This is a variant of HelloFXML which tests a fix to the problem of Scala dependencies being incompatible with Java 9+. - the suffix _2.13 is treated as integral part of the library module name which results in a warning during the compilation, and then a failure in runtime when the app tries to access the library code.

Here you can read more about it: https://github.com/makingthematrix/scala-suffix

The app uses a small Scala library for event streams, wire-signals_2.13:0.3.1, to test that the fix works. Newer versions of wire-signals are already fixed on the library side, but 0.3.1 would crash the app if used with the fix. And the fix is just that scala-suffix-maven-plugin is added to the list of plugins and it modifies the library's jar file in the local Maven repository before the compilation, adding a line to its manifest: Automatic-Module-Name: wire-signals.

You can run the app on the desktop with:

mvn javafx:run

And then create and run a desktop native image:

mvn client:build client:run

If all works, create an Android APK and install it on a connected device with adb:

mvn -Pandroid client:build client:package
adb install <path to apk>