jpackage vs %jpackage_script

[Didik Supriadi]

Now that `jpackage` ( i.e. located at 
%{_jvmdir}/java-17-openjdk/bin/jpackage ) is provided since java.version
> = 14, how will that affect the java packaging guidelines?

From this page [1], `jpackage` has the following features:

* Provide a custom icon
  * Install the application in a specific location
  * Specify JVM options and application arguments to be used when
    launching the application
  * Set file associations to launch the application when an associated
    file type is opened
  * Launch the application from a platform-specific menu group
  * Set up multiple launchers for the application

[1] 
https://docs.oracle.com/en/java/javase/14/jpackage/packaging-overview.html