diff --git a/core/java/android/app/ApplicationExitInfo.java b/core/java/android/app/ApplicationExitInfo.java
index e7b3e14..69d5c8d 100644
--- a/core/java/android/app/ApplicationExitInfo.java
+++ b/core/java/android/app/ApplicationExitInfo.java
@@ -50,7 +50,7 @@
  *
  * <p>
  * Application process could die for many reasons, for example {@link #REASON_LOW_MEMORY}
- * when it was killed by the ystem because it was running low on memory. Reason
+ * when it was killed by the system because it was running low on memory. Reason
  * of the death can be retrieved via {@link #getReason}. Besides the reason, there are a few other
  * auxiliary APIs like {@link #getStatus} and {@link #getImportance} to help the caller with
  * additional diagnostic information.
diff --git a/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java b/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
index 3843b9a..0832152 100644
--- a/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
+++ b/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
@@ -34,9 +34,9 @@
 import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.BitUtils;
 import com.android.internal.util.Preconditions;
+import com.android.net.module.util.CollectionUtils;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -767,7 +767,7 @@
         if (originalOwnerUid == creatorUid) {
             setOwnerUid(creatorUid);
         }
-        if (ArrayUtils.contains(originalAdministratorUids, creatorUid)) {
+        if (CollectionUtils.contains(originalAdministratorUids, creatorUid)) {
             setAdministratorUids(new int[] {creatorUid});
         }
         // There is no need to clear the UIDs, they have already been cleared by clearAll() above.
@@ -1873,7 +1873,7 @@
             sb.append(" OwnerUid: ").append(mOwnerUid);
         }
 
-        if (!ArrayUtils.isEmpty(mAdministratorUids)) {
+        if (mAdministratorUids != null && mAdministratorUids.length != 0) {
             sb.append(" AdminUids: ").append(Arrays.toString(mAdministratorUids));
         }
 
@@ -2506,7 +2506,7 @@
         @NonNull
         public NetworkCapabilities build() {
             if (mCaps.getOwnerUid() != Process.INVALID_UID) {
-                if (!ArrayUtils.contains(mCaps.getAdministratorUids(), mCaps.getOwnerUid())) {
+                if (!CollectionUtils.contains(mCaps.getAdministratorUids(), mCaps.getOwnerUid())) {
                     throw new IllegalStateException("The owner UID must be included in "
                             + " administrator UIDs.");
                 }
diff --git a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
index b282484..1a4f20c7 100644
--- a/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/services/core/java/com/android/server/connectivity/NetworkAgentInfo.java
@@ -57,6 +57,7 @@
 import com.android.server.ConnectivityService;
 
 import java.io.PrintWriter;
+import java.util.Arrays;
 import java.util.List;
 import java.util.NoSuchElementException;
 import java.util.Objects;
@@ -1025,6 +1026,8 @@
                 + (networkAgentConfig.acceptUnvalidated ? " acceptUnvalidated" : "")
                 + (networkAgentConfig.acceptPartialConnectivity ? " acceptPartialConnectivity" : "")
                 + (clatd.isStarted() ? " clat{" + clatd + "} " : "")
+                + (declaredUnderlyingNetworks != null
+                        ? " underlying{" + Arrays.toString(declaredUnderlyingNetworks) + "}" : "")
                 + "  lp{" + linkProperties + "}"
                 + "  nc{" + networkCapabilities + "}"
                 + "}";
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index 8514625..77d46f4 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -2392,6 +2392,16 @@
      */
     String getContactFromEab(String contact);
 
