What do you need?
jFed requires Java 13.
Oracle’s JDK and OpenJDK based alternatives are supported. Note that the Oracle JDK has some important licensing restrictions. OpenJDK releases receive updates only for 6 months. We advise to use Azul Java.
Older java versions (< 11) are not compatible with recent jFed versions. Java 11 and 12 might not work correctly with the openjfx 13 library jFed uses.
Verifying your Java installation
To verify your current java installation, open a terminal and execute the
java -version command.
Installing Azul Java
Debian / Ubuntu / Mint
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0xB1998361219BD9C9 sudo apt-add-repository 'deb http://repos.azulsystems.com/ubuntu stable main' sudo apt-get install zulu-13 sudo update-java-alternatives -s zulu-13-amd64
Open a terminal, and execute the following command:
sudo pacman -S jdk-openjdk
Note that when java 13 becomes available, the arch java 13 package will change name to “jdk13-openjdk”.
Alternative: Installing Java 13 manually
If you cannot install OpenJDK 13 using your systems package manager, you can manually install OpenJDK 13 (or Azul JDK). This is not recommended, as it probably does not integrate well with your linux distribution’s java.
Full instructions for OpenJDK can be found at the OpenJDK site