trying to compile to jar

[CatGuy1300]

Hello, I am trying to compile the project to jar so I can install it to elastic version 8, but I can't find the correct gradle and java sdk versions to use.
I also need to know the correct libraries versions for:
elasticsearch
lucine
log4j
junit

(Which are used in the build.gradle file).

Also is there anything else I am missing? (I am not experienced on compiling java)