I'm itching to take a look at Apple's "foundation for a new graphical client"
There are several parts of our Java SE 6 implementation (like the AWT widgets) that are not contributable, in much the same way that several parts of Oracle's implementation are not. However, the vast majority of our Swing Aqua Look and Feel implementation is, as well as the eAWT/eIO API. We intend to host the legacy AWT widget set using lightweight peers, but that work is still in progress."
Mike Swingler (Apple Java Engineer) on the java-dev list
http://lists.apple.com/archives/Java-dev/2010/Nov/msg00104.h...