Java EE is the main tool used over the last few decades to develop Information Technology (IT) applications. Java EE has evolved during these years according to the needs of large customers. Large companies such as Oracle, Redhat, and IBM have invested in Java EE by improving it over time, providing feedback and workflows for the JCP specifications, making it more suitable for ever stringent requests from around the world. The Java Community Process (JCP) has favored Java EE, thanks to the contribution
of not only these companies but of anyone who is interested in the now-consonant open source philosophy. Many people and companies contribute to open source by providing their expertise and contributing to the design and development of well-known products in information technology. The development of important open source products has also helped improve Java EE. Implementations of Java EE specifics come mainly from the Apache and JBoss communities. JBoss initially emerged as a product implementing Java EE and later became a true open source community; it was the first community to invest in Java EE. WildFly is the evolution of JBoss, an application server that implements Java EE 7 specifications. In this book, we will show all the opportunities that this product can provide customers by focusing on Java EE implementations and some extensions that make WildFly a great alternative to proprietary application servers.