diff --git a/Tethering/apex/Android.bp b/Tethering/apex/Android.bp
index bb40935..76c5d5c 100644
--- a/Tethering/apex/Android.bp
+++ b/Tethering/apex/Android.bp
@@ -105,12 +105,6 @@
     certificate: "com.android.tethering",
 }
 
-filegroup {
-    name: "connectivity-hiddenapi-files",
-    srcs: ["hiddenapi/*.txt"],
-    visibility: ["//packages/modules/Connectivity:__subpackages__"],
-}
-
 // Encapsulate the contributions made by the com.android.tethering to the bootclasspath.
 bootclasspath_fragment {
     name: "com.android.tethering-bootclasspath-fragment",
diff --git a/Tethering/tests/privileged/src/com/android/networkstack/tethering/BpfMapTest.java b/Tethering/tests/privileged/src/com/android/networkstack/tethering/BpfMapTest.java
index 75c2ad1..68c1c57 100644
--- a/Tethering/tests/privileged/src/com/android/networkstack/tethering/BpfMapTest.java
+++ b/Tethering/tests/privileged/src/com/android/networkstack/tethering/BpfMapTest.java
@@ -352,15 +352,6 @@
         assertFalse(mTestMap.isEmpty());
         mTestMap.clear();
         assertTrue(mTestMap.isEmpty());
-
-        // Clearing an already-closed map throws.
-        mTestMap.close();
-        try {
-            mTestMap.clear();
-            fail("clearing already-closed map should throw");
-        } catch (IllegalStateException expected) {
-            // ParcelFileDescriptor.getFd throws IllegalStateException: Already closed.
-        }
     }
 
     @Test
diff --git a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
index 80666e6..773cae3 100644
--- a/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
+++ b/Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
@@ -195,12 +195,14 @@
 import com.android.networkstack.apishim.common.UnsupportedApiLevelException;
 import com.android.networkstack.tethering.TestConnectivityManager.TestNetworkAgent;
 import com.android.networkstack.tethering.metrics.TetheringMetrics;
+import com.android.testutils.DevSdkIgnoreRule;
 import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;
 import com.android.testutils.MiscAsserts;
 
 import org.junit.After;
 import org.junit.Before;
 import org.junit.BeforeClass;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
@@ -223,6 +225,8 @@
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class TetheringTest {
+    @Rule public final DevSdkIgnoreRule mIgnoreRule = new DevSdkIgnoreRule();
+
     private static final int IFINDEX_OFFSET = 100;
 
     private static final String TEST_MOBILE_IFNAME = "test_rmnet_data0";
diff --git a/bpf_progs/dscp_policy.h b/bpf_progs/dscp_policy.h
index 777c4ff..1637f7a 100644
--- a/bpf_progs/dscp_policy.h
+++ b/bpf_progs/dscp_policy.h
@@ -26,12 +26,11 @@
 
 #define STRUCT_SIZE(name, size) _Static_assert(sizeof(name) == (size), "Incorrect struct size.")
 
-#ifndef v6_equal
-#define v6_equal(a, b)    (a.s6_addr32[0] == b.s6_addr32[0] && \
-                 a.s6_addr32[1] == b.s6_addr32[1] && \
-                 a.s6_addr32[2] == b.s6_addr32[2] && \
-                 a.s6_addr32[3] == b.s6_addr32[3])
-#endif
+#define v6_equal(a, b) \
+    (((a.s6_addr32[0] ^ b.s6_addr32[0]) | \
+      (a.s6_addr32[1] ^ b.s6_addr32[1]) | \
+      (a.s6_addr32[2] ^ b.s6_addr32[2]) | \
+      (a.s6_addr32[3] ^ b.s6_addr32[3])) == 0)
 
 // TODO: these are already defined in packages/modules/Connectivity/bpf_progs/bpf_net_helpers.h.
 // smove to common location in future.
diff --git a/framework-t/Android.bp b/framework-t/Android.bp
index 8c32ded..1e508a0 100644
--- a/framework-t/Android.bp
+++ b/framework-t/Android.bp
@@ -103,7 +103,7 @@
     // Do not add static_libs to this library: put them in framework-connectivity instead.
     // The jarjar rules are only so that references to jarjared utils in
     // framework-connectivity-pre-jarjar match at runtime.
-    jarjar_rules: ":framework-connectivity-jarjar-rules",
+    jarjar_rules: ":connectivity-jarjar-rules",
     permitted_packages: [
         "android.app.usage",
         "android.net",
diff --git a/framework/Android.bp b/framework/Android.bp
index c8b64c7..d7de439 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -111,7 +111,6 @@
         // because the tethering stubs depend on the connectivity stubs (e.g.,
         // TetheringRequest depends on LinkAddress).
         "framework-tethering.stubs.module_lib",
-        "framework-wifi.stubs.module_lib",
     ],
     visibility: ["//packages/modules/Connectivity:__subpackages__"]
 }
@@ -120,7 +119,7 @@
     name: "framework-connectivity",
     defaults: ["framework-connectivity-defaults"],
     installable: true,
-    jarjar_rules: ":framework-connectivity-jarjar-rules",
+    jarjar_rules: ":connectivity-jarjar-rules",
     permitted_packages: ["android.net"],
     impl_library_visibility: [
         "//packages/modules/Connectivity/Tethering/apex",
@@ -223,35 +222,3 @@
     ],
     output_extension: "srcjar",
 }
-
-java_genrule {
-    name: "framework-connectivity-jarjar-rules",
-    tool_files: [
-        ":connectivity-hiddenapi-files",
-        ":framework-connectivity-pre-jarjar",
-        ":framework-connectivity-t-pre-jarjar",
-        ":framework-connectivity.stubs.module_lib",
-        ":framework-connectivity-t.stubs.module_lib",
-        "jarjar-excludes.txt",
-    ],
-    tools: [
-        "jarjar-rules-generator",
-        "dexdump",
-    ],
-    out: ["framework_connectivity_jarjar_rules.txt"],
-    cmd: "$(location jarjar-rules-generator) " +
-        "--jars $(location :framework-connectivity-pre-jarjar) " +
-        "$(location :framework-connectivity-t-pre-jarjar) " +
-        "--prefix android.net.connectivity " +
-        "--apistubs $(location :framework-connectivity.stubs.module_lib) " +
-        "$(location :framework-connectivity-t.stubs.module_lib) " +
-        "--unsupportedapi $(locations :connectivity-hiddenapi-files) " +
-        "--excludes $(location jarjar-excludes.txt) " +
-        "--dexdump $(location dexdump) " +
-        "--output $(out)",
-    visibility: [
-        "//packages/modules/Connectivity/framework:__subpackages__",
-        "//packages/modules/Connectivity/framework-t:__subpackages__",
-        "//packages/modules/Connectivity/service",
-    ],
-}
diff --git a/framework/jarjar-excludes.txt b/framework/jarjar-excludes.txt
deleted file mode 100644
index 1311765..0000000
--- a/framework/jarjar-excludes.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-# INetworkStatsProvider / INetworkStatsProviderCallback are referenced from net-tests-utils, which
-# may be used by tests that do not apply connectivity jarjar rules.
-# TODO: move files to a known internal package (like android.net.connectivity.visiblefortesting)
-# so that they do not need jarjar
-android\.net\.netstats\.provider\.INetworkStatsProvider(\$.+)?
-android\.net\.netstats\.provider\.INetworkStatsProviderCallback(\$.+)?
-
-# INetworkAgent / INetworkAgentRegistry are used in NetworkAgentTest
-# TODO: move files to android.net.connectivity.visiblefortesting
-android\.net\.INetworkAgent(\$.+)?
-android\.net\.INetworkAgentRegistry(\$.+)?
-
-# IConnectivityDiagnosticsCallback used in ConnectivityDiagnosticsManagerTest
-# TODO: move files to android.net.connectivity.visiblefortesting
-android\.net\.IConnectivityDiagnosticsCallback(\$.+)?
-
-
-# KeepaliveUtils is used by ConnectivityManager CTS
-# TODO: move into service-connectivity so framework-connectivity stops using
-# ServiceConnectivityResources (callers need high permissions to find/query the resource apk anyway)
-# and have a ConnectivityManager test API instead
-android\.net\.util\.KeepaliveUtils(\$.+)?
-
-# TODO (b/217115866): add jarjar rules for Nearby
-android\.nearby\..+
diff --git a/framework/jni/android_net_NetworkUtils.cpp b/framework/jni/android_net_NetworkUtils.cpp
index 857ece5..7478b3e 100644
--- a/framework/jni/android_net_NetworkUtils.cpp
+++ b/framework/jni/android_net_NetworkUtils.cpp
@@ -232,8 +232,7 @@
         return NULL;
     }
 
