Fullscreen feature for Java Apps on OSX Lion

Question

How can I (natively) implement the fullscreen feature of OSX Lion in a Java application?

The current answers given incorporate a good method for achieving a sort-of-

Answer 1

I don't know about natively, but Java does support fullscreen applications without needing native code:

http://saipullabhotla.blogspot.com/2012/05/enabling-full-screen-mode-for-java.html

The question is has Apple implemented that with Lion in their JDK.