I'm new to work in software developing by myself and I'm not sure what is the correct way to handle licenses, so far I'm working on a java project using maven (google json simple and junit pugins).
Maven and its plugins are under Apache2 license, as I'm nor editing java or anything like that from what I have read theres no need to include any license from it and my own code would go under GPL3.
As far as I have seen the license of the project go usually inside a "Lincense.txt", that's where I put the GPL3 but I'm unsure of the correct way to handle the Apache2 licenses.
Edit: making the question more clear.
I have maven and some plugins for it under apache2 license, where should I put the apache2 license and what clarifications should I add?