Book excerpt: Gives experienced Java developers the tools to exploit aspect-oriented programming techniques using AspectJ, an open source Java extension Delivers a code-intensive, real-world tutorial on building applications with AspectJ Covers the AspectJ compiler and browser as well as the IDE plug-ins and other tools that can be used with AspectJ Masterfully ties together all material in the book so that readers will be able to build a complete, working application Companion Web site includes all sample code, the complete application, and links to other relevant sites