-    jclass class_TcpRepairWindow = env->FindClass(
-        "android/net/connectivity/android/net/TcpRepairWindow");
+    jclass class_TcpRepairWindow = env->FindClass("android/net/TcpRepairWindow");
     jmethodID ctor = env->GetMethodID(class_TcpRepairWindow, "<init>", "(IIIIII)V");
 
     return env->NewObject(class_TcpRepairWindow, ctor, trw.snd_wl1, trw.snd_wnd, trw.max_window,
@@ -254,7 +253,7 @@
     { "bindSocketToNetworkHandle", "(Ljava/io/FileDescriptor;J)I", (void*) android_net_utils_bindSocketToNetworkHandle },
     { "attachDropAllBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_attachDropAllBPFFilter },
     { "detachBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_detachBPFFilter },
-    { "getTcpRepairWindow", "(Ljava/io/FileDescriptor;)Landroid/net/connectivity/android/net/TcpRepairWindow;", (void*) android_net_utils_getTcpRepairWindow },
+    { "getTcpRepairWindow", "(Ljava/io/FileDescriptor;)Landroid/net/TcpRepairWindow;", (void*) android_net_utils_getTcpRepairWindow },
     { "resNetworkSend", "(J[BII)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkSend },
     { "resNetworkQuery", "(JLjava/lang/String;III)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkQuery },
     { "resNetworkResult", "(Ljava/io/FileDescriptor;)Landroid/net/DnsResolver$DnsResponse;", (void*) android_net_utils_resNetworkResult },
diff --git a/framework/src/android/net/DnsResolverServiceManager.java b/framework/src/android/net/DnsResolverServiceManager.java
index e64d2ae..79009e8 100644
--- a/framework/src/android/net/DnsResolverServiceManager.java
+++ b/framework/src/android/net/DnsResolverServiceManager.java
@@ -29,7 +29,7 @@
 
     private final IBinder mResolver;
 
-    public DnsResolverServiceManager(IBinder resolver) {
+    DnsResolverServiceManager(IBinder resolver) {
         mResolver = resolver;
     }
 
diff --git a/framework/src/android/net/NattSocketKeepalive.java b/framework/src/android/net/NattSocketKeepalive.java
index 56cc923..a15d165 100644
--- a/framework/src/android/net/NattSocketKeepalive.java
+++ b/framework/src/android/net/NattSocketKeepalive.java
@@ -33,7 +33,7 @@
     @NonNull private final InetAddress mDestination;
     private final int mResourceId;
 
-    public NattSocketKeepalive(@NonNull IConnectivityManager service,
+    NattSocketKeepalive(@NonNull IConnectivityManager service,
             @NonNull Network network,
             @NonNull ParcelFileDescriptor pfd,
             int resourceId,
@@ -48,7 +48,7 @@
     }
 
     @Override
-    protected void startImpl(int intervalSec) {
+    void startImpl(int intervalSec) {
         mExecutor.execute(() -> {
             try {
                 mService.startNattKeepaliveWithFd(mNetwork, mPfd, mResourceId,
@@ -62,7 +62,7 @@
     }
 
     @Override
-    protected void stopImpl() {
+    void stopImpl() {
         mExecutor.execute(() -> {
             try {
                 if (mSlot != null) {
diff --git a/framework/src/android/net/NetworkRequest.java b/framework/src/android/net/NetworkRequest.java
index 4f9d845..6245e07 100644
--- a/framework/src/android/net/NetworkRequest.java
+++ b/framework/src/android/net/NetworkRequest.java
@@ -220,7 +220,7 @@
          */
         public Builder(@NonNull final NetworkRequest request) {
             Objects.requireNonNull(request);
-            mNetworkCapabilities = request.networkCapabilities;
+            mNetworkCapabilities = new NetworkCapabilities(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.
diff --git a/framework/src/android/net/QosCallbackConnection.java b/framework/src/android/net/QosCallbackConnection.java
index cfceddd..de0fc24 100644
--- a/framework/src/android/net/QosCallbackConnection.java
+++ b/framework/src/android/net/QosCallbackConnection.java
@@ -35,7 +35,7 @@
  *
  * @hide
  */
-public class QosCallbackConnection extends android.net.IQosCallback.Stub {
+class QosCallbackConnection extends android.net.IQosCallback.Stub {
 
     @NonNull private final ConnectivityManager mConnectivityManager;
     @Nullable private volatile QosCallback mCallback;
@@ -56,7 +56,7 @@
      *                 {@link Executor} must run callback sequentially, otherwise the order of
      *                 callbacks cannot be guaranteed.
      */
-    public QosCallbackConnection(@NonNull final ConnectivityManager connectivityManager,
+    QosCallbackConnection(@NonNull final ConnectivityManager connectivityManager,
             @NonNull final QosCallback callback,
             @NonNull final Executor executor) {
         mConnectivityManager = Objects.requireNonNull(connectivityManager,
@@ -142,7 +142,7 @@
      * There are no synchronization guarantees on exactly when the callback will stop receiving
      * messages.
      */
-    public void stopReceivingMessages() {
+    void stopReceivingMessages() {
         mCallback = null;
     }
 }
diff --git a/framework/src/android/net/QosCallbackException.java b/framework/src/android/net/QosCallbackException.java
index 9e5d98a..b80cff4 100644
--- a/framework/src/android/net/QosCallbackException.java
+++ b/framework/src/android/net/QosCallbackException.java
@@ -85,7 +85,7 @@
      * {@hide}
      */
     @NonNull
-    public static QosCallbackException createException(@ExceptionType final int type) {
+    static QosCallbackException createException(@ExceptionType final int type) {
         switch (type) {
             case EX_TYPE_FILTER_NETWORK_RELEASED:
                 return new QosCallbackException(new NetworkReleasedException());
diff --git a/framework/src/android/net/QosFilter.java b/framework/src/android/net/QosFilter.java
index 01dc4bb..b432644 100644
--- a/framework/src/android/net/QosFilter.java
+++ b/framework/src/android/net/QosFilter.java
@@ -33,15 +33,13 @@
 @SystemApi
 public abstract class QosFilter {
 
-    /** @hide */
-    protected QosFilter() {
-        // Ensure that all derived types are known, and known to be properly handled when being
-        // passed to and from NetworkAgent.
-        // For now the only known derived type is QosSocketFilter.
-        if (!(this instanceof QosSocketFilter)) {
-            throw new UnsupportedOperationException(
-                    "Unsupported QosFilter type: " + this.getClass().getName());
-        }
+    /**
+     * The constructor is kept hidden from outside this package to ensure that all derived types
+     * are known and properly handled when being passed to and from {@link NetworkAgent}.
+     *
+     * @hide
+     */
+    QosFilter() {
     }
 
     /**
diff --git a/framework/src/android/net/QosSocketInfo.java b/framework/src/android/net/QosSocketInfo.java
index da9b356..49ac22b 100644
--- a/framework/src/android/net/QosSocketInfo.java
+++ b/framework/src/android/net/QosSocketInfo.java
@@ -73,10 +73,9 @@
      * The parcel file descriptor wrapped around the socket's file descriptor.
      *
      * @return the parcel file descriptor of the socket
-     * @hide
      */
     @NonNull
-    public ParcelFileDescriptor getParcelFileDescriptor() {
+    ParcelFileDescriptor getParcelFileDescriptor() {
         return mParcelFileDescriptor;
     }
 
diff --git a/framework/src/android/net/SocketKeepalive.java b/framework/src/android/net/SocketKeepalive.java
index 57cf5e3..f6cae72 100644
--- a/framework/src/android/net/SocketKeepalive.java
+++ b/framework/src/android/net/SocketKeepalive.java
@@ -52,8 +52,7 @@
  * request. If it does, it MUST support at least 3 concurrent keepalive slots.
  */
 public abstract class SocketKeepalive implements AutoCloseable {
-    /** @hide */
-    protected static final String TAG = "SocketKeepalive";
+    static final String TAG = "SocketKeepalive";
 
     /**
      * Success. It indicates there is no error.
@@ -216,22 +215,15 @@
         }
     }
 
-    /** @hide */
-    @NonNull protected final IConnectivityManager mService;
-    /** @hide */
-    @NonNull protected final Network mNetwork;
-    /** @hide */
-    @NonNull protected final ParcelFileDescriptor mPfd;
-    /** @hide */
-    @NonNull protected final Executor mExecutor;
-    /** @hide */
-    @NonNull protected final ISocketKeepaliveCallback mCallback;
+    @NonNull final IConnectivityManager mService;
+    @NonNull final Network mNetwork;
+    @NonNull final ParcelFileDescriptor mPfd;
+    @NonNull final Executor mExecutor;
+    @NonNull final ISocketKeepaliveCallback mCallback;
     // TODO: remove slot since mCallback could be used to identify which keepalive to stop.
-    /** @hide */
-    @Nullable protected Integer mSlot;
+    @Nullable Integer mSlot;
 
-    /** @hide */
-    public SocketKeepalive(@NonNull IConnectivityManager service, @NonNull Network network,
+    SocketKeepalive(@NonNull IConnectivityManager service, @NonNull Network network,
             @NonNull ParcelFileDescriptor pfd,
             @NonNull Executor executor, @NonNull Callback callback) {
         mService = service;
@@ -311,8 +303,7 @@
         startImpl(intervalSec);
     }
 
