java - 以下情况会导致死锁吗？

Question

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已关闭 11 年前。

假设当前线程持有锁，那么同一个线程调用

synchronize(lock)

再说一遍，会发生死锁吗？

我依稀记得锁对于同一个线程是可重入的，什么意思？

Answer 1

来自documentation :

Thread cannot acquire a lock owned by another thread. But a thread can acquire a lock that it already owns. Allowing a thread to acquire the same lock more than once enables reentrant synchronization. This describes a situation where synchronized code, directly or indirectly, invokes a method that also contains synchronized code, and both sets of code use the same lock.