解锁另一个线程java拥有的锁

解锁另一个线程java拥有的锁

你会被允许使用自己的

Lock

吗？这是一个完全代理的类，

Lock

但是当被告知强制进行解锁时，它仅替换了它要替换的新锁。这应该具有您想要的效果。遗憾的是，它仍然无法处理悬空的锁，但现在变成了别人的问题。现在，您的锁已神奇解锁。

static class LockProxy<L extends Lock> implements Lock {    // The actual lock.    private volatile Lock lock;    public LockProxy(L lock) {        // Trap the lock we are proxying.        this.lock = lock;    }    @Override    public void lock() {        // Proxy it.        lock.lock();    }    @Override    public void lockInterruptibly() throws InterruptedException {        // Proxy it.        lock.lockInterruptibly();    }    @Override    public boolean tryLock() {        // Proxy it.        return lock.tryLock();    }    @Override    public boolean tryLock(long l, TimeUnit tu) throws InterruptedException {        // Proxy it.        return lock.tryLock(l, tu);    }    @Override    public void unlock() {        // Proxy it.        lock.unlock();    }    @Override    public Condition newCondition() {        // Proxy it.        return lock.newCondition();    }    // Extra functionality to unlock from any thread.    public void forceUnlock() {        // Actually just replace the perhaps locked lock with a new one.        // Kinda like a clone. I expect a neater way is around somewhere.        if (lock instanceof ReentrantLock) { lock = new ReentrantLock();        } else { throw new UnsupportedOperationException(     "Cannot force unlock of lock type "         + lock.getClass().getSimpleName());        }    }}