diff --git a/test-mock/Android.bp b/test-mock/Android.bp
index 248c117..7d0f92f 100644
--- a/test-mock/Android.bp
+++ b/test-mock/Android.bp
@@ -37,6 +37,7 @@
         "android.test.mock",
     ],
     compile_dex: true,
+    default_to_stubs: true,
 }
 
 // Make the current.txt available for use by the cts/tests/signature tests.
diff --git a/test-mock/src/android/test/mock/MockContentProvider.java b/test-mock/src/android/test/mock/MockContentProvider.java
index e9a5ff7..3206adc 100644
--- a/test-mock/src/android/test/mock/MockContentProvider.java
+++ b/test-mock/src/android/test/mock/MockContentProvider.java
@@ -29,6 +29,7 @@
 import android.content.res.AssetFileDescriptor;
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.Binder;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.ICancellationSignal;
@@ -282,7 +283,7 @@
      * @hide
      */
     public IBinder getIContentProviderBinder() {
-        throw new UnsupportedOperationException("unimplemented mock method");
+        return new Binder();
     }
 
     /**