Java 线程状态图

等待获取synchronized锁

WAITING

RUNNABLE

获取到synchronized锁

start()

TIMED_WAITING

Objects.wait(time) 刚被唤醒 但未取得 synchronized 锁

BLOCKED

NEW

TERMINATED

Object.wait with no timeoutThread.join with no timeoutLockSupport.park

Objects.wait() 刚被唤醒 但未取得 synchronized 锁

不可逆

创建线程

线程执行完成

Object.notify()Object.notifyAll() LockSupport.unpark()

超时或Object.notify()Object.notifyAll() LockSupport.unpark()

Thread.sleep(time)Object.wait(time)Thread.join(time)LockSupport.parkNanos(time)LockSupport.parkUntil(time)