Latest version of io.vertx:vertx-mqtt
https://javadoc.io/doc/io.vertx/vertx-mqtt
Current version 3.6.0.CR1
https://javadoc.io/doc/io.vertx/vertx-mqtt/3.6.0.CR1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.vertx/vertx-mqtt/3.6.0.CR1/package-list