Super22 creates a simple Desktop application from Java Web Applicaton. The input is a war file. The build with the Ant file "build-super22.xml and a given property file will create a executable jar file. When the jar file is run it will extract a version of jetty-runner and the war file and start jetty-runner with this war file as argument. So build the jar file like so ant -f build-super22.xml -propertyfile super22-props.properties In this case the contents of the property file are: >>>>> targetjar=some-application.jar warfile=some-webapp.war runner=jetty-runner-9.4.9.v20180320.jar port=7777 <<<<<< The build will create the jar file some-application.jar. When this jar file is run, the web application will be startet, listening on 127.0.0.1:7777. The system web browser will be startet and open the page http://localhost:7777. The Netbeans stuff is only used for editing.