I used emacs for everything and relatively recently got into the situation of having to do some java.

http://jdee.sourceforge.net/

It handles that too. I like having one editor that can follow me everywhere. Maybe Eclipse or the others work better for java or more out of the box or some such thing, but to me there's a huge benefit to having my programming editing behaviors consistent in a terminal, my desktop, PHP, perl, C, C++, java, etc. (with mode/language specific enhancements of course).

If I grew up on Eclipse I'd probably feel the same way I suppose about it.