandomizedDataset_hasNetworkTimeClock_datasetActiveTimestampIsAuthoritative()
             throws Exception {
         MockitoSession session =