MAT分析内存泄露

Demo：

public class LeakDemo { private static final List holderList = new ArrayList(); public static void main(String[] args) throws InterruptedException { while (true) { LargeObject largeObject = new LargeObject(); holderList.add(largeObject); Thread.sleep(10); } } static class LargeObject { private byte[] data; public LargeObject() { this.data = new byte[1024 * 1024]; } }}

观察内存情况，发现一直上涨：

输出堆转储文件，用MAT进行分析：

Dominator Tree: