code: private String getQueue(final JobSubmissionEvent jobSubmissionEvent) {
      try {
        return Tang.Factory.getTang().newInjector(
            jobSubmissionEvent.getConfiguration()).getNamedInstance(JobQueue.class);
      } catch (final InjectionException e) {
        return this.defaultQueueName;
      }
    }
docs: Extract the queue name from the jobSubmissionEvent or return default if none is set.