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JRuby, an implementation of Ruby on the JVM

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[IR] BacktickString operand -> BacktickInstr instruction

* This should have been an instruction from the beginning.
latest commit 23e3c30330
subbuss subbuss authored April 16, 2014
Octocat-spinner-32 .externalToolBuilders Tweaked Eclipse settings January 20, 2010
Octocat-spinner-32 .settings No one *seems* to be using Eclipse, but we shold be consistent [ci skip] June 23, 2013
Octocat-spinner-32 bench [Truffle] Remove old version of rbx from report. April 15, 2014
Octocat-spinner-32 bin Merge remote-tracking branch 'origin/jruby-1_7' April 07, 2014
Octocat-spinner-32 core [IR] BacktickString operand -> BacktickInstr instruction April 16, 2014
Octocat-spinner-32 docs Merge April 16, 2014
Octocat-spinner-32 ext use explicit snapshot repo for gems - somehow the gem-maven-plugin in… April 08, 2014
Octocat-spinner-32 install Remove some remaining version-switching nuggets. October 05, 2013
Octocat-spinner-32 ivy Bump up findbugs memory. July 17, 2012
Octocat-spinner-32 lib switch over to use SNAPSHOT version but keep final_names without SNAP… April 08, 2014
Octocat-spinner-32 maven Merge April 16, 2014
Octocat-spinner-32 rakelib updated and added more maven tasks April 02, 2014
Octocat-spinner-32 samples Revert "Remove FFI" November 22, 2013
Octocat-spinner-32 spec Merge April 16, 2014
Octocat-spinner-32 src Merge branch 'better_nailgun_server_error' February 26, 2014
Octocat-spinner-32 test Merge April 16, 2014
Octocat-spinner-32 tool [Truffle] Update to 0.2. March 27, 2014
Octocat-spinner-32 .classpath * Updated config for Eclipse IDE October 14, 2013
Octocat-spinner-32 .gitattributes *.bash files are text files June 26, 2013
Octocat-spinner-32 .gitignore [Truffle] Fix Mandelbrot benchmark translation to C and Java. April 14, 2014
Octocat-spinner-32 .project Switch to a new concurrency-friendly inst var table impl. January 06, 2013
Octocat-spinner-32 .travis.yml Merge remote-tracking branch 'origin/jruby-1_7' February 21, 2014
Octocat-spinner-32 some more notes on hacking the build [skip ci] April 02, 2014
Octocat-spinner-32 COPYING Happy New Year! January 01, 2014
Octocat-spinner-32 LEGAL Adding back LEGAL (for Ola) December 06, 2007
Octocat-spinner-32 LICENSE.RUBY Add license text for ruby licensed modules March 19, 2005
Octocat-spinner-32 Remove notes on junit.jar November 09, 2013
Octocat-spinner-32 Rakefile Better pattern to filter out org.jruby sources from Rake output. July 22, 2013
Octocat-spinner-32 VERSION switch over to use SNAPSHOT version but keep final_names without SNAP… April 08, 2014
Octocat-spinner-32 Update reported Ruby version to 2.1.2. March 19, 2014
Octocat-spinner-32 findbugs.xml Ignore intentional String equality checking in RubyModule in FindBugs. June 01, 2010
Octocat-spinner-32 jruby.bnd.template JRUBY-2741: OSGify jruby.jar in the release jruby distribution (patch… August 11, 2008
Octocat-spinner-32 lifecycle-mapping-metadata.xml * Updated config for Eclipse IDE October 14, 2013
Octocat-spinner-32 pom.rb Merge April 16, 2014
Octocat-spinner-32 pom.xml Merge April 16, 2014

JRuby - A Java implementation of the Ruby language

Master: Build Status 1.7 branch: 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.


JRuby 1.7.x requires Java 6 or greater.


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.


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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