Question

同样的问题再次被回答（Creating a memory leak with Java）但是现在Java 8删除了永久代，我认为更新这个主题会很有用，因为大多数答案都依赖于耗尽自由空间。永久代。

那么，在Java 8中创建内存泄漏的最简单方法是什么？

Answer 1

我认为常见的内部内存泄漏会起作用。从互联网上取的例子：

public class LeakFactory
{//Just so that we have some data to leak
    int myID = 0;
// Necessary because our Leak class is non-static
    public Leak createLeak()
    {
        return new Leak();
    }

// Mass Manufactured Leak class
    public class Leak
    {//Again for a little data.
       int size = 1;
    }
}

public class SwissCheese
{//Can't have swiss cheese without some holes
    public Leak[] myHoles;

    public SwissCheese()
    {
    // let's get the holes and store them.
        myHoles = new Leak[1000];

        for (int i = 0; i++; i<1000)
        {//Store them in the class member
            myHoles[i] = new LeakFactory().createLeak();
        }

    // Yay! We're done! 

    // Buh-bye LeakFactory. I don't need you anymore...
    }
}

这里发生的是createLeak（）工厂方法返回Leak类，理论上LeakFactory对象有资格删除GC，因为我们不会继续引用它。但Leak类需要LeakFactory存在，因此LeakFactory永远不会被删除。无论您使用什么Java版本，这都会造成内存泄漏。

在Java 8中创建内存泄漏

1 个答案: