This cookbook is written for learning TomEE internals by server administrators and Java EE developers. Administrators will learn how to configure TomEE for using it in a production environment. Developers will learn how to create web applications using the Java Platform, Enterprise Edition 6 (Java EE 6) technologies provided by TomEE runtime and to deploy these enterprise applications into TomEE. Chapters of the book: Chapter 1: Introduction Chapter 2: Getting Started Chapter 3: TomEE Architecture Chapter 4: TomEE Web Server, Apache Tomcat Chapter 5: TomEE EJB Lite Server, Apache OpenEJB Chapter 6: Deployments in TomEE Chapter 7: JavaEE Technologies Used in TomEE Chapter 8: TomEE Security Chapter 9: JNDI Naming In TomEE Chapter 10: Transactions in TomEE Chapter 11: TomEE Clustering Features Chapter 12: TomEE WebSocket Protocol Support Chapter 13: TomEE GUI Chapter 14: Testing Techniques in TomEE Chapter 15: TomEE Embedded Usage Chapter 16: Useful References Chapter 17: ASF License"