Entries in web.xml file

        <servlet>
        <servlet-name>RedirectServlet</servlet-name>
        <servlet-class>myservlets.RedirectServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>RedirectServlet</servlet-name>
        <url-pattern>/RedirectServlet</url-pattern>
    </servlet-mapping>

The servlet entry precedes the servlet-mapping entry. The terms are self explanatory.