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Java的Object.wait(long)在等待时间过去后会继续往后执行吗

Object.wait(long)方法相比于wait，多了个等待时长，那么当等待时长过去后，线程会继续往下执行吗？

单个线程执行

多个线程并发执行

public class ThreadWaitDemo {

public static final int WAIT_IN_SECONDS = 2;public static final int NOTIFY_IN_SECONDS = 6;public static void main(String[] args) throws InterruptedException {    ThreadWaitDemo threadWait = new ThreadWaitDemo();    Thread a = new Thread(threadWait::justWaitAndPrint, "t1");    Thread b = new Thread(threadWait::justNotify, "t2");    a.start();    //  ① 先注释这段，让t1自己执行    b.start();}public synchronized void justWaitAndPrint()  {    try {        System.out.println(Thread.currentThread().getName() + ": I am in");        System.out.println(Thread.currentThread().getName() + ": I am gonna wait");        long start = System.currentTimeMillis();        wait(WAIT_IN_SECONDS * 1000);        // 如果时间过了就可以解除等待状态的话，那么这里的时间间隔就会接近2s        System.out.println("wait end " + (System.currentTimeMillis() - start) / 1000.0 + "seconds");    } catch (Exception e) {        System.out.println(Thread.currentThread().getName() + ": Oops, something bad happen " + e);    }    System.out.println(Thread.currentThread().getName() + ": I am out");}public synchronized void justNotify()  {    try {        TimeUnit.SECONDS.sleep(NOTIFY_IN_SECONDS);        System.out.println(Thread.currentThread().getName() + ": I am in");    } catch (Exception e) {        System.out.println(Thread.currentThread().getName() + ": Oops, something bad happen " + e);    }    System.out.println(Thread.currentThread().getName() + ": I am out");}

}

第一种情况下，运行结果 t1: I am in t1: I am gonna wait wait end 2.004seconds t1: I am out

第二种情况下，运行结果

t1: I am in t1: I am gonna wait t2: I am in t2: I am out wait end 6.002seconds // 等待时间会随NOTIFY_IN_SECONDS变化 t1: I am out

结论：wait(long)在无锁竞争情况下，在等待时间过去后就直接重新获取锁，往后执行；但是在竞争条件下，都会等获取到锁了才可以往下执行

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