Trying to edit Minecraft.java and not sure where to do that

[Idfk_man]

Im trying to be able to log into a Minecraft server while in my eclipse ide so I don't have to compile and run start Minecraft every time I want to test something and I found some code online but It says I have to edit mincraft.java and I am not sure where and how to access this file.

How could I edit Mincraft.java?

* In Minecraft.java replace these two lines:

*

* this.sessionService = (new YggdrasilAuthenticationService(gameConfig.userInfo.proxy, clientToken)).createMinecraftSessionService();

* this.session = gameConfig.userInfo.session;

*

* With this:

*

* MinecraftLogin login = new MinecraftLogin("[email protected]", "password123");

* this.sessionService = login.getSessionService();

* this.session = login.getSession();

 

here is the GitHub link for full code I am trying to use 

https://gist.github.com/Nicbo/2db069356d99250a4abd06ce20d7ca73

Edited December 12, 2022 by Idfk_man

[warjort]

That code is for minecraft 1.8 and hacking away minecraft's authentication is not something we support in this forum anyway.

If you want to login in a dev environment, you can use a mod like reauth.

https://www.curseforge.com/minecraft/mc-mods/reauth

Or if you don't trust that mod with your password, you can copy its code into a mod of your own.