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()); } }}
