java同步和异常处理

Question

如果我有一个 synchronized block ，并且在该 block 内的某处抛出一个未在 synchronized block 内捕获的异常，当异常传播出它时是否会放弃锁？(同步块(synchronized block))

synchronized( mutex )
{
    throw new Exception( "" );
}

Answer 1

锁总是被释放。

来自 JLS §14.19 :

"If execution of the Block completes normally, then the lock is unlocked and the synchronized statement completes normally. If execution of the Block completes abruptly for any reason, then the lock is unlocked and the synchronized statement then completes abruptly for the same reason."