Latest version of org.codehaus.groovy:groovy-ant
https://javadoc.io/doc/org.codehaus.groovy/groovy-ant
Current version 2.2.0-rc-1
https://javadoc.io/doc/org.codehaus.groovy/groovy-ant/2.2.0-rc-1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.codehaus.groovy/groovy-ant/2.2.0-rc-1/package-list