Yes, the name Mustang is no more… Java 6 is now official.. What’s in it?
Easy-to-use APIs for Web-service clients. You can read more here: http://java.sun.com/developer/technicalArticles/J2SE/jax_ws_2/.
JDBC 4.0 Support and an all-Java JDBC database included in the JDK. It’s Apache Derby (aka IBM Cloudscape) and is considered a fairly decent desktop database (especially given it’s pricetag): http://developers.sun.com/prodtech/javadb/
Swing continues to become more robust with new Desktop APIs (Swingworker, JTable sorting and filtering, GroupLayout just to name a few):
Here’s some screenshots of the new Swing Desktop in action: http://www.ensode.net/java_swing_mustang_screenshots_gtk.html
Monitoring and Management APIs with tools that attach on demand:
And the new JConsole is sweet looking too:
There’s way more, too! This release is a huge step foward and you can download it here : http://java.sun.com/javase/