Latest version of org.jruby:jruby
https://javadoc.io/doc/org.jruby/jruby
Current version 1.5.5
https://javadoc.io/doc/org.jruby/jruby/1.5.5
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.jruby/jruby/1.5.5/package-list