AnotherDeadLock.java Source code

Introduction

Here is the source code for AnotherDeadLock.java

Source

public class AnotherDeadLock {
    public static void main(String[] args) {
        final Object resource1 = "resource1";
        final Object resource2 = "resource2";
        // t1 tries to lock resource1 then resource2
        Thread t1 = new Thread() {
            public void run() {
                // Lock resource 1
                synchronized (resource1) {
                    System.out.println("Thread 1: locked resource 1");

                    try {
                        Thread.sleep(50);
                    } catch (InterruptedException e) {
                    }

                    synchronized (resource2) {
                        System.out.println("Thread 1: locked resource 2");
                    }
                }
            }
        };

        // t2 tries to lock resource2 then resource1
        Thread t2 = new Thread() {
            public void run() {
                synchronized (resource2) {
                    System.out.println("Thread 2: locked resource 2");

                    try {
                        Thread.sleep(50);
                    } catch (InterruptedException e) {
                    }

                    synchronized (resource1) {
                        System.out.println("Thread 2: locked resource 1");
                    }
                }
            }
        };

        // If all goes as planned, deadlock will occur,
        // and the program will never exit.
        t1.start();
        t2.start();
    }
}