Fail to run release 0.6.3 on Ubuntu (Failed to load Glass factory class)

[ehoffman2]

I tried with java 17, 16 and 11, pretty much the same result

Ubuntu 20.04
OpenJDK 17, 16 and 11 tested

Edit: Also have installed openjfx

java -jar sassa-v0.6.3.jar 

java.lang.ClassNotFoundException: com.sun.glass.ui.gtk.GtkPlatformFactory
        at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
        at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
        at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
        at java.base/java.lang.Class.forName0(Native Method)
        at java.base/java.lang.Class.forName(Class.java:315)
        at com.sun.glass.ui.PlatformFactory.getPlatformFactory(PlatformFactory.java:42)
        at com.sun.glass.ui.Application.run(Application.java:144)
        at com.sun.javafx.tk.quantum.QuantumToolkit.startup(QuantumToolkit.java:258)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:269)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:158)
        at com.sun.javafx.application.LauncherImpl.startToolkit(LauncherImpl.java:658)
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:678)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
        at java.base/java.lang.Thread.run(Thread.java:829)
Failed to load Glass factory class
Exception in thread "main" java.lang.NullPointerException
        at com.sun.glass.ui.Application.run(Application.java:144)
        at com.sun.javafx.tk.quantum.QuantumToolkit.startup(QuantumToolkit.java:258)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:269)
        at com.sun.javafx.application.PlatformImpl.startup(PlatformImpl.java:158)
        at com.sun.javafx.application.LauncherImpl.startToolkit(LauncherImpl.java:658)
        at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:678)
        at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:195)
        at java.base/java.lang.Thread.run(Thread.java:829)

[ehoffman2]

Note, I was able to run sassa using the command:

java --module-path /usr/share/openjfx/lib/ --add-modules javafx.controls,javafx.fxml -jar sassa-v0.6.3.jar