This book shows how you can use the Java Message Service (JMS) to create robust, asynchronous, loosely-coupled Java applications. It covers both the fundamental and advanced features of the latest 1.02 API, in both the Point-to-Point and Publish/Subscribe messaging domains. With JMS provision becoming mandatory in the next generation of J2EE 1.3 application servers, this book will prepare you for building portable, messaging-enabled web and middle tier solutions, including the use of the new message-driven EJBs. It also covers the emerging uses of messaging in the mobile domain, and the strong relationship that is building between new XML messaging standards, and small footprint JMS clients. Finally, the book also provides a practical guide to the use of JMS against many of the leading messaging vendors available, including JMQ, FioranoMQ, WebLogic, and iBus//MessageServer.