pakiet javafx.fxml nie istnieje
sudo cp /usr/share/java/openjfx/lib/* /usr/lib/jvm/java-1.8.0-openjdk-amd64/lib
Expensive Elk
sudo cp /usr/share/java/openjfx/lib/* /usr/lib/jvm/java-1.8.0-openjdk-amd64/lib
sudo apt-get install openjdk-8-jre