如何通过产生线程来击打java.lang.OutOfMemoryError? [英] How to hit java.lang.OutOfMemoryError by spawning threads?

问题描述

我遇到了这个博客网站，作者在机器抛出java.lang.OutOfMemoryError之前针对最大线程数进行测试.但是，在下面的测试代码中，尽管产生了任意大线程，但我还是无法解决该错误.

I came across this blog site where the author is testing against the maximum number of threads before the machine throws a java.lang.OutOfMemoryError. However, in my below test codes, i am unable to hit the error despite the arbitrary large threads spawned.

    for (int i = 0; i < 1000000; i++) {
        Thread thread = new Thread(new Car());
        thread.setName(Integer.toString(i));
        thread.start();
    }

推荐答案

尝试在线程内部进行睡眠，否则它可能会很快结束并收集垃圾，如

Try sleeping inside the thread, otherwise it might end up too quickly and get garbage collected, as shown in the example code:

Thread t = new Thread(new Runnable() {
    @Override
    public void run() {
        try {
            while (!Thread.interrupted()) {
                Thread.sleep(1000);
            }
        } catch (InterruptedException ignored) {
            //
        }
    }
});

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