Executor.execute()肯定挂起 [英] Executor.execute() hangs definitely

问题描述

我最近在做nashorn，所以去阅读有关java.util.concurrent的内容.

Im doing nashorn lately and so went to read about the java.util.concurrent.

有一个问题，我可以运行像这样的简单执行程序:

Ive an issue where i can run simple executors like :

Executors.newFixedThreadPool();
new ThreadPoolExecutor();

代码片段运行，但是在任务结束后，控制台进程不会像挂起等待某些东西一样停止.

The snippets of code runs, but after the task is over the console process doesnt stop like if it hangs waiting something.

为什么会发生这种情况?

Any reason why this happens ?

推荐答案

那些执行程序正在生成非守护程序线程，这些线程阻止JVM退出.

Those executors are spawning non-daemon threads which are preventing the JVM from exiting.

尝试使用以下命令关闭执行器:

Try shutting down the executors when you are done with them using:

executor.shutdown();

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