Java runtime becomes the operating system

I am worry a lot about how great Java/Javabeans and all the runtime work they are doing is and how much excitement this is generating. I am literally losing sleep over this issue since together with a move to more server based applications it seems like it could make it easy for people to do competitive operating systems. The next paragraph is curious too. I am very interested to get your thoughts on this. Prior to the advanced work you are driving what kind of defenses do we have against this? I certainly havent’ come up with enough to relax about the situation and it is undermining my creativity.