Reminds me of that Simpsons ep

Wiggum: Well, your story is very compelling, Mr. Jackass, I mean, uh, Simpson. So, I’ll just type it up on my invisible typewriter!

Windows: "Oh, you encountered an error? Let me look that up in my imaginary 'database'"

You should probably consider using a luck message broker so your luck retreival endpoint can scale.

I'm sure Spring has a library for that.

I can imagine that feeling when your friend realized he couldn't undo his "experiment".

My motto is to never do something yourself that a computer can do better.

Being lazy really helps.

I'd suggest using local VCS (e.g. git; you can always rebase before pushing). I also use CrashPlan backup which takes incremental backups of my workspace to a local drive and periodically backs up to the cloud for catastrophic situations.

This is a lesson you should only learn once. Fix it now while you hate yourself a little. 😉