Quote Originally Posted by Michael Gilligan View Post
Edit: I’ve just tried a little ‘self-help’ and found this:
https://apple.stackexchange.com/ques...vents-shutdown
Unfortunately it is beyond my comprehension.
As far as I can see, that's just talking about the issue and other ways to force quit the application.

I'd try uninstalling and reinstalling java on your Mac.

Failing that, you could try running Linux in a virtual machine, and download Java onto that. I'm a fan of Oracle's Virtualbox.