-    /** @hide */
-    protected abstract void startImpl(int intervalSec);
+    abstract void startImpl(int intervalSec);
 
     /**
      * Requests that keepalive be stopped. The application must wait for {@link Callback#onStopped}
@@ -322,8 +313,7 @@
         stopImpl();
     }
 
-    /** @hide */
-    protected abstract void stopImpl();
+    abstract void stopImpl();
 
     /**
      * Deactivate this {@link SocketKeepalive} and free allocated resources. The instance won't be
diff --git a/framework/src/android/net/TcpSocketKeepalive.java b/framework/src/android/net/TcpSocketKeepalive.java
index 7131784..d89814d 100644
--- a/framework/src/android/net/TcpSocketKeepalive.java
+++ b/framework/src/android/net/TcpSocketKeepalive.java
@@ -24,9 +24,9 @@
 import java.util.concurrent.Executor;
 
 /** @hide */
-public final class TcpSocketKeepalive extends SocketKeepalive {
+final class TcpSocketKeepalive extends SocketKeepalive {
 
-    public TcpSocketKeepalive(@NonNull IConnectivityManager service,
+    TcpSocketKeepalive(@NonNull IConnectivityManager service,
             @NonNull Network network,
             @NonNull ParcelFileDescriptor pfd,
             @NonNull Executor executor,
@@ -50,7 +50,7 @@
      *   acknowledgement.
      */
     @Override
-    protected void startImpl(int intervalSec) {
+    void startImpl(int intervalSec) {
         mExecutor.execute(() -> {
             try {
                 mService.startTcpKeepalive(mNetwork, mPfd, intervalSec, mCallback);
@@ -62,7 +62,7 @@
     }
 
     @Override
-    protected void stopImpl() {
+    void stopImpl() {
         mExecutor.execute(() -> {
             try {
                 if (mSlot != null) {
diff --git a/service-t/src/com/android/server/ethernet/EthernetConfigStore.java b/service-t/src/com/android/server/ethernet/EthernetConfigStore.java
index 6b623f4..6006539 100644
--- a/service-t/src/com/android/server/ethernet/EthernetConfigStore.java
+++ b/service-t/src/com/android/server/ethernet/EthernetConfigStore.java
@@ -16,23 +16,37 @@
 
 package com.android.server.ethernet;
 
+import static com.android.net.module.util.DeviceConfigUtils.TETHERING_MODULE_NAME;
+
 import android.annotation.Nullable;
+import android.content.ApexEnvironment;
 import android.net.IpConfiguration;
 import android.os.Environment;
 import android.util.ArrayMap;
+import android.util.AtomicFile;
+import android.util.Log;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.net.IpConfigStore;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 
 /**
  * This class provides an API to store and manage Ethernet network configuration.
  */
 public class EthernetConfigStore {
-    private static final String ipConfigFile = Environment.getDataDirectory() +
-            "/misc/ethernet/ipconfig.txt";
+    private static final String TAG = EthernetConfigStore.class.getSimpleName();
+    private static final String CONFIG_FILE = "ipconfig.txt";
+    private static final String FILE_PATH = "/misc/ethernet/";
+    private static final String LEGACY_IP_CONFIG_FILE_PATH = Environment.getDataDirectory()
+            + FILE_PATH;
+    private static final String APEX_IP_CONFIG_FILE_PATH = ApexEnvironment.getApexEnvironment(
+            TETHERING_MODULE_NAME).getDeviceProtectedDataDir() + FILE_PATH;
 
     private IpConfigStore mStore = new IpConfigStore();
-    private ArrayMap<String, IpConfiguration> mIpConfigurations;
+    private final ArrayMap<String, IpConfiguration> mIpConfigurations;
     private IpConfiguration mIpConfigurationForDefaultInterface;
     private final Object mSync = new Object();
 
@@ -40,22 +54,70 @@
         mIpConfigurations = new ArrayMap<>(0);
     }
 
-    public void read() {
-        synchronized (mSync) {
-            ArrayMap<String, IpConfiguration> configs =
-                    IpConfigStore.readIpConfigurations(ipConfigFile);
+    private static boolean doesConfigFileExist(final String filepath) {
+        return new File(filepath).exists();
+    }
 
-            // This configuration may exist in old file versions when there was only a single active
-            // Ethernet interface.
-            if (configs.containsKey("0")) {
-                mIpConfigurationForDefaultInterface = configs.remove("0");
+    private void writeLegacyIpConfigToApexPath(final String newFilePath, final String oldFilePath,
+            final String filename) {
+        final File directory = new File(newFilePath);
+        if (!directory.exists()) {
+            directory.mkdirs();
+        }
+
+        // Write the legacy IP config to the apex file path.
+        FileOutputStream fos = null;
+        final AtomicFile dst = new AtomicFile(new File(newFilePath + filename));
+        final AtomicFile src = new AtomicFile(new File(oldFilePath + filename));
+        try {
+            final byte[] raw = src.readFully();
+            if (raw.length > 0) {
+                fos = dst.startWrite();
+                fos.write(raw);
+                fos.flush();
+                dst.finishWrite(fos);
             }
-
-            mIpConfigurations = configs;
+        } catch (IOException e) {
+            Log.e(TAG, "Fail to sync the legacy IP config to the apex file path.");
+            dst.failWrite(fos);
         }
     }
 
+    public void read() {
+        read(APEX_IP_CONFIG_FILE_PATH, LEGACY_IP_CONFIG_FILE_PATH, CONFIG_FILE);
+    }
+
+    @VisibleForTesting
+    void read(final String newFilePath, final String oldFilePath, final String filename) {
+        synchronized (mSync) {
+            // Attempt to read the IP configuration from apex file path first.
+            if (doesConfigFileExist(newFilePath + filename)) {
+                loadConfigFileLocked(newFilePath + filename);
+                return;
+            }
+
+            // If the config file doesn't exist in the apex file path, attempt to read it from
+            // the legacy file path, if config file exists, write the legacy IP configuration to
+            // apex config file path, this should just happen on the first boot. New or updated
+            // config entries are only written to the apex config file later.
+            if (!doesConfigFileExist(oldFilePath + filename)) return;
+            loadConfigFileLocked(oldFilePath + filename);
+            writeLegacyIpConfigToApexPath(newFilePath, oldFilePath, filename);
+        }
+    }
+
+    private void loadConfigFileLocked(final String filepath) {
+        final ArrayMap<String, IpConfiguration> configs =
+                IpConfigStore.readIpConfigurations(filepath);
+        mIpConfigurations.putAll(configs);
+    }
+
     public void write(String iface, IpConfiguration config) {
+        write(iface, config, APEX_IP_CONFIG_FILE_PATH + CONFIG_FILE);
+    }
+
+    @VisibleForTesting
+    void write(String iface, IpConfiguration config, String filepath) {
         boolean modified;
 
         synchronized (mSync) {
@@ -67,7 +129,7 @@
             }
 
             if (modified) {
-                mStore.writeIpConfigurations(ipConfigFile, mIpConfigurations);
+                mStore.writeIpConfigurations(filepath, mIpConfigurations);
             }
         }
     }
@@ -80,9 +142,6 @@
 
     @Nullable
     public IpConfiguration getIpConfigurationForDefaultInterface() {
-        synchronized (mSync) {
-            return mIpConfigurationForDefaultInterface == null
-                    ? null : new IpConfiguration(mIpConfigurationForDefaultInterface);
-        }
+        return null;
     }
 }
diff --git a/service-t/src/com/android/server/ethernet/EthernetTracker.java b/service-t/src/com/android/server/ethernet/EthernetTracker.java
index e9053dd..e5f1ea5 100644
--- a/service-t/src/com/android/server/ethernet/EthernetTracker.java
+++ b/service-t/src/com/android/server/ethernet/EthernetTracker.java
@@ -586,14 +586,18 @@
         }
     }
 
-    private class InterfaceObserver extends BaseNetdUnsolicitedEventListener {
+    @VisibleForTesting
+    class InterfaceObserver extends BaseNetdUnsolicitedEventListener {
 
         @Override
         public void onInterfaceLinkStateChanged(String iface, boolean up) {
             if (DBG) {
                 Log.i(TAG, "interfaceLinkStateChanged, iface: " + iface + ", up: " + up);
             }
-            mHandler.post(() -> updateInterfaceState(iface, up));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                updateInterfaceState(iface, up);
+            });
         }
 
         @Override
@@ -601,7 +605,10 @@
             if (DBG) {
                 Log.i(TAG, "onInterfaceAdded, iface: " + iface);
             }
-            mHandler.post(() -> maybeTrackInterface(iface));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                maybeTrackInterface(iface);
+            });
         }
 
         @Override
@@ -609,7 +616,10 @@
             if (DBG) {
                 Log.i(TAG, "onInterfaceRemoved, iface: " + iface);
             }
-            mHandler.post(() -> stopTrackingInterface(iface));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                stopTrackingInterface(iface);
+            });
         }
     }
 
