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By javathreads
via java2jee.blogspot.com
Published: Feb 02 2009 / 14:45

Deadlock while terminating JVM
Quite recently I was implementing some very small command line tool in Java. In order to clean and release all resources in case user presses Ctrl+C I added shutdown hooks. Unfortunately by mistake I added: System.exit(0); line within the shutdown hook and my application couldn't close. When I used jps and jstack I saw a deadlock on exit() method? WTF - I thought - I assumed that this method tries to forcibly close the JVM. You now know what was the problem?
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