Latest version of org.jruby:jruby-core
https://javadoc.io/doc/org.jruby/jruby-core
Current version 9.4.8.0
https://javadoc.io/doc/org.jruby/jruby-core/9.4.8.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.jruby/jruby-core/9.4.8.0/package-list