App Engine web.xml -- trying to get App Engine Dev Server to play nicely with Clojure

web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>


<web-app 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/web-app_2_5.xsd"
         version="2.5">

  <display-name>Google App Engine Template</display-name>

  <servlet>
    <servlet-name>app</servlet-name>
    <servlet-class>org.lpetit.ring.servlet.RingHttpServlet</servlet-class>
    <init-param>
      <param-name>handler</param-name>
      <param-value>airflow.app_servlet/hello</param-value>
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>app</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>

  <context-param>
    <param-name>context-init</param-name>
    <param-value>airflow.context-test/start-up</param-value>
  </context-param>
  <context-param>
    <param-name>context-destroy</param-name>
    <param-value>airflow.context-text/shutdown</param-value>
  </context-param>
  <listener>
    <listener-class>org.lpetit.ring.servlet.RingServletContextListener</listener-class>
  </listener>

  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>

</web-app>