Latest version of org.codehaus.groovy:groovy-dateutil
https://javadoc.io/doc/org.codehaus.groovy/groovy-dateutil
Current version 2.5.15
https://javadoc.io/doc/org.codehaus.groovy/groovy-dateutil/2.5.15
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.codehaus.groovy/groovy-dateutil/2.5.15/package-list