Spring web.xml configuration

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>/WEB-INF/log4j.properties</param-value>
    </context-param>
    <listener>
        <listener-class>
            org.springframework.web.util.Log4jConfigListener
        </listener-class>
    </listener>
    <!-- Spring MVC -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            <!--classpath:*Context.xml-->
            /WEB-INF/applicationContext.xml
        </param-value>
    </context-param>
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!--
    <servlet>
        <servlet-name>MVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>MVC</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>MVC</servlet-name>
        <url-pattern>/rest/*</url-pattern>
    </servlet-mapping>
    -->
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <!--
    <security-constraint>
        <display-name>rest services</display-name>
        <web-resource-collection>
            <web-resource-name>RestServices</web-resource-name>
            <description/>
            <url-pattern>/rest/*</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <description/>
            <role-name>chief</role-name>
        </auth-constraint>
    </security-constraint>
    <login-config>
        <auth-method>BASIC</auth-method>
    </login-config>
    <security-role>
        <description/>
        <role-name>chief</role-name>
    </security-role>
    -->
</web-app>