java死锁代码示例

下面是一个简单的Java死锁代码示例：

public class DeadlockExample {
    private final Object lock1 = new Object();
    private final Object lock2 = new Object();

    public void method1() {
        synchronized (lock1) {
            System.out.println("Method 1 acquired lock1");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (lock2) {
                System.out.println("Method 1 acquired lock2");
            }
        }
    }

    public void method2() {
        synchronized (lock2) {
            System.out.println("Method 2 acquired lock2");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (lock1) {
                System.out.println("Method 2 acquired lock1");
            }
        }
    }

    public static void main(String[] args) {
        DeadlockExample example = new DeadlockExample();
        Thread thread1 = new Thread(() -> example.method1());
        Thread thread2 = new Thread(() -> example.method2());
        thread1.start();
        thread2.start();
    }
}

在上面的代码中，有两个线程分别执行`method1`和`method2`方法。每个方法都需要获得两个锁才能执行，但是它们的锁顺序不同，这就导致了死锁的可能性。如果`thread1`获得了`lock1`，然后`thread2`获得了`lock2`，那么它们就会互相等待对方释放锁，从而进入死锁状态。