+    /*
+     * Check whether the device supports RCS User Capability Exchange or not.
+     */
+    boolean getDeviceUceEnabled();
+
+    /*
+     * Set the device supports RCS User Capability Exchange.
+     */
+     void setDeviceUceEnabled(boolean isEnabled);
+
     /**
      * Set a SignalStrengthUpdateRequest to receive notification when Signal Strength breach the
      * specified thresholds.
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 4f13dc3..4c658e1 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -1283,32 +1283,10 @@
     }
 
     private void updateUidNetworkingBlocked() {
-        // Changes the return value of the mock NetworkPolicyManager's isUidNetworkingBlocked method
-        // based on the current UID rules and restrict background setting. Note that the test never
-        // pretends to be a foreground app, so always declare no connectivity if background
-        // networking is not allowed.
-        switch (mUidRules) {
-            case RULE_REJECT_ALL:
-                when(mNetworkPolicyManager.isUidNetworkingBlocked(anyInt(), anyBoolean()))
-                        .thenReturn(true);
-                break;
-
-            case RULE_REJECT_METERED:
-                when(mNetworkPolicyManager.isUidNetworkingBlocked(anyInt(), eq(true)))
-                        .thenReturn(true);
-                when(mNetworkPolicyManager.isUidNetworkingBlocked(anyInt(), eq(false)))
-                        .thenReturn(mRestrictBackground);
-                break;
-
-            case RULE_ALLOW_METERED:
-            case RULE_NONE:
-                when(mNetworkPolicyManager.isUidNetworkingBlocked(anyInt(), anyBoolean()))
-                        .thenReturn(mRestrictBackground);
-                break;
-
-            default:
-                fail("Unknown policy rule " + mUidRules);
-        }
+        doAnswer(i -> NetworkPolicyManagerInternal.isUidNetworkingBlocked(
+                i.getArgument(0) /* uid */, mUidRules, i.getArgument(1) /* metered */,
+                mRestrictBackground)
+        ).when(mNetworkPolicyManager).isUidNetworkingBlocked(anyInt(), anyBoolean());
     }
 
     private void setUidRulesChanged(int uidRules) throws RemoteException {
@@ -6917,7 +6895,7 @@
         cellNetworkCallback.expectCapabilitiesWithout(NET_CAPABILITY_NOT_METERED,
                 mCellNetworkAgent);
         cellNetworkCallback.expectBlockedStatusCallback(true, mCellNetworkAgent);
-        assertEquals(null, mCm.getActiveNetwork());
+        assertNull(mCm.getActiveNetwork());
         assertActiveNetworkInfo(TYPE_MOBILE, DetailedState.BLOCKED);
         assertNetworkInfo(TYPE_MOBILE, DetailedState.BLOCKED);
 
@@ -6930,17 +6908,21 @@
         setUidRulesChanged(RULE_NONE);
         cellNetworkCallback.assertNoCallback();
 
-        // Restrict the network based on BackgroundRestricted.
+        // Restrict background data. Networking is not blocked because the network is unmetered.
         setRestrictBackgroundChanged(true);
         cellNetworkCallback.expectBlockedStatusCallback(true, mCellNetworkAgent);
-        assertEquals(null, mCm.getActiveNetwork());
+        assertNull(mCm.getActiveNetwork());
         assertActiveNetworkInfo(TYPE_MOBILE, DetailedState.BLOCKED);
         assertNetworkInfo(TYPE_MOBILE, DetailedState.BLOCKED);
-
         setRestrictBackgroundChanged(true);
         cellNetworkCallback.assertNoCallback();
-        setRestrictBackgroundChanged(false);
+
+        setUidRulesChanged(RULE_ALLOW_METERED);
         cellNetworkCallback.expectBlockedStatusCallback(false, mCellNetworkAgent);
+        assertActiveNetworkInfo(TYPE_MOBILE, DetailedState.CONNECTED);
+        assertNetworkInfo(TYPE_MOBILE, DetailedState.CONNECTED);
+
+        setRestrictBackgroundChanged(false);
         cellNetworkCallback.assertNoCallback();
         assertEquals(mCellNetworkAgent.getNetwork(), mCm.getActiveNetwork());
         assertActiveNetworkInfo(TYPE_MOBILE, DetailedState.CONNECTED);