I have gathered some of the common code I have written lately and am making it available here.
The software is provided “AS IS”, without warranty of any kindLatest version available at: https://github.com/briannesbitt/nesbot-commons/downloads
Dependencies for “Bouncy Castle” and JUnit are available here: https://github.com/briannesbitt/nesbot-commons/tree/master/src/main/resources