Indeed, it's not all Java's fault. But I think Java does contribute to the overhead because my experience with Java programs in general usually involves long startup time and excessive memory usage.
I see your point there. I myself tolerate Eclipse on Ubuntu, where the UI surprisingly fits, at least for me. Its almost indistinguishable from other UIs, except maybe Spotify which is (IMO) way ahead of the rest. But I cant stand Eclipse on my Mac OS X and there you can see all the stuff you mentioned.
