message: Fixed deprecated method in GRPC Java test.
diff: @@ -141,7 +141,7 @@ public class JavaGrpcTest {
  channel = ManagedChannelBuilder.forAddress("localhost", port)
  // Channels are secure by default (via SSL/TLS). For the example we disable TLS to avoid
  // needing certificates.
  - .usePlaintext(true)
  + .usePlaintext()
  .directExecutor()
  .build();
  blockingStub = MonsterStorageGrpc.newBlockingStub(channel);
  