diff --git a/buildstubs-t/Android.bp b/buildstubs-t/Android.bp
index 385abc6791..9ca3fd27c7 100644
--- a/buildstubs-t/Android.bp
+++ b/buildstubs-t/Android.bp
@@ -37,6 +37,11 @@ filegroup {
     srcs: [],
 }
 
+filegroup {
+    name: "ethernet-service-updatable-sources",
+    srcs: [],
+}
+
 filegroup {
     name: "services.connectivity-netstats-jni-sources",
     srcs: [
diff --git a/buildstubs-t/stubs-src/com/android/server/EthernetService.java b/buildstubs-t/stubs-src/com/android/server/EthernetService.java
new file mode 100644
index 0000000000..4a06e1ef61
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/EthernetService.java
@@ -0,0 +1,31 @@
+/*
+ * 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 android.content.Context;
+
+/**
+ * Fake EthernetService class for branches that do not have the updatable EthernetService yet,
+ * to allow building the T service-connectivity before sources are moved to the branch.
+ */
+public final class EthernetService {
+    /** Create instance */
+    public static EthernetServiceImpl create(Context ctx) {
+        throw new RuntimeException("This is a stub class");
+    }
+}
+
diff --git a/buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java b/buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java
new file mode 100644
index 0000000000..eb3bfa06b5
--- /dev/null
+++ b/buildstubs-t/stubs-src/com/android/server/EthernetServiceImpl.java
@@ -0,0 +1,28 @@
+/*
+ * 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 android.os.Binder;
+
+/** Stub class for EthernetServiceImpl */
+public class EthernetServiceImpl extends Binder {
+    /** Start service */
+    public void start() {
+        throw new RuntimeException("This is a stub class");
+    }
+}
+