How to shut down all Executors when quitting an application?

Question

According to Brian Goetz\'s Java Concurrency in Practice JVM can\'t exit until all the (nondaemon) threads have terminated, so failing to shut down an Executor could pre

Answer 1

Probably he meant to say JVM can't stop on its own until nondaemon threads are finished. Its like running a simple class from command like java SomeClass and after the execution of main method JVM stops.

System.exit is a JVM termination command, even if daemon threads are running JVM will shutdown.