So by JDT you mean something other than the Java Development Tools of Eclipse, I guess. To me, Eclipse has been mostly stable/stagnant for many years (4.2 has

So by JDT you mean something other than the Java Development Tools of Eclipse, I guess. To me, Eclipse has been mostly stable/stagnant for many years (4.2 has actually felt like a regression from 3.x, in that the UI lots some features, like how/where to position views). NetBeans had been lacking, but the current version seems to have improved lot for Java development (I last tried it several years ago), and it has always looked much better than Eclipse, IMHO. (Ironically, the fake-native Swing looks much nicer than Eclipse with native scrollbars+buttons, but non-native everything else like the tool-, sorry, "Coolbar" and its weird tabs (incredibly ugly, esp. the "new" ones).) The interesting changes to Eclipse to make it more future-proof have been under the hood, I think, like a more modern plugin runtime (but I don't really know details on that one).