Latest version of io.vertx:vertx-sync
https://javadoc.io/doc/io.vertx/vertx-sync
Current version 4.5.9
https://javadoc.io/doc/io.vertx/vertx-sync/4.5.9
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.vertx/vertx-sync/4.5.9/package-list