I'm writing a Java EE 8 book, all code samples freely available on GitHub

I'm writing a Java EE book to be published at the end of the year by Packt Publishing: https://www.amazon.com/Java-EE-8-Application-Development/dp/1788293673

I'm uploading all code samples to GitHub, feel free to pull them and use them as you wish, no need to buy the book: https://github.com/dheffelfinger/Java-EE-8-Application-Development-Code-Samples

Usual disclaimers apply: absolutely no guarantees, code may or may not work, you may not sue me, etc.