Embedded tomcat without deployment descriptor(web.xml)

I just had to write some code for running a single servlet for testing and wrote this java program which uses Embedded tomcat.
The following code doesn't use web.xml to configure the context. Context configuration is done programmatically using the StandardContext class in catalina.jar. I have added a servlet and mapped it to the URL "/example".

           
  System.setProperty("catalina.home", "./");
         Embedded embedded = new Embedded();
         Engine engine = null;
         Host host = null;
         // Create an embedded server
         embedded = new Embedded();

 // print all log statments to standard error
         embedded.setDebug(0);
         embedded.setLogger(new SystemOutLogger());

 // Create an engine
         engine = embedded.createEngine();
         engine.setDefaultHost("localhost");

 // Create a default virtual host
         host = embedded.createHost("localhost", "./");
         engine.addChild(host);


 StandardContext context = (StandardContext) embedded.createContext("/ContextPath","/test");
         context.setWorkDir("./test");
         context.setConfigured(true);
         Wrapper servlet = context.createWrapper();
         servlet.setServletClass(ExampleServlet.class.getName());
         servlet.setName("example");
         context.addChild(servlet);
         context.addServletMapping("/example", "example");

 host.addChild(context);
        host.setAutoDeploy(true);

 // Install the assembled container hierarchy
        embedded.addEngine(engine);

 // Assemble and install a default HTTP connector
        Connector connector = embedded.createConnector("127.0.0.1", 8080,
          false);
        embedded.addConnector(connector);
         // Start the embedded server
        embedded.start()

This may help while writing unit tests for servlets which cannot be tested with cactus or httpUnit.

Happy coding...