Latest version of org.opt4j:opt4j-core
https://javadoc.io/doc/org.opt4j/opt4j-core
Current version 3.1
https://javadoc.io/doc/org.opt4j/opt4j-core/3.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.opt4j/opt4j-core/3.1/package-list