This repository contains the source code which could be referred to:
This code and the accompanying materials are made available under the terms of the GPLv3 license. The GPL (V2 or V3) is a copyleft license that requires anyone who distributes code or a derivative work to make the source available under the same terms. V3 is similar to V2, but further restricts use in hardware that forbids software alterations (see LICENSE.txt).
https://gitlab.com/giuseppeurso-eu/java-utilities