Understanding servlet mappings

http://livedocs.adobe.com/jrun/4/Programmers_Guide/techniques_servlet6.htm
To access any servlet on a JRun server, you can use the implicit /servlet mapping as long as you store the servlet in the /WEB-INF/classes directory. For example, if you store the MyServlet.class file in /WEB-INF/classes, you can request http://yourhost/servlet/MyServlet to request that servlet.
This mapping is predefined in the default-web.xml file, as the following example shows:

��ServletInvoker
��/servlet/