This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Since the Struts stores it's configuration information in an xml file, (struts-config.xml) and it's validator also stores information in an xml file, xml parsing is needed to process these files. When the Struts ActionServlet starts up, it needs xml parsing capability to parse through struts-config.xml.