[WARNING] vertx-web-3.5.0.jar, vertx-web-common-3.5.0.jar define 2 overlapping classes:
[WARNING] - io.vertx.groovy.ext.web.VertxExtensionModule
[WARNING] - io.vertx.ext.web.package-info
[WARNING] maven-shade-plugin has detected that some class files are
[WARNING] present in two or more JARs. When this happens, only one
[WARNING] single version of the class is copied to the uber jar.
[WARNING] Usually this is not harmful and you can skip these warnings,
[WARNING] otherwise try to manually exclude artifacts based on
[WARNING] mvn dependency:tree -Ddetail=true and the above output.
[WARNING] See http://maven.apache.org/plugins/maven-shade-plugin/