As a java developer who's moved over to ruby the JDK 7 feature list was starting to make me think it wouldn't be such a painful language to work with. Just 3 features would have made me think about working with java again. Type inference, closures and collection literals. Anything else they're working on for the java language is wasted time. They've never been great at writing APIs, they should stick to improving the language and letting the open source community drive the APIs forward.