[1.16.5] Need help getting ip and nickname

[aestivus]

I just recently started trying to write mods in Forge and now I can not find anywhere how to find out the nickname of a player and the server on which he plays

[Hipposgrumm]

A. Why are you getting Usernames and Server Addresses

B. 1.16.5 is no longer supported here. We only support 1.18.x and 1.19.x (one of which may be soon discontinued in favor of 1.20).