When a thread a tries to acquire a JUC lock, while this lock has been acquired by another thread, then thread a has to "stop" its execution and wait until this lock is released or times out.
当线程a试图去获得一个JUC锁，但这个锁却已经被另外一个线程获得，那么线程A不得不“停止”，直到这个锁被释放或者超时。
When a thread a tries to acquire a JUC lock, while this lock has been acquired by another thread, then thread a has to "stop" its execution and wait until this lock is released or times out.
当线程a试图去获得一个JUC锁，但这个锁却已经被另外一个线程获得，那么线程A不得不“停止”，直到这个锁被释放或者超时。
应用推荐