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.externalToolBuilders Tweaked Eclipse settings
.idea update intellij files reflecting new pom
.settings No one *seems* to be using Eclipse, but we shold be consistent [ci skip]
antlib try to fix travis issue - ensure the default profile gets used
bench Switch to a new concurrency-friendly inst var table impl.
bin Correct alignment of line numbers
cext/src add typecasting to RTEST macro
core Merged PR#988 with some mild style tweaks
docs Fix typo in testing documentation
ext Remove redundant escape calls in grammar
gems moved bouncy castle gem and use ruby-maven for building it
install Move generated sources (src_gen) under build dir.
ivy Bump up findbugs memory.
lib/ruby Fix Fiber#transfer in new impl.
maven use as basedir for archives [skip ci]
rakelib Actually use dotted format, not specdoc format.
samples LoadService.lockAndRequire() was renamed to LoadService.require() in 8…
spec Remove JRUBY-5811 regression spec
test Fix Fiber#transfer in new impl.
tool Make it simpler to run this without cd'ing
.classpath Remove reminisce of build_lib from eclipse .classpath
.gitattributes *.bash files are text files
.gitignore no dependency-reduced-pom.xml on git
.project Switch to a new concurrency-friendly inst var table impl.
.travis.yml Add IR specs to Travis added some note about maven version
COPYING Add the complete text of the Eclipse Public License
LEGAL Adding back LEGAL (for Ola)
LICENSE.RUBY Add license text for ruby licensed modules
Mavenfile Update to joda-time 2.3 (and tzdata 2013d) Maven site can now be published to github pages
Rakefile Better pattern to filter out org.jruby sources from Rake output.
build.xml remove native check since it has no more references - fixes also the … Update to jruby-launcher 1.0.19.
findbugs.xml Ignore intentional String equality checking in RubyModule in FindBugs.
jruby.bnd.template JRUBY-2741: OSGify jruby.jar in the release jruby distribution (patch…
pom.xml added repo profile which triggers a deploy into file repostiory in $b…

JRuby - A Java implementation of the Ruby language

Build Status

Authors: Stefan Matthias Aust, Anders Bengtsson, Geert Bevin, Piergiuliano Bossi, Johannes Brodwall, Rocky Burt, Paul Butcher, Benoit Cerrina, Wyss Clemens, David Corbin, Thomas E Enebo, Robert Feldt, Russ Freeman, Chad Fowler, Joey Gibson, Kiel Hodges, Xandy Johnson, Kelvin Liu, Alan Moore, Akinori Musha, Charles Nutter, Takashi Okamoto Jan Arne Petersen, Tobias Reif, David Saff, Ed Sinjiashvili, Daiki Ueno Matthias Veit, Jason Voegele, Sergey Yevtushenko, Robert Yokota, Ola Bini, Nick Sieger, Vladimir Sizikov, and many gracious contributors from the community.

Project Contact: Thomas E Enebo

JRuby also uses code generously shared by the creator of the Ruby language, Yukihiro Matsumoto


JRuby is the effort to recreate the Ruby ( interpreter in Java.

The Java version is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application. See the docs directory for more information.


bin/jruby rubyfile.rb

interprets the file rubyfile.rb.

If you checked out from the repository or downloaded the source distribution, see the next section to build JRuby first.

Compiling from source

See BUILDING for more information.


In order to run the unit tests, copy the build_lib/junit.jar file to either $ANT_HOME/lib/junit.jar or ~/.ant/lib/junit.jar.

See README.test for more information.

More Information

Visit for more information.

Visit for the Maven Site documentation.


Read the COPYING file.

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