if d := atomic.LoadInt64(&l.responseDelay); d != 0 {
		time.Sleep(time.Duration(d))
	}

	l.mutex.Lock()
	defer l.mutex.Unlock()
	if len(args.UID) != 0 {
		return false, fmt.Errorf("ForceUnlock called with non-empty UID: %s", args.UID)
	}
	delete(l.lockMap, args.Resources[0]) // Remove the lock (irrespective of write or read lock)
	reply = true
	return reply, nil