wait時interrupt出現異常

package com.freeflying.thread.communication;
/**
 * 在wait時線程被interrupt
 * @ClassName: InterruptMeetWait  
 * @Description:
 * @author freeflying
 * @date 2018年7月17日
 */
public class InterruptMeetWait {
	public static void main(String[] args) {
		try {
			Object lock=new Object();
			InterruptMeetWaitA interruptMeetWaitA=new InterruptMeetWaitA(lock);
			interruptMeetWaitA.start();
			Thread.sleep(1000);
			interruptMeetWaitA.interrupt();
		} catch (Exception e) {
		}
	}
}
class InterruptMeetWaitEx{
	public void testMethod(Object lock) {
		try {
			synchronized (lock) {
				System.out.println("begin wait!");
				lock.wait();
				System.out.println("end wait!");
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}
class InterruptMeetWaitA extends Thread{
	private Object lock;
	public InterruptMeetWaitA(Object lock) {
		this.lock=lock;
	}
	@Override
	public void run() {
		InterruptMeetWaitEx interruptMeetWaitEx=new InterruptMeetWaitEx();
		interruptMeetWaitEx.testMethod(lock);
	}
}

結果：

begin wait!
java.lang.InterruptedException
	at java.lang.Object.wait(Native Method)
	at java.lang.Object.wait(Unknown Source)
	at com.freeflying.thread.communication.InterruptMeetWaitEx.testMethod(InterruptMeetWait.java:26)
	at com.freeflying.thread.communication.InterruptMeetWaitA.run(InterruptMeetWait.java:42)