jar build should be compatible with openjdk 1.8
In some distributions (Fedora 33 for example), the distributed atk-wrapper jar file is compiled with jdk 11. That breaks any java app that should use it on openjdk 1.8:
An error occurred: org/GNOME/Accessibility/AtkWrapper has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0