[SgtMartian]

I realized on the car ride home from robotics (and this post) that java 8 wasn't installed.

I installed it near the end of the night because eclipse wasn't working all of a sudden (really not sure what happened to java 8 overall).

But by that time I had already, in a last-ditch effort, uninstalled the java installation tool, and was going to reinstall it- and that brings us to the current situation, where I don't know how to get the java installation tool back.