导入:
Thread.sleep()抛的是InterruptedException,这个错误在源码中的注释为:
* Thrown when a thread is waiting, sleeping, or otherwise occupied,
* and the thread is interrupted, either before or during the activity.
* Occasionally a method may wish to test whether the current
* thread has been interrupted, and if so, to immediately throw
* this exception.
概述:
这个问题实际上是对interrupt方法的一个升级版,先解释interrupt,再解释源码中的判断
源码分析:
通过查看sleep的源码发现,它其实是一个native方法,参考前面run与start区别,来进行源码查找与分析
jvm源码:
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/file/111b95ad4584/src/share/vm/prims/jvm.cpp
Thread中native方法的源码,调用了JVM_Sleep方法:
http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/f0b93fbd8cf8/src/share/native/java/lang/Thread.c
可以看到,sleep这个方法在源码中是会判断当前进程是否处于interrupted状态的,也符合之前所所说的interrupt方法需要调用的线程支持