堆溢出处理

Posted 2020-09-07 点滴

import java.util.Vector;

/**
 * Created by xxd on 2017/4/2.
 */
public class DumpOOM {
    public static void main(String[] args){
        Vector v = new Vector();
        for (int i=0;i<25;i++){
            v.add(new byte[1*1024*1024]);
        }
    }
}

 
使用MAT工具分析堆内存溢出，下载地址：http://www.eclipse.org/mat/
-Xmx20m -Xms5m "-XX:OnOutOfMemoryError=D:/tools/jdk1.7_40/bin/printstack.bat %p" -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=d:/a.dump