Starting by executing ./VASSAL.sh
~/VASSAL $ java -version
openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)
~/VASSAL $ cat ~/.VASSAL/errorLog
2020-03-25 11:36:32,618 [0-main] INFO VASSAL.launch.StartUp - Starting
2020-03-25 11:36:32,621 [0-main] INFO VASSAL.launch.StartUp - OS Linux 5.5.10-200.fc31.x86_64
2020-03-25 11:36:32,621 [0-main] INFO VASSAL.launch.StartUp - Java version 1.8.0_242
2020-03-25 11:36:32,621 [0-main] INFO VASSAL.launch.StartUp - VASSAL version 3.2.17
2020-03-25 11:36:32,680 [0-AWT-EventQueue-0] INFO VASSAL.launch.ModuleManager - Manager
2020-03-25 11:36:32,695 [0-AWT-EventQueue-0] ERROR VASSAL.tools.ErrorDialog -
java.lang.ExceptionInInitializerError: null
at VASSAL.launch.ModuleManager.launch(ModuleManager.java:455) ~[Vengine.jar:na]
at VASSAL.launch.ModuleManager$2.run(ModuleManager.java:342) ~[Vengine.jar:na]
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) ~[na:1.8.0_242]
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) ~[na:1.8.0_242]
at java.awt.EventQueue.access$500(EventQueue.java:97) ~[na:1.8.0_242]
at java.awt.EventQueue$3.run(EventQueue.java:709) ~[na:1.8.0_242]
at java.awt.EventQueue$3.run(EventQueue.java:703) ~[na:1.8.0_242]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_242]
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74) ~[na:1.8.0_242]
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) ~[na:1.8.0_242]
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205) [na:1.8.0_242]
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) [na:1.8.0_242]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) [na:1.8.0_242]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) [na:1.8.0_242]
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [na:1.8.0_242]
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) [na:1.8.0_242]
Caused by: java.awt.HeadlessException: null
at java.awt.GraphicsEnvironment.checkHeadless(GraphicsEnvironment.java:204) ~[na:1.8.0_242]
at java.awt.Window.<init>(Window.java:536) ~[na:1.8.0_242]
at java.awt.Frame.<init>(Frame.java:420) ~[na:1.8.0_242]
at java.awt.Frame.<init>(Frame.java:385) ~[na:1.8.0_242]
at javax.swing.JFrame.<init>(JFrame.java:189) ~[na:1.8.0_242]
at VASSAL.launch.ModuleManagerWindow.<init>(ModuleManagerWindow.java:180) ~[Vengine.jar:na]
at VASSAL.launch.ModuleManagerWindow.<clinit>(ModuleManagerWindow.java:178) ~[Vengine.jar:na]
... 16 common frames omitted
OS: Fedora 31
Processor: Intel® Core™ i7-8550U CPU
Graphics: Intel® UHD Graphics 620