如何在OSX上使用Java进行全屏显示

I've been trying and failing to use the java full screen mode on the primary display of an OSX system. Whatever I've tried I can't seem to get rid of the 'apple' menu bar from the top of the display. I really need to paint over the entire screen. Can anyone tell me how to get rid of the menu?I've been trying and failing to use the java fu