@@ -888,6 +898,8 @@
     void dump(FileDescriptor fd, IndentingPrintWriter pw, String[] args) {
         postAndWaitForRunnable(() -> {
             pw.println(getClass().getSimpleName());
+            pw.println("Ethernet State: "
+                    + (mEthernetState == ETHERNET_STATE_ENABLED ? "enabled" : "disabled"));
             pw.println("Ethernet interface name filter: " + mIfaceMatch);
             pw.println("Default interface: " + mDefaultInterface);
             pw.println("Default interface mode: " + mDefaultInterfaceMode);
diff --git a/service/Android.bp b/service/Android.bp
index 0393c79..91b9d1c 100644
--- a/service/Android.bp
+++ b/service/Android.bp
@@ -224,15 +224,9 @@
     lint: { strict_updatability_linting: true },
 }
 
-genrule {
+filegroup {
     name: "connectivity-jarjar-rules",
-    defaults: ["jarjar-rules-combine-defaults"],
-    srcs: [
-        ":framework-connectivity-jarjar-rules",
-        ":service-connectivity-jarjar-gen",
-        ":service-nearby-jarjar-gen",
-    ],
-    out: ["connectivity-jarjar-rules.txt"],
+    srcs: ["jarjar-rules.txt"],
     visibility: ["//packages/modules/Connectivity:__subpackages__"],
 }
 
@@ -243,45 +237,3 @@
     srcs: ["src/com/android/server/BpfNetMaps.java"],
     visibility: ["//packages/modules/Connectivity:__subpackages__"],
 }
-
-java_genrule {
-    name: "service-connectivity-jarjar-gen",
-    tool_files: [
-        ":service-connectivity-pre-jarjar",
-        ":service-connectivity-tiramisu-pre-jarjar",
-        "jarjar-excludes.txt",
-    ],
-    tools: [
-        "jarjar-rules-generator",
-        "dexdump",
-    ],
-    out: ["service_connectivity_jarjar_rules.txt"],
-    cmd: "$(location jarjar-rules-generator) " +
-        "--jars $(location :service-connectivity-pre-jarjar) " +
-        "$(location :service-connectivity-tiramisu-pre-jarjar) " +
-        "--prefix android.net.connectivity " +
-        "--excludes $(location jarjar-excludes.txt) " +
-        "--dexdump $(location dexdump) " +
-        "--output $(out)",
-    visibility: ["//visibility:private"],
-}
-
-java_genrule {
-    name: "service-nearby-jarjar-gen",
-    tool_files: [
-        ":service-nearby-pre-jarjar",
-        "jarjar-excludes.txt",
-    ],
-    tools: [
-        "jarjar-rules-generator",
-        "dexdump",
-    ],
-    out: ["service_nearby_jarjar_rules.txt"],
-    cmd: "$(location jarjar-rules-generator) " +
-        "--jars $(location :service-nearby-pre-jarjar) " +
-        "--prefix com.android.server.nearby " +
-        "--excludes $(location jarjar-excludes.txt) " +
-        "--dexdump $(location dexdump) " +
-        "--output $(out)",
-    visibility: ["//visibility:private"],
-}
diff --git a/service/jarjar-excludes.txt b/service/jarjar-excludes.txt
deleted file mode 100644
index b0d6763..0000000
--- a/service/jarjar-excludes.txt
+++ /dev/null
@@ -1,9 +0,0 @@
-# Classes loaded by SystemServer via their hardcoded name, so they can't be jarjared
-com\.android\.server\.ConnectivityServiceInitializer(\$.+)?
-com\.android\.server\.NetworkStatsServiceInitializer(\$.+)?
-
-# Do not jarjar com.android.server, as several unit tests fail because they lose
-# package-private visibility between jarjared and non-jarjared classes.
-# TODO: fix the tests and also jarjar com.android.server, or at least only exclude a package that
-# is specific to the module like com.android.server.connectivity
-com\.android\.server\..+
diff --git a/service/jarjar-rules.txt b/service/jarjar-rules.txt
new file mode 100644
index 0000000..c7223fc
--- /dev/null
+++ b/service/jarjar-rules.txt
@@ -0,0 +1,123 @@
+# Classes in framework-connectivity are restricted to the android.net package.
+# This cannot be changed because it is harcoded in ART in S.
+# Any missing jarjar rule for framework-connectivity would be caught by the
+# build as an unexpected class outside of the android.net package.
+rule com.android.net.module.util.** android.net.connectivity.@0
+rule com.android.modules.utils.** android.net.connectivity.@0
+rule android.net.NetworkFactory* android.net.connectivity.@0
+
+# From modules-utils-preconditions
+rule com.android.internal.util.Preconditions* android.net.connectivity.@0
+
+# From framework-connectivity-shared-srcs
+rule android.util.LocalLog* android.net.connectivity.@0
+rule android.util.IndentingPrintWriter* android.net.connectivity.@0
+rule com.android.internal.util.IndentingPrintWriter* android.net.connectivity.@0
+rule com.android.internal.util.MessageUtils* android.net.connectivity.@0
+rule com.android.internal.util.WakeupMessage* android.net.connectivity.@0
+rule com.android.internal.util.FileRotator* android.net.connectivity.@0
+rule com.android.internal.util.ProcFileReader* android.net.connectivity.@0
+
+# From framework-connectivity-protos
+rule com.google.protobuf.** android.net.connectivity.@0
+rule android.service.** android.net.connectivity.@0
+
+rule android.sysprop.** com.android.connectivity.@0
+
+rule com.android.internal.messages.** com.android.connectivity.@0
+
+# From dnsresolver_aidl_interface (newer AIDLs should go to android.net.resolv.aidl)
+rule android.net.resolv.aidl.** com.android.connectivity.@0
+rule android.net.IDnsResolver* com.android.connectivity.@0
+rule android.net.ResolverHostsParcel* com.android.connectivity.@0
+rule android.net.ResolverOptionsParcel* com.android.connectivity.@0
+rule android.net.ResolverParamsParcel* com.android.connectivity.@0
+rule android.net.ResolverParamsParcel* com.android.connectivity.@0
+# Also includes netd event listener AIDL, but this is handled by netd-client rules
+
+# From netd-client (newer AIDLs should go to android.net.netd.aidl)
+rule android.net.netd.aidl.** com.android.connectivity.@0
+# Avoid including android.net.INetdEventCallback, used in tests but not part of the module
+rule android.net.INetd com.android.connectivity.@0
+rule android.net.INetd$* com.android.connectivity.@0
+rule android.net.INetdUnsolicitedEventListener* com.android.connectivity.@0
+rule android.net.InterfaceConfigurationParcel* com.android.connectivity.@0
+rule android.net.MarkMaskParcel* com.android.connectivity.@0
+rule android.net.NativeNetworkConfig* com.android.connectivity.@0
+rule android.net.NativeNetworkType* com.android.connectivity.@0
+rule android.net.NativeVpnType* com.android.connectivity.@0
+rule android.net.RouteInfoParcel* com.android.connectivity.@0
+rule android.net.TetherConfigParcel* com.android.connectivity.@0
+rule android.net.TetherOffloadRuleParcel* com.android.connectivity.@0
+rule android.net.TetherStatsParcel* com.android.connectivity.@0
+rule android.net.UidRangeParcel* com.android.connectivity.@0
+rule android.net.metrics.INetdEventListener* com.android.connectivity.@0
+
+# From netlink-client
+rule android.net.netlink.** com.android.connectivity.@0
+
+# From networkstack-client (newer AIDLs should go to android.net.[networkstack|ipmemorystore].aidl)
+rule android.net.networkstack.aidl.** com.android.connectivity.@0
+rule android.net.ipmemorystore.aidl.** com.android.connectivity.@0
+rule android.net.ipmemorystore.aidl.** com.android.connectivity.@0
+rule android.net.DataStallReportParcelable* com.android.connectivity.@0
+rule android.net.DhcpResultsParcelable* com.android.connectivity.@0
+rule android.net.IIpMemoryStore* com.android.connectivity.@0
+rule android.net.INetworkMonitor* com.android.connectivity.@0
+rule android.net.INetworkStackConnector* com.android.connectivity.@0
+rule android.net.INetworkStackStatusCallback* com.android.connectivity.@0
+rule android.net.InformationElementParcelable* com.android.connectivity.@0
+rule android.net.InitialConfigurationParcelable* com.android.connectivity.@0
+rule android.net.IpMemoryStore* com.android.connectivity.@0
+rule android.net.Layer2InformationParcelable* com.android.connectivity.@0
+rule android.net.Layer2PacketParcelable* com.android.connectivity.@0
+rule android.net.NattKeepalivePacketDataParcelable* com.android.connectivity.@0
+rule android.net.NetworkMonitorManager* com.android.connectivity.@0
+rule android.net.NetworkTestResultParcelable* com.android.connectivity.@0
+rule android.net.PrivateDnsConfigParcel* com.android.connectivity.@0
+rule android.net.ProvisioningConfigurationParcelable* com.android.connectivity.@0
+rule android.net.ScanResultInfoParcelable* com.android.connectivity.@0
+rule android.net.TcpKeepalivePacketDataParcelable* com.android.connectivity.@0
+rule android.net.dhcp.DhcpLeaseParcelable* com.android.connectivity.@0
+rule android.net.dhcp.DhcpServingParamsParcel* com.android.connectivity.@0
+rule android.net.dhcp.IDhcpEventCallbacks* com.android.connectivity.@0
+rule android.net.dhcp.IDhcpServer* com.android.connectivity.@0
+rule android.net.ip.IIpClient* com.android.connectivity.@0
+rule android.net.ip.IpClientCallbacks* com.android.connectivity.@0
+rule android.net.ip.IpClientManager* com.android.connectivity.@0
+rule android.net.ip.IpClientUtil* com.android.connectivity.@0
+rule android.net.ipmemorystore.** com.android.connectivity.@0
+rule android.net.networkstack.** com.android.connectivity.@0
+rule android.net.shared.** com.android.connectivity.@0
+rule android.net.util.KeepalivePacketDataUtil* com.android.connectivity.@0
+
+# From connectivity-module-utils
+rule android.net.util.SharedLog* com.android.connectivity.@0
+rule android.net.shared.** com.android.connectivity.@0
+
+# From services-connectivity-shared-srcs
+rule android.net.util.NetworkConstants* com.android.connectivity.@0
+
+# From modules-utils-statemachine
+rule com.android.internal.util.IState* com.android.connectivity.@0
+rule com.android.internal.util.State* com.android.connectivity.@0
+
+# From the API shims
+rule com.android.networkstack.apishim.** com.android.connectivity.@0
+
+# From filegroup framework-connectivity-protos
+rule android.service.*Proto com.android.connectivity.@0
+
+# From mdns-aidl-interface
+rule android.net.mdns.aidl.** android.net.connectivity.@0
+
+# From nearby-service, including proto
+rule service.proto.** com.android.server.nearby.@0
+rule androidx.annotation.Keep* com.android.server.nearby.@0
+rule androidx.collection.** com.android.server.nearby.@0
+rule androidx.core.** com.android.server.nearby.@0
+rule androidx.versionedparcelable.** com.android.server.nearby.@0
+rule com.google.common.** com.android.server.nearby.@0
+
+# Remaining are connectivity sources in com.android.server and com.android.server.connectivity:
+# TODO: move to a subpackage of com.android.connectivity (such as com.android.connectivity.server)
diff --git a/service/proguard.flags b/service/proguard.flags
index 557ba59..94397ab 100644
--- a/service/proguard.flags
+++ b/service/proguard.flags
@@ -2,6 +2,8 @@
 # TODO: instead of keeping everything, consider listing only "entry points"
 # (service loader, JNI registered methods, etc) and letting the optimizer do its job
 -keep class android.net.** { *; }
+-keep class com.android.connectivity.** { *; }
+-keep class com.android.net.** { *; }
 -keep class !com.android.server.nearby.**,com.android.server.** { *; }
 
