Web framework based on servlet 3.0

I was curious to know if anyone's aware whether any of the main web framework teams are working on incorporating the Servlet 3.0 specs into开发者_StackOverflow their stacks? AFAIK, they're all based on the 2.5 specs as of now. I think the 3.0 specs brings a lot of nice features in terms of ease of configuration and asynchronous request handling. I was especially interested in the server push capabilities.

any information about this?

thanks.

Sure, you can take a look at Spring 3.1 documentation :

http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/htmlsingle/spring-framework-reference.html#d0e1428

(Currently in Milestone 2).

Grails 2.0 is based on Servlet 3.0. Check out this link for asynchronous processing

For server push, it will be much easier to use something like Atmosphere than raw servlet 3.0 Api. Check out this for more detail.