Latest version of org.rrd4j:rrd4j
https://javadoc.io/doc/org.rrd4j/rrd4j
Current version 3.7
https://javadoc.io/doc/org.rrd4j/rrd4j/3.7
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.rrd4j/rrd4j/3.7/package-list