If you have so much java versions you just remove with the code below:
Please be carefull and know what you are doing with removing alla java versions:

then it will remove all java versions.
You can controll installed java versions with code below:
Code:
sudo dnf remove 'java-*'
Please be carefull and know what you are doing with removing alla java versions:

then it will remove all java versions.
You can controll installed java versions with code below:
Code:
rpm -qa | grep java