4.0.0 vertx-and-rxjava vertx-and-rxjava com.baeldung parent-modules 1.0.0-SNAPSHOT io.vertx vertx-rx-java2 ${vertx.version} io.vertx vertx-core ${vertx.version} io.vertx vertx-unit ${vertx.version} test org.apache.maven.plugins maven-compiler-plugin ${maven-compiler-plugin.version} ${java.version} ${java.version} 3.5.0.Beta1 1.2.3