Latest version of org.shredzone.flattr4j:flattr4j-core
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core
Current version 2.1
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core/2.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/org.shredzone.flattr4j/flattr4j-core/2.1/package-list