GlassFish v3 Prelude is out today, and as I do for every GlassFish release, here is a list of cool features the official documentation/marketing might not talk about.

• Comet support: GlassFish now officially support AjaxPush/Comet technique via Grizzly Comet. And we have official documentation about it! And demo! And tutorials in French, Japanese, English, Spanish.
• Cometd/Bayeux Protocol support: The Bayeux Protocol is becoming a de-facto standard when you want to do Comet using DOJO.
• Improved Priority based request processing: Those rogues applications that affect overall performance are informed: we will isolate you if you don't perform as we want.
• Retain session data during redeployment: That one is just too cool. Redeploy your application without loosing your session data. Just can't leave without that as a developer!
• Official Apache mod_jk support: Finally! Apache/mod_jk is also a de-facto standard for most ISP. We are officially supporting it with no paint like before.
• Tomcat-style valves support : Deploy your Tomcat's Valve extension inside GlassFish.
• Jersey in GlassFish: Grizzly can REST, Jersey now in Prelude!
• Command line start up and deployment: Why wasting time using deployment command if you can just do: java -jar ${glassfish.home}/modules/glassfish.jar MyAppFolder
• Static WebServer: When Prelude starts, the Servlet/JSP Container is not started if no application are deployed. But you can still serve static pages via the Grizzly's Http Extension. No fluff!
• Powered By Grizzly: @JavaOne 2006 I've talked about a Grizzly based micro-kernel that could be extended on the fly using Maven artifact. That project got killed internally (to punish them I did Grizzly Comet instead :-)) but part of the original design ended up in v3 Prelude. Support for Grails (Groovy), Rails (Jruby), Admin Cli, Automatic installation of AdminGui Servlet/JSP Container, Static Web Server...all powered by the Grizzly extensions point! Technical details here!

Gigantic kudossss to Jerome who lead v3...that release was a tough one!!

technorati: grizzly glassfish v3 cometPrelude