Java EE as a technology is an excellent choice for Microservices because it provides some off the shelf functionalities for implementing core requirements of communication, security, scalability, and so on. Each and every functionality from the Java EE specification can be plugged into the Microservice when needed, and dropped when it is no longer required. As there are many implementations of one specification available, support and security updates, as well as vendor neutrality for any Microservice, is ensured. There are many ways of building a Microservice with Java EE. In this introductory chapter, a minimalistic approach with Payara Micro, taking care of application runtime, is presented.

We are moving ahead with the assumption that the reader is aware of the basic usage of Maven. Though it is not a must to understand the concepts, it is recommended to go through the basics of Maven if you are new to it: https://maven.apache.org/.