如何在Java中杀死死锁线程？ [英] How to kill deadlocked threads in Java?

问题描述

我想杀死陷入死锁状态的线程。首先，我们可以使用 findDeadlockedThreads（）<检测处于死锁状态的线程ID / code> 中的方法 java.lang.management 。

I'd like to kill threads that are stuck in deadlock state. First, we can detect thread ids in deadlock state using the findDeadlockedThreads() method of the ThreadMXBean class in java.lang.management.

然后，我想通过线程ID杀死线程，因此我有两个相关的问题：

（1）如何获得线程的控制权通过线程ID？

（2）如何杀死被阻止的线程？我认为invokting interrupt（）方法会给线程一个异常并将终止该线程。

Then, I'd like to kill the threads by thread ids, and thus I have two related questions:
(1) How to get the control of a thread by thread id?
(2) How to kill a blocked thread? I think that invokting interrupt() method will give an exception to the thread and will kill the thread.

推荐答案

从根线程组，您可以使用Thread类枚举所有正在运行的线程。然后你可以在与你的ID相匹配的那个上调用Thread.stop。

From the root threadgroup, you can have the Thread class enumerate all running threads. Then you can call Thread.stop on the one that matches your ID.

尽管如此，由于可能会使对象处于不一致的状态，这是非常危险的。我不相信中断方法会导致线程被释放而等待同步锁定，所以（邪恶）停止方法

Having said that, this is highly dangerous due to the potential to leave objects in an inconsistent state. I don't believe that the interrupt method will cause a thread to be freed up that is stuck in waiting on a synchronization lock, so the (evil) stop methods

参见还有： Java Thread Primitive Deprecation 。

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