Any thoughts? I mean is it possible I deleted it? And if so, what should I do?
Looks like it worked as I can now see it in System Preferences.
However, how do I clear my cache?
I don't have Java installed, so don't recall the exact tab, but if you open that pref pane and look around in the settings there I know there is what that deletes all the cache.
Under System Preferences, in the Java Control Panel, the tabs are:
General
Update
Java
Security
Advanced