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JRuby - A Java implementation of the Ruby language
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 contributions
from the community.
Project Contact: Thomas E Enebo <>
JRuby also uses code generously shared by the creator of the Ruby language,
Yukihiro Matsumoto <>.
== About
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.
== Run
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
You will need:
* JDK 1.5 or greater
* Apache Ant ( 1.7 or greater.
To compile, just type:
This will create a jruby.jar file in the projects 'lib' directory.
== Testing
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 'docs/README.test' for more information.
== More Information
Visit for more information.
== License
Read the COPYING file.