Java IDE

Hi Im not sure what Jave IDE I should use.
Any recomendations? I've tried Eclipse once, was satisfied with it. But how would you compare it to other IDE?
Preferbly I'm looking for a free IDE, e.g. Open-Source.

Netbeans, because more is still less than most and better than less.  Not that I'd fucking know, Java is slow as fuck and I'll never touch it again.