JRuby, an implementation of Ruby on the JVM

minitest provides a complete suite of testing facilities supporting TDD, BDD, and benchmarking.

Rack for JRuby and Java appservers

Provides lexical scanning operations on a String.

A libyaml wrapper for Ruby

A modular Ruby web server interface.

Pseudo `IO` class from/to `String`.

Ruby GetText, but 12x faster + 530x less garbage + simple + clean namespace + threadsafe + extendable + multiple backends

Manticore is a JRuby HTTP client built on the Apache HttpClient 4.x components

JRuby library for working with Apache POI

Logstash Integration Plugin for JDBC, including Logstash Input and Filter Plugins

manage jar dependencies for ruby gems

Java port of https://github.com/m31coding/fuzzy-search/

A ruby implementation of the RFC 7519 OAuth JSON Web Token (JWT) standard.

retry randomly failing rspec example

Assert utility for ruby

JSON implementation for Ruby

Library packaging and distribution for Ruby.

Java port of Oniguruma regexp library

return the sourcecode for a method

Use signal to show stacktrace of a Ruby process without restarting it

Actor-based concurrent object framework for Ruby

logstash - logs/event transport, processing, management, search.

Nokogiri (鋸) is an HTML, XML, SAX, and Reader parser with XPath and CSS selector support.

A Ruby/Rack web server built for concurrency

Logstash's Dead Letter Queue Input