docs: @Override
      public synchronized void becomeNonCron() {
          verifyCanScheduleState();
          if (JobChangeLog.isEnabled()) {
              JobChangeLog.log("#job ...Becoming non-cron: {}", toString());
          }
          cron4jId.ifPresent(id -> {
              cron4jTask.becomeNonCrom();
              cron4jNow.getCron4jScheduler().deschedule(id);
              cron4jId = OptionalThing.empty();
          });
      }