This is where you can find the errata for Web Application Architecture: Principles, Protocols, and Practices and for the Virtual Realty Listing Services sample application it contains.
No errata have been reported for the book at this time.
The new version of the VRLS Struts application (for the second edition of the book) was updated on 2009-05-01, to fix a problem introduced by a new version of the MySQL JDBC driver. The connection URL in the context.xml file was updated to add a parameter that corrects this problem. Re-download the zip file containing the application source package to acquire the fixed version.