For ExtraView 11.1 and all newer versions require a minimum Java of version JRE 8. If your system is running with any earlier version of Java, you must upgrade to this version.
For ExtraView 20.0, you may run Java 9 and above.
The following steps will install Java into the directory /1.8.0_xx. Adjust the path names to suit the version of Java you are installing.
cd
cp jre-8uxx-linux-x64.gz
cd
tar xzf jre-8uxx-linux-x64.gz
Java is now installed in the directory /jre1.8.0_xx