Latest version of io.vertx:vertx-mqtt
https://javadoc.io/doc/io.vertx/vertx-mqtt
Current version 3.9.5
https://javadoc.io/doc/io.vertx/vertx-mqtt/3.9.5
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.vertx/vertx-mqtt/3.9.5/package-list