I haven't been able to track what's been going on here since the presentations at Java One a few months ago, but from a quick scan of the posts here, we don't expect Oracle to release a Raspbian-compatible version of a JDK until they release Java 8 in Fall 2013, correct?
So, I've gotten the impression that the best-performing Raspbian-compatible alternative is OpenJDK 7 with JamVM, which I timed and am very impressed, but Avian doesn't seem to fare as well as JamVM (although still far better than OpenJDK 7). Mind you, these were just a few typical demos that could be quickly compiled that were picked at random to make sure my installation was working.
Next, on to try out some OpenGL ES stuff ... with Blocky as a starting point?
The best things in life aren't things ... but, a Pi comes pretty darned close!
"Education is not the filling of a pail, but the lighting of a fire." -- W.B. Yeats
In theory, theory & practice are the same - in practice, they aren't!!!