I'm at JavaOne again, listening to all things good and Java.
Much cool stuff this year - if you take away one thing from JavaOne this year, it should be "Lambas". This is going to change the way you code, for the better. Simpler, faster, clearer, and more concise code is the result of using lamda expressions. Yeah, I know that you've been able to use closures in other languages, but this isn't a half-assed implementation. Better stable and late than early and broken.
Lot of talks on JavaFX 8 - also lots of cool new stuff. 3DViewer will let you import 3D models from Maya, Wavefront, Autodesk, etc. into either FXML or Java code, with real-time previews. VERY cool stuff.
Read more about it here: http://oracle.com/technetwork/java