addshutdownHook is not invoked when sending a QUIT signal

Question

I would like to terminate the Java application when 'kill -s 3 ' is executed. But Java dumps the thread information instead. Do I need to use different kill signal?

Answer 1

According to JVMs and kill signals, the ShutdownHook is not run and the jvm is not shutdown when using signal SIGQUIT (3). Just use the default signal SIGTERM (15).

Answer 2

whats wrong with just kill? it shold send the default signal, SIGTERM

Answer 3

take a look at this: How to stop java process gracefully?

kill -3 or kill -s 3 will always generate the thread dump.

In general programming, finalizer and shutdownhooks should not be used.