tests/test-jmx/jmx-webapp/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<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 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
   metadata-complete="true"
   version="2.5"> 

  <display-name>Test JMX WebApp</display-name>
  
  <context-param>
    <param-name>org.eclipse.jetty.server.context.ManagedAttributes</param-name>
    <param-value>
        org.eclipse.jetty.test.jmx.common,
        org.eclipse.jetty.test.jmx.ping,
        org.eclipse.jetty.test.jmx.echo,
        Ping
     </param-value>
  </context-param>
  
  <servlet>
    <servlet-name>Ping</servlet-name>
    <servlet-class>org.eclipse.jetty.test.jmx.PingServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>Ping</servlet-name>
    <url-pattern>/ping</url-pattern>
  </servlet-mapping>

</web-app>