How did you get NMS sources decompiled?

[TomJuri]

Hey, I know this repository is unmaintained, but if you read this, I'd love to know how you decompiled the NMS sources that do not come with Spigot BuildTools. I tried to decompile them with fernflower from a mapped spigot jar though it just gave me endless errors when I imported them into my IDE. Thanks, Tom

[Attano]

Wow, this brings back memories. It's most likely not working for you because it's been 8 years since I've done this. Java version changed, Mojang's obfuscation changed, probably some other stuff changed. 2014 was easier than 2022.