This hookable component wraps another object and transparently exposes all of its interfaces. You can combine this with a hook that performs arbitrary preprocessing and/or postprocessing of every method call, or a simpler hook (like the Anonymous Delegator Hook) which gets a peek at each interface pointer on the wrapped object (and drops the authn level, etc.).
Essential XML Quick Reference looks at mainstream XML technologies and serves as a thorough quick reference that answers the most common XML-related technical questions. It provides complete coverage of each topic along with plenty of meaningful examples.
Servlets and JSP: the J2EE Web Tier covers how to install a Servlet/JSP environment and what is in the JSP 2.0, Servlet 2.4, and JSTL 1.0 specs. The book also covers state management, design patterns, internationalization support, multi-client design, Java database connectivity, and more.