title: shutdown hook vs finalizer method
body: <p>I just fail to understand why must one use Runtime.addShutdownHook. If you want to do some cleanup when the jvm exits, why not just overload the finalize method of the daemon class. What is the advantage of using shutdown hook over finalize method.</p>
  
  <p>Also there is a deprecated function runFinalizersOnExit. If I set it to false, I believe finalizers won't run. This contradicts the java guarantee that finalizers always run before garbage collections.</p>