Got user… Oh my god!
What a great box. Thanks @qtc for this! ^^
That box forced me out of my comfort zone completely…
For all those who are having trouble editing the jar … I highly recommend recaf+jd-eclipse. Having modified the jar with recaf, open it in the eclipse with JD-Eclipse and run it. This will run like a charm. Have no idea if this is the best approach, but it works for me. LOL