title: System.exit(1) instead of return
body: <p>just found an example on Oracle site, they use System.exit() if console is == null, but I can't see why it is better than simple return. 
  Here's the link: <a href="http://docs.oracle.com/javase/tutorial/essential/regex/test_harness.html" rel="nofollow">http://docs.oracle.com/javase/tutorial/essential/regex/test_harness.html</a></p>