Mine

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
  <display-name>xx</display-name>
  <listener>
    <listener-class>wbserver.ApplicationWatch</listener-class>
  </listener>
  <servlet>
    <servlet-name>htmlcontent</servlet-name>
    <servlet-class>wbserver.HtmlContentServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>htmlcontent</servlet-name>
    <url-pattern>/htmlcontent.view</url-pattern>
  </servlet-mapping>
  <resource-ref>
    <description>DB Connection</description>
    <res-ref-name>jdbc/TestDB</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
  </resource-ref>
</web-app>