写一断死锁的java代码

下面是一个简单的 Java 死锁例子：

public class DeadlockDemo {
    private static Object lock1 = new Object();
    private static Object lock2 = new Object();
    
    public static void main(String[] args) {
        Thread t1 = new Thread(new Runnable() {
            public void run() {
                synchronized(lock1) {
                    System.out.println("Thread 1: Holding lock 1...");
                    try {
                        Thread.sleep(10);
                    } catch (InterruptedException e) {}
                    System.out.println("Thread 1: Waiting for lock 2...");
                    synchronized(lock2) {
                        System.out.println("Thread 1: Holding lock 1 and lock 2...");
                    }
                }
            }
        });
        
        Thread t2 = new Thread(new Runnable() {
            public void run() {
                synchronized(lock2) {
                    System.out.println("Thread 2: Holding lock 2...");
                    try {
                        Thread.sleep(10);
                    } catch (InterruptedException e) {}
                    System.out.println("Thread 2: Waiting for lock 1...");
                    synchronized(lock1) {
                        System.out.println("Thread 2: Holding lock 1 and lock 2...");
                    }
                }
            }
        });
        
        t1.start();
        t2.start();
    }
}

在这个例子中，有两个线程分别占用了不同的锁 lock1 和 lock2，但是在执行过程中，它们又都想要获取对方占用的锁。因此，它们就会陷入死锁状态，无法继续执行下去。