Wow. Okay, after I restored stuff from Time Machine, I used Spotlight again and found my Java Prefs!!! Thanks for the idea, Artie. I still can't find it via Apps, utilities, etc. Not sure why. But there it was and now my Grooveshark music works!
MacBook Pro - M2, Ventura 13.6 Safari Tech Prev 17.0 Safari 16.6 Firefox 116.0.2 iPhone 7 Version 15.8