O><web-app xmlns="http://java.sun.com/xml/ns/j2ee"
O> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
O> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
O>http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
O> version="2.4">
O><web-app>
O>...
O></web-app>