GitHub just announced their new commercial product GitHub:Firewall Install (or GitHub:FI):
GitHub:FI is a version of GitHub that can be installed within your own private network. This product is ideal for your company if you wish to enjoy the benefits of GitHub, but are unable to do so because of corporate restrictions or laws that prevent you from hosting your code with a third-party service.
GitHub is written in Ruby - and GitHub:FI is shipped and installed with JRuby:
The primary difference is that the FI source code is compiled and run with JRuby inside of a Jetty container instead of our normal Ruby/Mongrel stack. Beyond that, FI looks and acts just like the site you've come to know and love.
While GitHub:FI uses Jetty, another popular Java app server has entered the JRuby market: TorqueBox which is built on JBoss AS:
TorqueBox is a new kind of Ruby application platform that integrates popular technologies such as Ruby-on-Rails, while extending the footprint of Ruby applications to include support for Job Scheduling, Task Queues, SOAP Handling, and Telecom.
The Telecom support consists of VoIP features which allow to handle and send SIP messages. The SIP features build on Mobicents.
For a quick look at what makes TorqueBox tick: the source code is hosted at GitHub.
It's not just software that gets JRuby support: EngineYard will start to offer JRuby as a runtime option:
The Engine Yard decision to provide JRuby support stemmed from requests from Java-based customers and partners that wanted to leverage existing libraries and infrastructures but also deploy their applications to a Rails cloud.
A beta of the JRuby support will be available in July; attendees of JavaOne can also pop by EngineYard's booth for more infos.
Finally: Charles Nutter posted a handy list JavaOne sessions that either feature JRuby or other dynamic JVM languages.