 # Prevent proguard from stripping out any nearby-service and fast-pair-lite-protos fields.
@@ -13,4 +15,4 @@
 # This replicates the base proguard rule used by the build by default
 # (proguard_basic_keeps.flags), but needs to be specified here because the
 # com.google.protobuf package is jarjared to the below package.
--keepclassmembers class * extends com.android.server.nearby.com.google.protobuf.MessageLite { <fields>; }
+-keepclassmembers class * extends com.android.connectivity.com.google.protobuf.MessageLite { <fields>; }
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index 691cb4d..f760d3b 100644
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -3428,6 +3428,10 @@
         for (NetworkAgentInfo nai : networksSortedById()) {
             pw.println(nai.toString());
             pw.increaseIndent();
+            pw.println("Nat464Xlat:");
+            pw.increaseIndent();
+            nai.dumpNat464Xlat(pw);
+            pw.decreaseIndent();
             pw.println(String.format(
                     "Requests: REQUEST:%d LISTEN:%d BACKGROUND_REQUEST:%d total:%d",
                     nai.numForegroundNetworkRequests(),
@@ -3443,10 +3447,6 @@
             pw.increaseIndent();
             nai.dumpInactivityTimers(pw);
             pw.decreaseIndent();
-            pw.println("Nat464Xlat:");
-            pw.increaseIndent();
-            nai.dumpNat464Xlat(pw);
-            pw.decreaseIndent();
             pw.decreaseIndent();
         }
     }
diff --git a/service/src/com/android/server/connectivity/Nat464Xlat.java b/service/src/com/android/server/connectivity/Nat464Xlat.java
index e8fc06d..738caab 100644
--- a/service/src/com/android/server/connectivity/Nat464Xlat.java
+++ b/service/src/com/android/server/connectivity/Nat464Xlat.java
@@ -540,7 +540,7 @@
                 mClatCoordinator.dump(pw);
                 pw.decreaseIndent();
             } else {
-                pw.println("<not start>");
+                pw.println("<not started>");
             }
         }
     }
diff --git a/service/src/com/android/server/connectivity/NetworkAgentInfo.java b/service/src/com/android/server/connectivity/NetworkAgentInfo.java
index 466e7b1..b40b6e0 100644
--- a/service/src/com/android/server/connectivity/NetworkAgentInfo.java
+++ b/service/src/com/android/server/connectivity/NetworkAgentInfo.java
@@ -1256,7 +1256,7 @@
         if (nc.hasTransport(TRANSPORT_TEST)) return true;
 
         // Factories that make ethernet networks can allow UIDs for automotive devices.
-        if (nc.hasTransport(TRANSPORT_ETHERNET) && hasAutomotiveFeature) {
+        if (nc.hasSingleTransport(TRANSPORT_ETHERNET) && hasAutomotiveFeature) {
             return true;
         }
 
diff --git a/tests/common/Android.bp b/tests/common/Android.bp
index efea0f9..509e881 100644
--- a/tests/common/Android.bp
+++ b/tests/common/Android.bp
@@ -23,7 +23,7 @@
 
 java_library {
     name: "FrameworksNetCommonTests",
-    defaults: ["framework-connectivity-internal-test-defaults"],
+    defaults: ["framework-connectivity-test-defaults"],
     srcs: [
         "java/**/*.java",
         "java/**/*.kt",
@@ -49,7 +49,6 @@
 // jarjar stops at the first matching rule, so order of concatenation affects the output.
 genrule {
     name: "ConnectivityCoverageJarJarRules",
-    defaults: ["jarjar-rules-combine-defaults"],
     srcs: [
         "tethering-jni-jarjar-rules.txt",
         ":connectivity-jarjar-rules",
@@ -57,6 +56,8 @@
         ":NetworkStackJarJarRules",
     ],
     out: ["jarjar-rules-connectivity-coverage.txt"],
+    // Concat files with a line break in the middle
+    cmd: "for src in $(in); do cat $${src}; echo; done > $(out)",
     visibility: ["//visibility:private"],
 }
 
@@ -83,7 +84,7 @@
     target_sdk_version: "31",
     test_suites: ["general-tests", "mts-tethering"],
     defaults: [
-        "framework-connectivity-internal-test-defaults",
+        "framework-connectivity-test-defaults",
         "FrameworksNetTests-jni-defaults",
         "libnetworkstackutilsjni_deps",
     ],
@@ -139,30 +140,6 @@
     ],
 }
 
-// defaults for tests that need to build against framework-connectivity's @hide APIs, but also
-// using fully @hide classes that are jarjared (because they have no API member). Similar to
-// framework-connectivity-test-defaults above but uses pre-jarjar class names.
-// Only usable from targets that have visibility on framework-connectivity-pre-jarjar, and apply
-// connectivity jarjar rules so that references to jarjared classes still match: this is limited to
-// connectivity internal tests only.
-java_defaults {
-    name: "framework-connectivity-internal-test-defaults",
-    sdk_version: "core_platform", // tests can use @CorePlatformApi's
-    libs: [
-        // order matters: classes in framework-connectivity are resolved before framework,
-        // meaning @hide APIs in framework-connectivity are resolved before @SystemApi
-        // stubs in framework
-        "framework-connectivity-pre-jarjar",
-        "framework-connectivity-t-pre-jarjar",
-        "framework-tethering.impl",
-        "framework",
-
-        // if sdk_version="" this gets automatically included, but here we need to add manually.
-        "framework-res",
-    ],
-    defaults_visibility: ["//packages/modules/Connectivity/tests:__subpackages__"],
-}
-
 // Defaults for tests that want to run in mainline-presubmit.
 // Not widely used because many of our tests have AndroidTest.xml files and
 // use the mainline-param config-descriptor metadata in AndroidTest.xml.
diff --git a/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt b/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
index b12c4db..792aa83 100644
--- a/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
+++ b/tests/cts/net/src/android/net/cts/EthernetManagerTest.kt
@@ -53,10 +53,9 @@
 import org.junit.Test
 import org.junit.runner.RunWith
 import java.net.Inet6Address
-import java.net.NetworkInterface
-import java.util.concurrent.Executor
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
+import kotlin.test.assertNotNull
 import kotlin.test.assertNull
 import kotlin.test.assertTrue
 import kotlin.test.fail
@@ -76,6 +75,7 @@
     private val context by lazy { InstrumentationRegistry.getInstrumentation().context }
     private val em by lazy { EthernetManagerShimImpl.newInstance(context) }
 
