@java.lang.SuppressWarnings({"ReferenceEquality"})
      private void mergeFsEvent(org.jetbrains.jps.api.CmdlineRemoteProto.Message.ControllerMessage.FSEvent value) {
        value.getClass();
  if (fsEvent_ != null &&
            fsEvent_ != org.jetbrains.jps.api.CmdlineRemoteProto.Message.ControllerMessage.FSEvent.getDefaultInstance()) {
          fsEvent_ =
            org.jetbrains.jps.api.CmdlineRemoteProto.Message.ControllerMessage.FSEvent.newBuilder(fsEvent_).mergeFrom(value).buildPartial();
        } else {
          fsEvent_ = value;
        }
        bitField0_ |= 0x00000004;
      }
@java.lang.SuppressWarnings({"ReferenceEquality"})
      private void mergeFsEvent(org.jetbrains.jps.api.CmdlineRemoteProto.Message.ControllerMessage.FSEvent value)