code: public void stop() {
          if (msgRouter != null) {
              TrConfigurator.unsetMessageRouter(msgRouter);
          }
          if (configListener != null) {
              configListener.unregister();
          }
      }
docs: The bundle is stopping. Inform the TrConfigurator, who in turn will inform
  the TrService. Unregister the config listener service.