+    private val ifaceListener = EthernetStateListener()
     private val createdIfaces = ArrayList<EthernetTestInterface>()
     private val addedListeners = ArrayList<EthernetStateListener>()
 
@@ -93,7 +93,7 @@
                 val tnm = context.getSystemService(TestNetworkManager::class.java)
                 tnm.createTapInterface(false /* bringUp */)
             }
-            val mtu = NetworkInterface.getByName(tapInterface.interfaceName).getMTU()
+            val mtu = 1500
             packetReader = TapPacketReader(handler, tapInterface.fileDescriptor.fileDescriptor, mtu)
             raResponder = RouterAdvertisementResponder(packetReader)
             raResponder.addRouterEntry(MacAddress.fromString("01:23:45:67:89:ab"),
@@ -154,6 +154,12 @@
             return events.poll(TIMEOUT_MS) ?: fail("Did not receive callback after ${TIMEOUT_MS}ms")
         }
 
+        fun eventuallyExpect(expected: CallbackEntry) = events.poll(TIMEOUT_MS) { it == expected }
+
+        fun eventuallyExpect(iface: EthernetTestInterface, state: Int, role: Int) {
+            assertNotNull(eventuallyExpect(createChangeEvent(iface, state, role)))
+        }
+
         fun assertNoCallback() {
             val cb = events.poll(NO_CALLBACK_TIMEOUT_MS)
             assertNull(cb, "Expected no callback but got $cb")
@@ -163,6 +169,7 @@
     @Before
     fun setUp() {
         setIncludeTestInterfaces(true)
+        addInterfaceStateListener(ifaceListener)
     }
 
     @After
@@ -176,18 +183,20 @@
         }
     }
 
-    private fun addInterfaceStateListener(executor: Executor, listener: EthernetStateListener) {
+    private fun addInterfaceStateListener(listener: EthernetStateListener) {
         runAsShell(CONNECTIVITY_USE_RESTRICTED_NETWORKS) {
-            em.addInterfaceStateListener(executor, listener)
+            em.addInterfaceStateListener(HandlerExecutor(Handler(Looper.getMainLooper())), listener)
         }
         addedListeners.add(listener)
     }
 
     private fun createInterface(): EthernetTestInterface {
-        return EthernetTestInterface(
+        val iface = EthernetTestInterface(
             context,
             Handler(Looper.getMainLooper())
         ).also { createdIfaces.add(it) }
+        ifaceListener.eventuallyExpect(iface, STATE_LINK_UP, ROLE_CLIENT)
+        return iface
     }
 
     private fun setIncludeTestInterfaces(value: Boolean) {
@@ -203,12 +212,10 @@
 
     @Test
     fun testCallbacks() {
-        val executor = HandlerExecutor(Handler(Looper.getMainLooper()))
-
         // If an interface exists when the callback is registered, it is reported on registration.
         val iface = createInterface()
         val listener1 = EthernetStateListener()
-        addInterfaceStateListener(executor, listener1)
+        addInterfaceStateListener(listener1)
         validateListenerOnRegistration(listener1)
 
         // If an interface appears, existing callbacks see it.
@@ -221,18 +228,18 @@
 
         // Register a new listener, it should see state of all existing interfaces immediately.
         val listener2 = EthernetStateListener()
-        addInterfaceStateListener(executor, listener2)
+        addInterfaceStateListener(listener2)
         validateListenerOnRegistration(listener2)
 
         // Removing interfaces first sends link down, then STATE_ABSENT/ROLE_NONE.
         removeInterface(iface)
-        for (listener in addedListeners) {
+        for (listener in listOf(listener1, listener2)) {
             listener.expectCallback(iface, STATE_LINK_DOWN, ROLE_CLIENT)
             listener.expectCallback(iface, STATE_ABSENT, ROLE_NONE)
         }
 
         removeInterface(iface2)
-        for (listener in addedListeners) {
+        for (listener in listOf(listener1, listener2)) {
             listener.expectCallback(iface2, STATE_LINK_DOWN, ROLE_CLIENT)
             listener.expectCallback(iface2, STATE_ABSENT, ROLE_NONE)
             listener.assertNoCallback()
diff --git a/tests/integration/Android.bp b/tests/integration/Android.bp
index e3d80a0..97c1265 100644
--- a/tests/integration/Android.bp
+++ b/tests/integration/Android.bp
@@ -21,7 +21,7 @@
 
 android_test {
     name: "FrameworksNetIntegrationTests",
-    defaults: ["framework-connectivity-internal-test-defaults"],
+    defaults: ["framework-connectivity-test-defaults"],
     platform_apis: true,
     certificate: "platform",
     srcs: [
@@ -71,12 +71,8 @@
         "net-tests-utils",
     ],
     libs: [
-        "service-connectivity-pre-jarjar",
+        "service-connectivity",
         "services.core",
         "services.net",
     ],
-    visibility: [
-        "//packages/modules/Connectivity/tests/integration",
-        "//packages/modules/Connectivity/tests/unit",
-    ],
 }
diff --git a/tests/mts/bpf_existence_test.cpp b/tests/mts/bpf_existence_test.cpp
index 7efc2b1..db39e6f 100644
--- a/tests/mts/bpf_existence_test.cpp
+++ b/tests/mts/bpf_existence_test.cpp
@@ -107,14 +107,10 @@
     NETD "map_netd_uid_counterset_map",
     NETD "map_netd_uid_owner_map",
     NETD "map_netd_uid_permission_map",
-    SHARED "prog_block_bind4_block_port",
-    SHARED "prog_block_bind6_block_port",
     SHARED "prog_clatd_schedcls_egress4_clat_ether",
     SHARED "prog_clatd_schedcls_egress4_clat_rawip",
     SHARED "prog_clatd_schedcls_ingress6_clat_ether",
     SHARED "prog_clatd_schedcls_ingress6_clat_rawip",
-    SHARED "prog_dscp_policy_schedcls_set_dscp_ether",
-    SHARED "prog_dscp_policy_schedcls_set_dscp_raw_ip",
     NETD "prog_netd_cgroupskb_egress_stats",
     NETD "prog_netd_cgroupskb_ingress_stats",
     NETD "prog_netd_cgroupsock_inet_create",
@@ -125,6 +121,13 @@
     NETD "prog_netd_skfilter_ingress_xtbpf",
 };
 
+static const set<string> INTRODUCED_T_5_4 = {
+    SHARED "prog_block_bind4_block_port",
+    SHARED "prog_block_bind6_block_port",
+    SHARED "prog_dscp_policy_schedcls_set_dscp_ether",
+    SHARED "prog_dscp_policy_schedcls_set_dscp_raw_ip",
+};
+
 static const set<string> REMOVED_T = {
 };
 
@@ -164,6 +167,7 @@
 
     if (IsAtLeastT()) {
         addAll(expected, INTRODUCED_T);
+        if (android::bpf::isAtLeastKernelVersion(5, 4, 0)) addAll(expected, INTRODUCED_T_5_4);
         removeAll(expected, REMOVED_T);
 
         addAll(unexpected, REMOVED_T);
diff --git a/tests/unit/Android.bp b/tests/unit/Android.bp
index 5a7208c..5b926de 100644
--- a/tests/unit/Android.bp
+++ b/tests/unit/Android.bp
@@ -108,7 +108,7 @@
     name: "FrameworksNetTestsDefaults",
     min_sdk_version: "30",
     defaults: [
-        "framework-connectivity-internal-test-defaults",
+        "framework-connectivity-test-defaults",
     ],
     srcs: [
         "java/**/*.java",
diff --git a/tests/unit/java/com/android/server/ConnectivityServiceTest.java b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
index 6294bff..f6ccd8a 100644
--- a/tests/unit/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/unit/java/com/android/server/ConnectivityServiceTest.java
@@ -15536,7 +15536,7 @@
 
         mEthernetNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_ETHERNET,
                 new LinkProperties(), agentNetCaps.build());
-        validateAllowedUids(mEthernetNetworkAgent, TRANSPORT_ETHERNET, agentNetCaps);
+        validateAllowedUids(mEthernetNetworkAgent, TRANSPORT_ETHERNET, agentNetCaps, true);
     }
 
