JRuby is the effort to recreate the Ruby (http://www.ruby-lang.org) interpreter in Java.
'org.jruby:jruby-core:9.0.0.0.rc2'
<dependency>
<groupId>org.jruby</groupId>
<artifactId>jruby-core</artifactId>
<version>9.0.0.0.rc2</version>
</dependency>
<dependency org="org.jruby" name="jruby-core" rev="9.0.0.0.rc2"/>
"org.jruby", "jruby-core", "9.0.0.0.rc2"