code: @Override
      public void stop() {
          try {
              // gracefully shutting down
              scheduler.shutdown(false);
          } catch (final SchedulerException se) {
              LOGGER.error("Error occurred while stopping the cron scheduler : " + se.getMessage(), se);
          }
      }
docs: /*
  (non-Javadoc)
  
  @see com.nokia.dempsy.output.OutputExecuter#stop()