docs: public synchronized void clearDisappearedJob() {
          getCron4jJobList().stream().filter(job -> job.isDisappeared()).forEach(job -> {
              final LaJobKey jobKey = job.getJobKey();
              jobKeyJobMap.remove(jobKey);
              jobOrderedList.remove(job);
              job.getJobUnique().ifPresent(jobUnique -> jobUniqueJobMap.remove(jobUnique));
              cron4jTaskJobMap.remove(job.getCron4jTask());
          });
      }