Unlocking lock owned by another thread java

Question

I have a LockManager that manages the locks of several threads. Sometimes the threads are bad boys, and I have to kill them and ask the LockManager to release all their lock

Answer 1

I've done this with an AtomicReference which gets zero points for elegance, but I don't know of another way.

class PseudoLock {

    private final AtomicReference mylock = new AtomicReference<>(Boolean.FALSE);


    boolean trylock() {
        return mylock.compareAndSet(Boolean.FALSE, Boolean.TRUE);
    }

    void unlock() {
        boolean done = mylock.compareAndSet(Boolean.TRUE, Boolean.FALSE);
        if (!done) {
            throw new IllegalStateException("Cannot unlock an unlocked thread");
        }
    }
}

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