A batteries included version of processing in ruby targetting jdk11+.

A basic proxy/delegate framework for Ruby that will allow you to wrap any object with a proxy instance. For more information about the Proxy and Delegate patterns, check out http://en.wikipedia.org/wiki/Proxy_pattern and http://en.wikipedia.org/wiki/Delegation_pattern respectively.

Support for non-gem package releases for JRuby (pre-alpha!).

Library for Mapping Ruby Classes has Hibernate classes

From zero to search in the flash of a gem.

EventMachine implements a fast, single-threaded engine for arbitrary network communications. It's extremely easy to use in Ruby. EventMachine wraps all interactions with IP sockets, allowing programs to concentrate on the implementation of network protocols. It can be used to create both network ...

TK

TorqueBox Capistrano Support

wrapper for the twitter api on JRuby

VersatileRJS: Enables RJS with Rails(3.1 or higher) and jQuery.