docs: public void beforeRecover() {
  		if (data.getPeriod() > 0) {			
  			final long now = System.currentTimeMillis();
  			long startTime = data.getStartTime();
  			while(startTime <= now) {
  				startTime += data.getPeriod();
  				data.setStartTime(startTime);				
  			}			
  			if (logger.isDebugEnabled()) {
  				logger.debug("Task with id "
  						+ data.getTaskID() + " start time reset to " + data.getStartTime());
  			}
  		}
  	}