GlassFish 4 is under development now and will be released along with Java EE 7 in a few months. We need your help in testing the nightly and promoted builds of GlassFish. This is an opportunity to significantly influence the quality of GlassFish as well as to provide early feedback on stability, functionality, and usability through testing early builds.
The complete list of features and the lightweight process to join FishCAT is explained here.
Any amount of testing is helpful. It can be anywhere from 1 hour/week to as much time as you can spare. You can help test installation, docs, new functionality, running your existing applications on the latest build, or any thing else that would make you successful on GlassFish in the near future. Bugs filed by FishCAT participants will be evaluated ahead of other bugs. And there is a potential to be highlighted on glassfish.org, during the official Java EE launch and elsewhere.
26 people have already signed up and 35 bugs have been filed so far.
You know your voice is important to us, so please do make yourself heard.
Reza Rahman | Java EE/GlassFish Evangelist
All views voiced are my own, not necessarily Oracle's.