As a demo some distributions are built using the github actions. If you go to the actions section and click on the latest run and scroll to the bottom of the page where the "Artifacts" are, you should be able to download them from there.

This setup requires that you have a matching maven toolchain file that points to the correct jdk needed.

• Right-click on YourApplication.app (in the Applications Folder)...Show Package Contents.
• In the MacOS folder, right-click on the Terminal icon showing your app's name. Open with Terminal....
• This will show you any errors fired during the launch sequence. Source

To launch this from eclipse, you need to add the following to the vm args

--module-path ${project_classpath:hello-world-javafx-jpackage} --add-modules javafx.controls

More possible ways of doing this are https://stackoverflow.com/a/55300492/2055199

I found https://github.com/sualeh/build-jpackage very useful