Minimwatch 2, Java and Gnome TopiconsPlus

[nickc]

Thanks for getting me on the right track, Simon.

It turns out that "update-alternatives" may be viable only on Debian and Ubuntu; I got a "command not found".

For the benefit of others, on Manjaro and ArchLinux, the command to use is "archlinux-java". So to find the current default version of java in use on the system it's: "archlinux-java status". Switching between versions (and much else) is covered very well here.