FRD doesn't start - Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError

I don't remember what changes I've made since the FRD was working, but now I get this exception everytime I try to run it.

Language: Java
Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError
	at org.jdesktop.application.ResourceManager.createResourceMap(ResourceManager.java:443)
	at org.jdesktop.application.ResourceManager.createResourceMapChain(ResourceManager.java:139)
	at org.jdesktop.application.ResourceManager.createResourceMapChain(ResourceManager.java:138)
	at org.jdesktop.application.ResourceManager.createResourceMapChain(ResourceManager.java:138)
	at org.jdesktop.application.ResourceManager.getApplicationResourceMap(ResourceManager.java:158)
	at org.jdesktop.application.ResourceManager.getResourceMap(ResourceManager.java:293)
	at org.jdesktop.application.ApplicationContext.getResourceMap(ApplicationContext.java:206)
	at org.jdesktop.application.Application.create(Application.java:241)
	at org.jdesktop.application.Application$1.run(Application.java:179)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:647)
	at java.awt.EventQueue.access$000(EventQueue.java:96)
	at java.awt.EventQueue$1.run(EventQueue.java:608)
	at java.awt.EventQueue$1.run(EventQueue.java:606)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:617)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Caused by: java.awt.HeadlessException
	at sun.awt.HeadlessToolkit.getMenuShortcutKeyMask(HeadlessToolkit.java:231)
	at org.jdesktop.application.ResourceMap$KeyStrokeStringConverter.<init>(ResourceMap.java:1512)
	at org.jdesktop.application.ResourceMap.<clinit>(ResourceMap.java:1354)
	... 23 more

Odpovím si sám. FRD nefunguje s OpenJDK

It is still valid even with OpenJDK 11 that FRD does not work properly on it.
It partially works on Oracle JDK13 with various errors (for example plugins update does not work):
https://www.oracle.com/technetwork/java/javase/downloads/jdk13-downloads-5672538.html
...but I consider it as non-working for me.

Finally I have been able to get it up and running now on Oracle JDK 8:
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html