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手写java死锁,java命令查看死锁

作者:互联网

类Thread1

package github.write.funding2.Write;
public class Thread1 implements Runnable {
    private Object lock1;
    private Object lock2;

    public Thread1(Object lock1, Object lock2) {
        this.lock1 = lock1;
        this.lock2 = lock2;
    }
    @Override
    public void run() {


        synchronized (lock1){

            try {
                Thread.sleep(40);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (lock2){

                System.out.println(Thread.currentThread().getName());
            }
        }
    }
}

类Thread2

package github.write.funding2.Write;

public class Thread2 implements Runnable {

    private Object lock1;
    private Object lock2;

    public Thread2(Object lock1, Object lock2) {
        this.lock1 = lock1;
        this.lock2 = lock2;
    }

    @Override
    public void run() {


        synchronized (lock2){

            try {
                Thread.sleep(40);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (lock1){

                System.out.println(Thread.currentThread().getName());
            }
        }
    }
}

测试类

package github.write.funding2.Write;


public class LockTest {

    public static void main(String[] args) {
        Object o1=new Object();
        Object o2=new Object();


        new Thread(new Thread1(o1,o2),"Thread1").start();
        new Thread(new Thread2(o1,o2),"Thread2").start();
    }
}

Java命令查看死锁
jps(jvm process status)

F:\GitClone\funding2>jps
12144 Launcher
2784 Jps
11188
11096 LockTest
3160 KotlinCompileDaemon

F:\GitClone\funding2>jstack 11096

Found one Java-level deadlock:
=============================
"Thread1":
  waiting to lock monitor 0x000002091a3cb1f8 (object 0x00000000d5c3a7d0, a java.lang.Object),
  which is held by "Thread1"
"Thread2":
  waiting to lock monitor 0x000002091a3cc698 (object 0x00000000d5c3a7e0, a java.lang.Object),
  which is held by "Thread2"

标签:java,Object,lock2,死锁,lock1,Thread2,Thread1,手写,public
来源: https://blog.csdn.net/qq_42453201/article/details/110739834