- Josh Bloch automatic resource management: ARM proposal
- Collection literals from the same author
- Improved type inference for generics (a.k.a. Diamond) - proposal
Unfortunately, both closures and improved exception handling were dropped from Java 7. Well, maybe next time... Still, enhancements coming with Java 7 seems to be great and - what's important - concentrated on relieving the typical pain of a Java programmer. Keep it that way!