code: public void onCommunicationException(Throwable error) {
  		String msg = I18nProvider.getGlobal().commandCommunicationError() + ":\n" + error.getMessage();
  		Log.logWarn(msg, error);
  		SC.warn(msg);
  	}
docs: Default behaviour for handling a communication exception. Shows a warning window to the user.
  
  @param error error to report