jRuby Using OpenSAML from JRuby Rails may not be the right tool for every job, but combined with the huge ecosystem of mature Java libraries, it can be a powerful tool.
Web Apps My Experiences with Ruby off Rails Don't assume that Ruby is only useful for making websites with Ruby on Rails, because I've been using it for years without shipping a Rails app.
Web Apps Rake Assets Precompile with JRuby Complete A quick work-around to get rake assets:precompile to work when using the jruby-complete.jar.
jRuby Using Bundler with JRuby Complete How to set up a JRuby project using the jruby-complete.jar using Bundler to manage gem dependencies.
jRuby Experimenting with Clojure’s PersistentHashMap in JRuby I benchmarked some tests run in JRuby that compare the Hamsterdam library using Hamster's immutable Hashes vs Clojure's PeristentHashMap, plus some gotchas.
Ruby Making Refs in Ruby Using Celluloid Actors An example of using Celluloid Actors to provide a poor man's Ref (Clojure-like) around an immutable data structure in JRuby to protect shared state.
Software Science FFI: Foreign Function Interfaces for Fun & Industry An FFI wrapper is much easier to write and maintain than a C extension, more portable across platforms and languages, and easier for users to install.
jRuby JRuby and vlcj – A Simple Full-Screen Media Player A simple JRuby script showing how to use the vlcj library to playback video full screen on a Linux machine.
jRuby JrSerialPort: Connect to a Serial Port in JRuby via RXTX Simple but effective JRuby code that simplifies the use of RXTX for basic serial port communications, with sample terminal.
jRuby Preventing JRuby Concurrency Errors with Hamster How using Hamster's efficient, immutable, thread-safe collections can prevent ConcurrencyError exceptions in JRuby.
jRuby Migrating Your JRuby Rails App Using warbler-exec Using warbler-exec, we can use the .war file itself to run the migrations without needing to transfer another copy of the rails app for this purpose.
Ruby Pry Yourself Away from IRB Pry features syntax highlighting, a flexible plugin architecture, runtime invocation and source and documentation browsing.
