return OptionalThing.empty();
            }

            @Override
            public boolean isSchedulingDone() {
                return true;
            }

            @Override
            public void schedule(final org.lastaflute.job.subsidiary.CronConsumer cron) {
            }

            @Override

                return OptionalThing.empty();
            }

            @Override
            public boolean isSchedulingDone() {
                return true;
            }

            @Override
            public void schedule(final org.lastaflute.job.subsidiary.CronConsumer cron) {
            }

            @Override

                return OptionalThing.empty();
            }

            @Override
            public boolean isSchedulingDone() {
                return true;
            }

            @Override
            public void schedule(final org.lastaflute.job.subsidiary.CronConsumer cron) {
            }

            @Override

     */
    public void unregister(final ScheduledJob scheduledJob) {
        try {
            final JobManager jobManager = ComponentUtil.getJobManager();
            if (jobManager.isSchedulingDone()) {
                jobManager.findJobByUniqueOf(LaJobUnique.of(scheduledJob.getId())).ifPresent(job -> {
                    job.unschedule();