JRuby, an implementation of Ruby on the JVM
All the Ruby benchmarks I could find
Gems needed to test JRuby+Truffle
Everything needed to build JRuby offline
Java-based codings helper classes for Joni and JRuby
ActiveRecord adapter using JDBC for JRuby. Please, support the project at BountySource's
One Ruby benchmarking interface to rule them all
org.jruby.util.ByteList byte container
Warbler chirpily constructs .war files of your Ruby applications.
JRuby's fork of Ruby, to maintain diffs against stdlib and extension libraries.
A deep benchmarking tool for Ruby
Rack for JRuby and Java appservers
Java port of Oniguruma regexp library
A collection of examples to help you get the most out of JRuby
a couple of main methods for embedded (j)ruby inside a jar/war file