On bionic, you will also have to downgrade libopenjfx-jni ``` sudo apt install openjfx=8u161-b12-1ubuntu2 libopenjfx-java=8u161-b12-1ubuntu2 libopenjfx-jni=8u161-b12-1ubuntu2 ```
On bionic, you will also have to downgrade libopenjfx-jni 8u161-b12- 1ubuntu2 libopenjfx- java=8u161- b12-1ubuntu2 libopenjfx- jni=8u161- b12-1ubuntu2
```
sudo apt install openjfx=
```