I'm not from FileMaker but I agree with you on this. Several users, undoubtedly prompted by OS X promptings, have updated to Jave 8.x and found out later that FMS is not compatible. Luckily it's not difficult to uninstall Java and downgrade.
It's complex, complicated )-:
I'm afraid that java is no longer usable for 'industrial' applications. An industrial application is an app' that has to do one thing: Run... for a long time...
I used to do any XML stuff with Oxygen - now, it asks me to have a java-6 environment installed.. I dumped Oxygen and bought Xmplify, that serves my basic needs. Maybe I got not the very latest release (but it was one of the latest) - I don't care. (When I desperately needed Oxygen, I was on the field, no internet, I just forgot Oxygen after updating to Yosemite...)
A new OS every year, other software will be updated as well in other frequencies - means the every couple of months we got the same. sigh.
I really don't want to 'be' FileMaker - they are suffering from OSX updates, iOS updates, Win updates - and Java updates among others. IMHO it's impossible to maintain a software under those circumstances.
But to go back to thread: I would love to have a server administration that doesn't rely on any uncontrolled 3rd party software - even when it's a pure terminal app (at the moment we can't do every thing using the terminal). And yes - the latest software versions should work, a server IS an industrial application