4.0.0 io.vertx vertx-parent 3.0.0-dev_preview1 vertx-service-factory 3.0.0-dev_preview1 Vert.x Service Factory 3.0.0-dev_preview1 io.vertx vertx-core ${vertx.version} junit junit 4.11 test io.vertx vertx-core ${vertx.version} test-jar test