diff --git a/framework-t/api/system-current.txt b/framework-t/api/system-current.txt
index e110155..0f37b6f 100644
--- a/framework-t/api/system-current.txt
+++ b/framework-t/api/system-current.txt
@@ -13,8 +13,8 @@
 package android.net {
 
   public class EthernetManager {
-    method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.MANAGE_ETHERNET_NETWORKS}) public void connectNetwork(@NonNull String, @Nullable java.util.concurrent.Executor, @Nullable android.os.OutcomeReceiver<java.lang.String,android.net.EthernetNetworkManagementException>);
-    method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.MANAGE_ETHERNET_NETWORKS}) public void disconnectNetwork(@NonNull String, @Nullable java.util.concurrent.Executor, @Nullable android.os.OutcomeReceiver<java.lang.String,android.net.EthernetNetworkManagementException>);
+    method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.MANAGE_ETHERNET_NETWORKS}) public void disableInterface(@NonNull String, @Nullable java.util.concurrent.Executor, @Nullable android.os.OutcomeReceiver<java.lang.String,android.net.EthernetNetworkManagementException>);
+    method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.MANAGE_ETHERNET_NETWORKS}) public void enableInterface(@NonNull String, @Nullable java.util.concurrent.Executor, @Nullable android.os.OutcomeReceiver<java.lang.String,android.net.EthernetNetworkManagementException>);
     method @NonNull @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public android.net.EthernetManager.TetheredInterfaceRequest requestTetheredInterface(@NonNull java.util.concurrent.Executor, @NonNull android.net.EthernetManager.TetheredInterfaceCallback);
     method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_STACK, android.Manifest.permission.MANAGE_ETHERNET_NETWORKS}) public void updateConfiguration(@NonNull String, @NonNull android.net.EthernetNetworkUpdateRequest, @Nullable java.util.concurrent.Executor, @Nullable android.os.OutcomeReceiver<java.lang.String,android.net.EthernetNetworkManagementException>);
   }
diff --git a/framework/Android.bp b/framework/Android.bp
index 53f9217..f31a7d5 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -64,6 +64,7 @@
         ":framework-connectivity-sources",
         ":net-utils-framework-common-srcs",
         ":framework-connectivity-api-shared-srcs",
+        ":framework-connectivity-javastream-protos",
     ],
     aidl: {
         generate_get_transaction_name: true,
@@ -85,7 +86,6 @@
         "net-utils-device-common",
     ],
     static_libs: [
-        "framework-connectivity-protos",
         "modules-utils-backgroundthread",
         "modules-utils-build",
         "modules-utils-preconditions",
@@ -182,22 +182,36 @@
     ],
 }
 
-// TODO: reduce size of this library; consider using
-// proto nano for example
-java_library {
+filegroup {
     name: "framework-connectivity-protos",
-    sdk_version: "module_current",
-    min_sdk_version: "30",
-    proto: {
-        type: "lite",
-    },
     srcs: [
-        "proto/**/*.*",
+        "proto/**/*.proto",
     ],
-   static_libs: ["libprotobuf-java-lite"],
-    apex_available: [
-        "com.android.tethering",
+    visibility: ["//frameworks/base"],
+}
+
+gensrcs {
+    name: "framework-connectivity-javastream-protos",
+    depfile: true,
+
+    tools: [
+        "aprotoc",
+        "protoc-gen-javastream",
+        "soong_zip",
     ],
-    lint: { strict_updatability_linting: true },
-    visibility: ["//visibility:private"],
+
+    cmd: "mkdir -p $(genDir)/$(in) " +
+        "&& $(location aprotoc) " +
+        "  --plugin=$(location protoc-gen-javastream) " +
+        "  --dependency_out=$(depfile) " +
+        "  --javastream_out=$(genDir)/$(in) " +
+        "  -Iexternal/protobuf/src " +
+        "  -I . " +
+        "  $(in) " +
+        "&& $(location soong_zip) -jar -o $(out) -C $(genDir)/$(in) -D $(genDir)/$(in)",
+
+    srcs: [
+        ":framework-connectivity-protos",
+    ],
+    output_extension: "srcjar",
 }
diff --git a/service/jarjar-rules.txt b/service/jarjar-rules.txt
index 06a4cef..e90b29b 100644
--- a/service/jarjar-rules.txt
+++ b/service/jarjar-rules.txt
@@ -105,5 +105,8 @@
 # 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
+
 # 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/src/com/android/server/connectivity/TcpKeepaliveController.java b/service/src/com/android/server/connectivity/TcpKeepaliveController.java
index acfbb3c..a9cb2fa 100644
--- a/service/src/com/android/server/connectivity/TcpKeepaliveController.java
+++ b/service/src/com/android/server/connectivity/TcpKeepaliveController.java
@@ -124,7 +124,12 @@
             final TcpKeepalivePacketDataParcelable tcpDetails = switchToRepairMode(fd);
             // TODO: consider building a TcpKeepalivePacketData directly from switchToRepairMode
             return fromStableParcelable(tcpDetails);
-        } catch (InvalidPacketException | InvalidSocketException e) {
+        // Use separate catch blocks: a combined catch would get wrongly optimized by R8
+        // (b/226127213).
+        } catch (InvalidSocketException e) {
+            switchOutOfRepairMode(fd);
+            throw e;
+        } catch (InvalidPacketException e) {
             switchOutOfRepairMode(fd);
             throw e;
         }