“Joe”:http://bostonsteamer.livejournal.com/ points me at this “JVM languages shoot-out”:http://opal.cabochon.com/~stevey/sokoban/ comparing the author’s experience with different dynamic languages that run on the JVM.

As of Beta 10, the author had some “fairly painful experiences”:http://opal.cabochon.com/~stevey/sokoban/docs/article-groovy.html with Groovy unimplemented features, bugs, and inadequate documentation.

As of JSR-03, I still find issues with respect to unimpemented features or bugs and the documentation. The release version is not expected until February 2006.

All told, JRuby is looking better by the moment.

Update: Laurel has a JRuby version of the controller up and running; that was easy!