ADDITIONAL SYSTEM INFORMATION :
Ubuntu Desktop 20.04.1 LTS, AdoptOpenJDK 15.0.1

A DESCRIPTION OF THE PROBLEM :
The launcher created by jpackage for linux is valid but if you click the shortcut on Ubuntu the app is started but without the icon and it has the name "java" instat of the app name.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Download DEB https://github.com/lanthale/PhotoSlide/releases/download/v0.3.5/photoslide_1.0.0-1_amd64.deb
- Run "sudo dpkg -i photoslide_1.0.0-1_amd64.deb"
- Click on the shortcut

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Clicking the shortcut on Ubuntu is starting the app (red dot under the app icon).
ACTUAL -
Clicking on the shurtcut on Ubuntu is starting a new app without an icon with the name "java". This happens also if started the launcher from the terminal in /opt/PhotoSlide/bin

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https://github.com/lanthale/PhotoSlide
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CUSTOMER SUBMITTED WORKAROUND :
No workaround available

FREQUENCY : always