The only times finally won‘t be called are:
System.exit()try block以上来自：Does finally always execute in Java?
另见Sun Tutorials中的note：
try or catch code is being executed, then the finally block may not execute. Likewise, if the thread executing the try or catch code is interrupted or killed, the finally block may not execute even though the application as a whole continues.
原文：http://www.cnblogs.com/drizzlewithwind/p/6746639.html