jmap命令結合mat插件分析內存泄露

本文轉載自查看原文 2013-06-11 23:40 3842 jvm

http://smallnetvisitor.iteye.com/blog/1826434

User.java

package gc;

import java.util.ArrayList;
import java.util.List;

/** 
 * @Package gc

 * @ClassName: User

 * @Description: TODO(這里用一句話描述這個類的作用)

 * @author andy

 * @date 2013-6-9 下午4:46:13

 */
public class User {
    private String id;  
    private String name;  
  
    public String getId() {  
        return id;  
    }  
  
    public void setId(String id) {  
        this.id = id;  
    }  
  
    public String getName() {  
        return name;  
    }  
  
    public void setName(String name) {  
        this.name = name;  
    }  
  
    public User(String id, String name) {  
        super();  
        this.id = id;  
        this.name = name;  
    } 
    
    
    public static void main(String[] args) {  
        List<User> list = new ArrayList<User>();  
        for (int i = 1; i < 10000; i++) {  
            User o = new User(i + "", System.currentTimeMillis() + "");  
            list.add(o);  
            o = null;  
        }  
        System.out.println("end");  
        try {  
            Thread.sleep(100000000l);  
        } catch (InterruptedException e) {  
            e.printStackTrace();  
        }  
    }  
}