code: private void startHandleModifyThread(final WatchEvent<?> event, final Path currentPath) {
  		ThreadUtil.execute(new Runnable(){
  			@Override
  			public void run() {
  				ThreadUtil.sleep(delay);
  				eventSet.remove(Paths.get(currentPath.toString(), event.context().toString()));
  				watcher.onModify(event, currentPath);
  			}
  		});
  	}
docs: 开启处理线程
  
  @param event 事件
  @param currentPath 事件发生的当前Path路径