从ShutdownHook中查找程序退出的原因(Find, from a ShutdownHook, why a program exits)

 如果我有一个可以出于各种原因退出的Java程序，例如： 
 
 
 
 因为设置为“关闭时退出”的主窗口已关闭 
 
 
 因为代码中有一些System.exit（0） 
 
 
 因为根本没有窗口（并且没有设置为关闭时退出）但是仍有几个线程正在运行，然后在一个点上只有守护程序线程在运行，因此程序退出。 
 
 
 我安装了一个关机钩（运行正常）。 
 
 有没有办法知道，从我的关闭钩子，什么导致Java程序退出？ 
 
 （请注意，我不会问是否将System.exit(...)传播到代码库是否是个好主意：这不是这个问题的意思） 
 
 基本上我想知道我是否强迫自己拦截每个可能的JVM出口点并在那里添加信息，或者是否已经有一种允许这样做的方法。 

If I've got a Java program that can exit for various reasons, like:
 
 
 
because the main window, which is set to "exit on close", was closed
 
 
because there are some System.exit( 0 ) in the code
 
 
because there are no more window at all (and none was set to exit on close) but there's still several threads running then at one point there are only daemon threads running and hence the program exits.
 
 
And I've got a shutdown hook installed (which is running fine).
 
Is there any way to know, from my shutdown hook, what caused the Java program to exit?
 
(note that I'm not asking if it's a good idea or not to have System.exit(...) spread over the codebase: this is not what this question is about)
 
Basically I'd like to know if I'm forced myself to intercept every single possible JVM exit point and add infos there or if there's already a method allowing to do that.