A couple of weeks ago I upgraded to Beowulf and I see that it comes with
openjdk 11. I have an app that needs java 8 so I was planning to have
both installed, maybe use the script described here:

https://www.linuxuprising.com/2019/02/install-any-oracle-java-jdk-version-in.html

Any issues I need to be aware of? (Beside the obvious Don't use the
same installation dir!)

Thanks
Steve