Article: The Quick Java Switch and Fix

Switching Java to the Sun Version - openSUSE installs the ‘openjdk’ version of Java which may not work 100% on some sites. We just need to switch to the ‘sun’ version. Open Software Management and search for ‘java’ (without the quotes).

The following image is designed to assist. It shows the openjdk versions un-installed and the sun versions installed. (Note: It’s 2 images - one overlayed on the other).
It’s also the KDE QT UI. Gnome looks different but the principle is the same.