What library does Mojang / Minecraft use for JSon?

[JaredBGreat]

Looking through the libraries from within Eclipse show the gson, but another post here mentioned org.json.simple.parser.JSONParser; I'm looking into using json files for extra configurations, but I don't want to write my own parser (defeats the point) and want to be sure whatever library I use will be one that is available with the game.  (I do not want to push them into a fat jar, which could have legal implications as well as file bloat and extra work for me, or worse, try to have them downloaded).

 

I've started with gson, and hope that's not a mistake.

 

So which does the game use and have conveniently available, Google gson?  or json.org?

Edited February 19, 2018 by JaredBGreat
Forgot a small detail

[larsgerrits]

Minecraft uses Gson to parse JSON files.