     @Test
@@ -15560,12 +15560,12 @@
 
         mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR,
                 new LinkProperties(), agentNetCaps.build());
-        validateAllowedUids(mCellNetworkAgent, TRANSPORT_CELLULAR, agentNetCaps);
+        validateAllowedUids(mCellNetworkAgent, TRANSPORT_CELLULAR, agentNetCaps, false);
     }
 
     private void validateAllowedUids(final TestNetworkAgentWrapper testAgent,
             @NetworkCapabilities.Transport final int transportUnderTest,
-            final NetworkCapabilities.Builder ncb) throws Exception {
+            final NetworkCapabilities.Builder ncb, final boolean forAutomotive) throws Exception {
         final ArraySet<Integer> serviceUidSet = new ArraySet<>();
         serviceUidSet.add(TEST_PACKAGE_UID);
         final ArraySet<Integer> nonServiceUidSet = new ArraySet<>();
@@ -15595,7 +15595,7 @@
         }
 
         /* Test setting UIDs is rejected when expected */
-        if (TRANSPORT_ETHERNET == transportUnderTest) {
+        if (forAutomotive) {
             mockHasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE, false);
         }
 
diff --git a/tests/unit/java/com/android/server/ethernet/EthernetConfigStoreTest.java b/tests/unit/java/com/android/server/ethernet/EthernetConfigStoreTest.java
new file mode 100644
index 0000000..a9f80ea
--- /dev/null
+++ b/tests/unit/java/com/android/server/ethernet/EthernetConfigStoreTest.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2022 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.ethernet;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import android.content.Context;
+import android.net.InetAddresses;
+import android.net.IpConfiguration;
+import android.net.IpConfiguration.IpAssignment;
+import android.net.IpConfiguration.ProxySettings;
+import android.net.LinkAddress;
+import android.net.ProxyInfo;
+import android.net.StaticIpConfiguration;
+import android.util.ArrayMap;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.List;
+
+@RunWith(AndroidJUnit4.class)
+public class EthernetConfigStoreTest {
+    private static final LinkAddress LINKADDR = new LinkAddress("192.168.1.100/25");
+    private static final InetAddress GATEWAY = InetAddresses.parseNumericAddress("192.168.1.1");
+    private static final InetAddress DNS1 = InetAddresses.parseNumericAddress("8.8.8.8");
+    private static final InetAddress DNS2 = InetAddresses.parseNumericAddress("8.8.4.4");
+    private static final StaticIpConfiguration STATIC_IP_CONFIG =
+            new StaticIpConfiguration.Builder()
+                    .setIpAddress(LINKADDR)
+                    .setGateway(GATEWAY)
+                    .setDnsServers(new ArrayList<InetAddress>(
+                            List.of(DNS1, DNS2)))
+                    .build();
+    private static final ProxyInfo PROXY_INFO = ProxyInfo.buildDirectProxy("test", 8888);
+    private static final IpConfiguration APEX_IP_CONFIG =
+            new IpConfiguration(IpAssignment.DHCP, ProxySettings.NONE, null, null);
+    private static final IpConfiguration LEGACY_IP_CONFIG =
+            new IpConfiguration(IpAssignment.STATIC, ProxySettings.STATIC, STATIC_IP_CONFIG,
+                    PROXY_INFO);
+
+    private EthernetConfigStore mEthernetConfigStore;
+    private File mApexTestDir;
+    private File mLegacyTestDir;
+    private File mApexConfigFile;
+    private File mLegacyConfigFile;
+
+    private void createTestDir() {
+        final Context context = InstrumentationRegistry.getContext();
+        final File baseDir = context.getFilesDir();
+        mApexTestDir = new File(baseDir.getPath() + "/apex");
+        mApexTestDir.mkdirs();
+
+        mLegacyTestDir = new File(baseDir.getPath() + "/legacy");
+        mLegacyTestDir.mkdirs();
+    }
+
+    @Before
+    public void setUp() {
+        createTestDir();
+        mEthernetConfigStore = new EthernetConfigStore();
+    }
+
+    @After
+    public void tearDown() {
+        mApexTestDir.delete();
+        mLegacyTestDir.delete();
+    }
+
+    private void assertConfigFileExist(final String filepath) {
+        assertTrue(new File(filepath).exists());
+    }
+
+    /** Wait for the delayed write operation completes. */
+    private void waitForMs(long ms) {
+        try {
+            Thread.sleep(ms);
+        } catch (final InterruptedException e) {
+            fail("Thread was interrupted");
+        }
+    }
+
+    @Test
+    public void testWriteIpConfigToApexFilePathAndRead() throws Exception {
+        // Write the config file to the apex file path, pretend the config file exits and
+        // check if IP config should be read from apex file path.
+        mApexConfigFile = new File(mApexTestDir.getPath(), "test.txt");
+        mEthernetConfigStore.write("eth0", APEX_IP_CONFIG, mApexConfigFile.getPath());
+        waitForMs(50);
+
+        mEthernetConfigStore.read(mApexTestDir.getPath(), mLegacyTestDir.getPath(), "/test.txt");
+        final ArrayMap<String, IpConfiguration> ipConfigurations =
+                mEthernetConfigStore.getIpConfigurations();
+        assertEquals(APEX_IP_CONFIG, ipConfigurations.get("eth0"));
+
+        mApexConfigFile.delete();
+    }
+
+    @Test
+    public void testWriteIpConfigToLegacyFilePathAndRead() throws Exception {
+        // Write the config file to the legacy file path, pretend the config file exits and
+        // check if IP config should be read from legacy file path.
+        mLegacyConfigFile = new File(mLegacyTestDir, "test.txt");
+        mEthernetConfigStore.write("0", LEGACY_IP_CONFIG, mLegacyConfigFile.getPath());
+        waitForMs(50);
+
+        mEthernetConfigStore.read(mApexTestDir.getPath(), mLegacyTestDir.getPath(), "/test.txt");
+        final ArrayMap<String, IpConfiguration> ipConfigurations =
+                mEthernetConfigStore.getIpConfigurations();
+        assertEquals(LEGACY_IP_CONFIG, ipConfigurations.get("0"));
+
+        // Check the same config file in apex file path is created.
+        assertConfigFileExist(mApexTestDir.getPath() + "/test.txt");
+
+        final File apexConfigFile = new File(mApexTestDir.getPath() + "/test.txt");
+        apexConfigFile.delete();
+        mLegacyConfigFile.delete();
+    }
+}
diff --git a/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java b/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
index b1831c4..33b36fd 100644
--- a/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
+++ b/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
@@ -29,22 +29,23 @@
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
-import android.content.res.Resources;
 import android.net.EthernetManager;
-import android.net.InetAddresses;
-import android.net.INetworkInterfaceOutcomeReceiver;
 import android.net.IEthernetServiceListener;
 import android.net.INetd;
+import android.net.INetworkInterfaceOutcomeReceiver;
+import android.net.InetAddresses;
+import android.net.InterfaceConfigurationParcel;
 import android.net.IpConfiguration;
 import android.net.IpConfiguration.IpAssignment;
 import android.net.IpConfiguration.ProxySettings;
-import android.net.InterfaceConfigurationParcel;
 import android.net.LinkAddress;
 import android.net.NetworkCapabilities;
 import android.net.StaticIpConfiguration;
@@ -54,13 +55,13 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
-import com.android.connectivity.resources.R;
 import com.android.testutils.HandlerUtils;
 
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -410,18 +411,24 @@
                 IpConfiguration configuration) { }
     }
 
+    private InterfaceConfigurationParcel createMockedIfaceParcel(final String ifname,
+            final String hwAddr) {
+        final InterfaceConfigurationParcel ifaceParcel = new InterfaceConfigurationParcel();
+        ifaceParcel.ifName = ifname;
+        ifaceParcel.hwAddr = hwAddr;
+        ifaceParcel.flags = new String[] {INetd.IF_STATE_UP};
+        return ifaceParcel;
+    }
+
     @Test
     public void testListenEthernetStateChange() throws Exception {
-        final String testIface = "testtap123";
-        final String testHwAddr = "11:22:33:44:55:66";
-        final InterfaceConfigurationParcel ifaceParcel = new InterfaceConfigurationParcel();
-        ifaceParcel.ifName = testIface;
-        ifaceParcel.hwAddr = testHwAddr;
-        ifaceParcel.flags = new String[] {INetd.IF_STATE_UP};
-
         tracker.setIncludeTestInterfaces(true);
         waitForIdle();
 
