This book is a comprehensive reference of the Apache Geronimo Application Server with easy-to-understand examples and sample applications. Different configuration items are available as self contained chapters that can be looked up independently of the other chapters so that readers can go straight to whatever part of Geronimo they want to configure. The book is packed with tips and tricks, based on the author's experience with Apache Geronimo in real-life projects. This book is intended for Java EE developers and server administrators who would like to use Geronimo for developing and deploying fully fledged Java EE 5 applications and freely distribute Geronimo with their solutions. Readers should be familiar with Java EE 5 concepts.