examples/tiny-webapp/Hello/WebRoot/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>


  <display-name>Hello sample web-application</display-name>

  <servlet>
    <servlet-name>some-init-servlet</servlet-name>
    <servlet-class>wombat.InitServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet>
    <servlet-name>HelloServlet</servlet-name>
    <servlet-class>wombat.HelloServlet</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>HelloServlet</servlet-name>
    <url-pattern>/HelloServlet</url-pattern>
  </servlet-mapping>

  <env-entry>
   <description>JNDI logging context for this app</description>
   <env-entry-name>log4j/context-name</env-entry-name>
   <env-entry-value>hello</env-entry-value>
   <env-entry-type>java.lang.String</env-entry-type>
  </env-entry>
   
  <env-entry>
   <description>URL for configuring log4j context</description>
   <env-entry-name>log4j/configuration-resource</env-entry-name>
   <env-entry-value>hello-log4j.xml</env-entry-value>
   <env-entry-type>java.lang.String</env-entry-type>
  </env-entry>
  
   <listener>
     <listener-class>org.apache.log4j.selector.servlet.ContextDetachingSCL</listener-class>
   </listener>
  
</web-app>