Google Web Toolkit 1.5 offers support for Java 5
Google certainly wants to make the web a richer software environment and is therefore coming up with Google Web Toolkit (GWT) 1.5. It offers support for java 5. Programmers would be happy to use it for developing and debugging Java web applications and put them to use as optimized JavaScript. It would ensure better performance and productivity as it will be able to take care of common problems such as browser compatibility. It possesses abilities such as annotations, Java generics, auto boxing, enumerated types and variable parameter lists.
Google claims its compiler produces codes quickly with better performance which has been achieved as a result of better dead code elimination, deep inlining and improved static analysis.