Java Flight Recording 不报告 Java Mission Control 中的 DeadLock

如何解决Java Flight Recording 不报告 Java Mission Control 中的 DeadLock

我试图模拟我将使用 Java Flight Recorder 记录并使用 Java Mission Control 检查的死锁情况。

由于某种原因，线程部分下的阻塞线程没有被标记为阻塞，Java Mission Control 部分中的自动分析也没有报告死锁情况

同时，收集到的线程转储清楚地表明线程被阻塞并发现了 1 个死锁

public class ExternalDeadLock {

    private static Lock lock1 = new reentrantlock();
    private static Lock lock2 = new reentrantlock();

    static Runnable task1 = () -> {
        while(true) {
           try {
               lock1.lock();
               sleep();
               lock2.lock();

               System.out.println("task 1 still running");

           } finally {
               lock1.unlock();
               lock2.unlock();
           }
        }
    };

    static Runnable task2 = () -> {
        while(true) {
            try {
                lock2.lock();
                sleep();
                lock1.lock();

                System.out.println("task 2 still running");

            } finally {
                lock1.unlock();
                lock2.unlock();
            }
        }
    };

    private static void sleep() {
        try {
            Thread.sleep(100);
        }
        catch (InterruptedException e) {
            e.printstacktrace();
        }
    }

    public static void main(String[] args) throws InterruptedException {
        Scanner scanner = new Scanner(system.in);

        System.out.println("Press enter to initiate dead lock");
        scanner.nextLine();

        ExecutorService executor = Executors.newCachedThreadPool();

        executor.submit(task1);
        executor.submit(task2);

        executor.awaitTermination(10000,TimeUnit.DAYS);

    }
}

我使用所有默认设置的标准“分析”指标预设。

我试图了解我哪里做错了，导致 Java Mission Control 中的死锁情况如此不明显

Blocked thread looks as active Thread dump detects deadlock