Note: JRuby's mailing lists will soon move to our Kenai.com project. For now, follow the instructions below. We will announce and auto-migrate everyone to the new lists when the time comes.
The JRuby community uses several mailing lists to discuss issues, ask for help, and follow JRuby development:
To join one or more of the JRuby mailing lists:
Nabble also has a web archive of both the jruby-dev and jruby-user email lists and has an excellent interface for searching the lists.
There is a mirror of the jruby-user list at Google groups.