Latest version of org.jruby:jruby-core
https://javadoc.io/doc/org.jruby/jruby-core
Current version 9.0.0.0.rc2
https://javadoc.io/doc/org.jruby/jruby-core/9.0.0.0.rc2
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.jruby/jruby-core/9.0.0.0.rc2/package-list