Add missing override annotation to generated protos
diff --git a/compiler/src/test/golden/TestService.java.txt b/compiler/src/test/golden/TestService.java.txt
index 3dbaa26..e025d21 100644
--- a/compiler/src/test/golden/TestService.java.txt
+++ b/compiler/src/test/golden/TestService.java.txt
@@ -243,6 +243,7 @@
       this.methodId = methodId;
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public void invoke(Req request, io.grpc.stub.StreamObserver<Resp> responseObserver) {
       switch (methodId) {
@@ -259,6 +260,7 @@
       }
     }
 
+    @java.lang.Override
     @java.lang.SuppressWarnings("unchecked")
     public io.grpc.stub.StreamObserver<Req> invoke(
         io.grpc.stub.StreamObserver<Resp> responseObserver) {