docs: @Override
  	public Date getScheduleTime() {
  		if (nextScheduleTimeAdd < 0) {
  			return null;
  		}
  		
  		long current = System.currentTimeMillis();
  		
  		Date nextSchedule = new Date(current + nextScheduleTimeAdd);
  		logger.debug("Next schedule for job {} is set to {}", this.getClass().getSimpleName(), nextSchedule);
  		
  		return nextSchedule;
  	}