In the spirit of If you could get rid of one thing from Java..., if you could, what one thing about Java would you "fix"? This question is as inclusive as you want to make it. You want Java "open-sourced"? Or you'd like generics implemented "properly" instead of via type erasure? Or you want Sun to fix the insane version numbering scheme for Java? Share it here.
"The aim of an argument or discussion
should not be victory, but progress." --Joseph Joubert