private void ensureModuleNamesIsMutable() {
          com.google.protobuf.Internal.ProtobufList<java.lang.String> tmp =
              moduleNames_;  if (!tmp.isModifiable()) {
            moduleNames_ =
                com.google.protobuf.GeneratedMessageLite.mutableCopy(tmp);
           }
        }
private void ensureModuleNamesIsMutable()