Latest version of ehcache:ehcache
https://javadoc.io/doc/ehcache/ehcache
Current version 0.6
https://javadoc.io/doc/ehcache/ehcache/0.6
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/ehcache/ehcache/0.6/package-list