[PLUG] Any Java experts here?

[Rich Shepard]

I have been using JabRef as my scientific bibliographic reference database
for years (on my 32-bit desktop running JabRef-3.8.2.jar).

Now, on my new 64-bit desktop I want to run 4.3.1 but it fails:

@baetis /opt/JabRef]$ java -jar JabRef-4.3.1.jar Error: Could not find or load 
main class org.jabref.JabRefMain
Caused by: java.lang.NoClassDefFoundError: javafx/application/Application

Installed on that host are adoptopenjdk-11.0.3+7-x86_64-1_SBo and
openjdk8-8u212-x86_64-1_SBo

Has anyone insights on the source of this problem? If not, I'll post on the
mail list.

Regards,

Rich