I have moved along, but the ultimate issue remains:

The issue with jconsole is that it does not work when forwarding X sessions to my work-provided Mac. I can't get to the server from a home machine, so idk. I could, in theory, set up a VM. I could also try a different X provider other than XQuartz.

I also have access to a work Windows machine. I haven't tried it.

I guess I will need to spin up another VM in ovirt, so I could forward ssh sessions within ovirt on Linux and see if it is a Mac-specific issue.

I am happy for any recommendations