+        final String testIface = "testtap123";
+        final String testHwAddr = "11:22:33:44:55:66";
+        final InterfaceConfigurationParcel ifaceParcel = createMockedIfaceParcel(testIface,
+                testHwAddr);
         when(mNetd.interfaceGetList()).thenReturn(new String[] {testIface});
         when(mNetd.interfaceGetCfg(eq(testIface))).thenReturn(ifaceParcel);
         doReturn(new String[] {testIface}).when(mFactory).getAvailableInterfaces(anyBoolean());
@@ -453,4 +460,43 @@
         verify(listener).onInterfaceStateChanged(eq(testIface), eq(EthernetManager.STATE_LINK_UP),
                 anyInt(), any());
     }
+
+    @Test
+    public void testListenEthernetStateChange_unsolicitedEventListener() throws Exception {
+        when(mNetd.interfaceGetList()).thenReturn(new String[] {});
+        doReturn(new String[] {}).when(mFactory).getAvailableInterfaces(anyBoolean());
+
+        tracker.setIncludeTestInterfaces(true);
+        tracker.start();
+
+        final ArgumentCaptor<EthernetTracker.InterfaceObserver> captor =
+                ArgumentCaptor.forClass(EthernetTracker.InterfaceObserver.class);
+        verify(mNetd, timeout(TIMEOUT_MS)).registerUnsolicitedEventListener(captor.capture());
+        final EthernetTracker.InterfaceObserver observer = captor.getValue();
+
+        tracker.setEthernetEnabled(false);
+        waitForIdle();
+        reset(mFactory);
+        reset(mNetd);
+
+        final String testIface = "testtap1";
+        observer.onInterfaceAdded(testIface);
+        verify(mFactory, never()).addInterface(eq(testIface), anyString(), any(), any());
+        observer.onInterfaceRemoved(testIface);
+        verify(mFactory, never()).removeInterface(eq(testIface));
+
+        final String testHwAddr = "11:22:33:44:55:66";
+        final InterfaceConfigurationParcel testIfaceParce =
+                createMockedIfaceParcel(testIface, testHwAddr);
+        when(mNetd.interfaceGetList()).thenReturn(new String[] {testIface});
+        when(mNetd.interfaceGetCfg(eq(testIface))).thenReturn(testIfaceParce);
+        doReturn(new String[] {testIface}).when(mFactory).getAvailableInterfaces(anyBoolean());
+        tracker.setEthernetEnabled(true);
+        waitForIdle();
+        reset(mFactory);
+
+        final String testIface2 = "testtap2";
+        observer.onInterfaceRemoved(testIface2);
+        verify(mFactory, timeout(TIMEOUT_MS)).removeInterface(eq(testIface2));
+    }
 }
diff --git a/tools/Android.bp b/tools/Android.bp
deleted file mode 100644
index 27f9b75..0000000
--- a/tools/Android.bp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// Copyright (C) 2022 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 {
-    // See: http://go/android-license-faq
-    default_applicable_licenses: ["Android-Apache-2.0"],
-}
-
-// Build tool used to generate jarjar rules for all classes in a jar, except those that are
-// API, UnsupportedAppUsage or otherwise excluded.
-python_binary_host {
-    name: "jarjar-rules-generator",
-    srcs: [
-        "gen_jarjar.py",
-    ],
-    main: "gen_jarjar.py",
-    version: {
-        py2: {
-            enabled: false,
-        },
-        py3: {
-            enabled: true,
-        },
-    },
-    visibility: ["//packages/modules/Connectivity:__subpackages__"],
-}
-
-genrule_defaults {
-    name: "jarjar-rules-combine-defaults",
-    // Concat files with a line break in the middle
-    cmd: "for src in $(in); do cat $${src}; echo; done > $(out)",
-    defaults_visibility: ["//packages/modules/Connectivity:__subpackages__"],
-}
diff --git a/tools/gen_jarjar.py b/tools/gen_jarjar.py
deleted file mode 100755
index 285bf6f..0000000
--- a/tools/gen_jarjar.py
+++ /dev/null
@@ -1,168 +0,0 @@
-#
-# Copyright (C) 2022 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.
-
-""" This script generates jarjar rule files to add a jarjar prefix to all classes, except those
-that are API, unsupported API or otherwise excluded."""
-
-import argparse
-import io
-import re
-import subprocess
-from xml import sax
-from xml.sax.handler import ContentHandler
-from zipfile import ZipFile
-
-
-def parse_arguments(argv):
-    parser = argparse.ArgumentParser()
-    parser.add_argument(
-        '--jars', nargs='+',
-        help='Path to pre-jarjar JAR. Can be followed by multiple space-separated paths.')
-    parser.add_argument(
-        '--prefix', required=True,
-        help='Package prefix to use for jarjared classes, '
-             'for example "com.android.connectivity" (does not end with a dot).')
-    parser.add_argument(
-        '--output', required=True, help='Path to output jarjar rules file.')
-    parser.add_argument(
-        '--apistubs', nargs='*', default=[],
-        help='Path to API stubs jar. Classes that are API will not be jarjared. Can be followed by '
-             'multiple space-separated paths.')
-    parser.add_argument(
-        '--unsupportedapi', nargs='*', default=[],
-        help='Path to UnsupportedAppUsage hidden API .txt lists. '
-             'Classes that have UnsupportedAppUsage API will not be jarjared. Can be followed by '
-             'multiple space-separated paths.')
-    parser.add_argument(
-        '--excludes', nargs='*', default=[],
-        help='Path to files listing classes that should not be jarjared. Can be followed by '
-             'multiple space-separated paths. '
-             'Each file should contain one full-match regex per line. Empty lines or lines '
-             'starting with "#" are ignored.')
-    parser.add_argument(
-        '--dexdump', default='dexdump', help='Path to dexdump binary.')
-    return parser.parse_args(argv)
-
-
-class DumpHandler(ContentHandler):
-    def __init__(self):
-        super().__init__()
-        self._current_package = None
-        self.classes = []
-
-    def startElement(self, name, attrs):
-        if name == 'package':
-            attr_name = attrs.getValue('name')
-            assert attr_name != '', '<package> element missing name'
-            assert self._current_package is None, f'Found nested package tags for {attr_name}'
-            self._current_package = attr_name
-        elif name == 'class':
-            attr_name = attrs.getValue('name')
-            assert attr_name != '', '<class> element missing name'
-            self.classes.append(self._current_package + '.' + attr_name)
-
-    def endElement(self, name):
-        if name == 'package':
-            self._current_package = None
-
-
-def _list_toplevel_dex_classes(jar, dexdump):
-    """List all classes in a dexed .jar file that are not inner classes."""
-    # Empty jars do net get a classes.dex: return an empty set for them
-    with ZipFile(jar, 'r') as zip_file:
-        if not zip_file.namelist():
-            return set()
-    cmd = [dexdump, '-l', 'xml', '-e', jar]
-    dump = subprocess.run(cmd, check=True, text=True, stdout=subprocess.PIPE)
-    handler = DumpHandler()
-    xml_parser = sax.make_parser()
-    xml_parser.setContentHandler(handler)
-    xml_parser.parse(io.StringIO(dump.stdout))
-    return set([_get_toplevel_class(c) for c in handler.classes])
-
-
-def _list_jar_classes(jar):
-    with ZipFile(jar, 'r') as zip:
-        files = zip.namelist()
-        assert 'classes.dex' not in files, f'Jar file {jar} is dexed, ' \
-                                           'expected an intermediate zip of .class files'
-        class_len = len('.class')
-        return [f.replace('/', '.')[:-class_len] for f in files
-                if f.endswith('.class') and not f.endswith('/package-info.class')]
-
-
-def _list_hiddenapi_classes(txt_file):
-    out = set()
-    with open(txt_file, 'r') as f:
-        for line in f:
-            if not line.strip():
-                continue
-            assert line.startswith('L') and ';' in line, f'Class name not recognized: {line}'
-            clazz = line.replace('/', '.').split(';')[0][1:]
-            out.add(_get_toplevel_class(clazz))
-    return out
-
-
-def _get_toplevel_class(clazz):
-    """Return the name of the toplevel (not an inner class) enclosing class of the given class."""
-    if '$' not in clazz:
-        return clazz
-    return clazz.split('$')[0]
-
-
-def _get_excludes(path):
-    out = []
-    with open(path, 'r') as f:
-        for line in f:
-            stripped = line.strip()
-            if not stripped or stripped.startswith('#'):
-                continue
-            out.append(re.compile(stripped))
-    return out
-
-
-def make_jarjar_rules(args):
-    excluded_classes = set()
-    for apistubs_file in args.apistubs:
-        excluded_classes.update(_list_toplevel_dex_classes(apistubs_file, args.dexdump))
-
-    for unsupportedapi_file in args.unsupportedapi:
-        excluded_classes.update(_list_hiddenapi_classes(unsupportedapi_file))
-
-    exclude_regexes = []
-    for exclude_file in args.excludes:
-        exclude_regexes.extend(_get_excludes(exclude_file))
-
-    with open(args.output, 'w') as outfile:
-        for jar in args.jars:
-            jar_classes = _list_jar_classes(jar)
-            jar_classes.sort()
-            for clazz in jar_classes:
-                if (_get_toplevel_class(clazz) not in excluded_classes and
-                        not any(r.fullmatch(clazz) for r in exclude_regexes)):
-                    outfile.write(f'rule {clazz} {args.prefix}.@0\n')
-                    # Also include jarjar rules for unit tests of the class, so the package matches
-                    outfile.write(f'rule {clazz}Test {args.prefix}.@0\n')
-                    outfile.write(f'rule {clazz}Test$* {args.prefix}.@0\n')
-
-
-def _main():
-    # Pass in None to use argv
-    args = parse_arguments(None)
-    make_jarjar_rules(args)
-
-
-if __name__ == '__main__':
-    _main()