aion-server 4.8

package com.aionemu.commons.network.util;

import java.time.Duration;
import java.util.stream.Stream;

import com.aionemu.commons.utils.ExitCode;
import com.aionemu.commons.utils.concurrent.DeadLockDetector;

/**
 * This test is for checking print of deadlock report. Should not be executed during unit test phase
 * 
 * @author ATracer, Neon
 */
public class DeadlockTest {

	private static final Object lock1 = new Object();
	private static final Object lock2 = new Object();

	public static void main(String... args) {
		DeadLockDetector.start(Duration.ofSeconds(2), () -> System.exit(ExitCode.ERROR));
		createDeadlock();
	}

	private static void createDeadlock() {
		synchronized (lock1) {
			// The stream is just to generate a longer stack trace
			Stream.of("").limit(1).forEach(ignore -> {
					new Thread(() -> {
						System.out.println("Locking lock 2 from thread 2");
						synchronized (lock2) {
							System.out.println("Deadlocking");
							synchronized (lock1) {
								System.out.println("This will not be printed");
							}
						}
					}).start();
					try {
						Thread.sleep(100);
					} catch (InterruptedException ignored) {
					}
					synchronized (lock2) {
						System.out.println("This will not be printed");
					}
			});
		}
	}
}