For a longer introduction to JBoss, see JBoss: A Developer's Notebook. (O'Reilly, 2005. Norman Richards, Sam Griffith).

For more comprehensive JBoss documentation covering advanced JBoss topics, see JBoss 4 Application Server Guide, available at http://docs.jboss.org/. A print version of the guide is available as JBoss 4.0: The Official Guide. (Sams, 2005)

For general EJB instruction, with thorough JBoss coverage, see Enterprise JavaBeans, 4th Edition. (O'Reilly, 2004. Richard Monson-Haeful, Bill Burke, Sacha Labourey)

For additional, but dated, EJB instruction, we also recommend the classic Mastering Enterprise JavaBeans, Second Edition. (Wiley, 2001. Ed. Roman et al.) A free PDF version of the first edition is available online at http://www.theserverside.com/books/masteringEJB/index.jsp.

For complete coverage of the new J2EE 1.4 web services, see J2EE Web Services. (Addison-Wesley, 2003. Richard Monson-Haefel )

For more information about using XDoclet to simplify J2EE development, see XDoclet in Action. (Manning, 2003. Craig Walls, Norman Richards)

To learn more about Hibernate, see Hibernate in Action. (Manning, 2004. Christian Bauer, Gavin King)