The JPacktool Agilhard-OSS Open-Source Project is intended to be part of a solution to replace the use of the Java Webstart technology which has been discontinued in newer JDK versions.
It features the new JPacktool Maven Plugin.
The JPacktool Maven Plugin extends the Agilhard-OSS JLink-JPackager Maven plugin and is using it as a Java Library.
This in turn is based on the Apache maven-jlink-plugin.
The JPacktool Maven Plugin enhances the jlink-jpackager-maven-plugin by adding special features for projects using update4j.
Have a look at jpacktool-maven-plugin/README.md or the JPacktool Maven Plugin Documentation for more information.