How do I get Java FX running with OpenJDK 8 on Ubuntu 18.04.2 LTS?

Question

When trying to compile an JavaFX application in the environment:

java -version
openjdk version \"1.8.0_212\"
OpenJDK Runtime Environment (build 1.8.0_212-8u2         


        

Answer 1

The hint from

https://github.com/JabRef/help.jabref.org/issues/204

helped. The commands:

apt purge openjfx
apt install openjfx=8u161-b12-1ubuntu2 libopenjfx-jni=8u161-b12-1ubuntu2 libopenjfx-java=8u161-b12-1ubuntu2
apt-mark hold openjfx libopenjfx-jni libopenjfx-java

fixed the problem. Many thanks to https://github.com/Druidefix for this. (If you'd like to answer this yourself I'll happily delete my own answer ...)