2.1/samples/expenses/src/main/webapp/WEB-INF/web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

	<!-- Servlets -->
	<servlet>
		<servlet-name>requestFactoryServlet</servlet-name>
		<servlet-class>com.google.gwt.requestfactory.server.RequestFactoryServlet</servlet-class>
	</servlet>

	<servlet>
		<servlet-name>dataGeneration</servlet-name>
		<servlet-class>com.google.gwt.sample.expenses.server.DataGenerationServiceImpl</servlet-class>
	</servlet>

	<!-- Enable remote API on Java (for datastore bulkloader). You also need 
		to add appengine-tools-api.jar from the appengine plugin directory to war/WEB-INF/lib -->
	<servlet>
		<servlet-name>remoteapi</servlet-name>
		<servlet-class>com.google.apphosting.utils.remoteapi.RemoteApiServlet</servlet-class>
	</servlet>

	<servlet-mapping>
		<servlet-name>remoteapi</servlet-name>
		<url-pattern>/remote_api</url-pattern>
	</servlet-mapping>

	<servlet-mapping>
		<servlet-name>requestFactoryServlet</servlet-name>
		<url-pattern>/gwtRequest</url-pattern>
	</servlet-mapping>

	<servlet-mapping>
		<servlet-name>dataGeneration</servlet-name>
		<url-pattern>/loadexpensesdb/dataGeneration</url-pattern>
	</servlet-mapping>

	<!-- AppStats -->
	<!-- <servlet> <servlet-name>appstats</servlet-name> <servlet-class>com.google.appengine.tools.appstats.AppstatsServlet</servlet-class> 
		<init-param> <param-name>requireAdminAuthentication</param-name> <param-value>false</param-value> 
		</init-param> </servlet> <servlet-mapping> <servlet-name>appstats</servlet-name> 
		<url-pattern>/appstats/*</url-pattern> </servlet-mapping> <filter> <filter-name>appstats</filter-name> 
		<filter-class>com.google.appengine.tools.appstats.AppstatsFilter</filter-class> 
		<init-param> <param-name>logMessage</param-name> <param-value>Appstats available: 
		/appstats/details?time={ID}</param-value> </init-param> <init-param> <param-name>basePath</param-name> 
		<param-value>/appstats/</param-value> </init-param> </filter> <filter-mapping> 
		<filter-name>appstats</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> -->

	<!-- <security-constraint> <web-resource-collection> <web-resource-name>remoteapi</web-resource-name> 
		<url-pattern>/remote_api</url-pattern> </web-resource-collection> <auth-constraint> 
		<role-name>admin</role-name> </auth-constraint> </security-constraint> -->

	<!-- Require login. -->
	<!-- <security-constraint> <web-resource-collection> <web-resource-name>Access</web-resource-name> 
		<url-pattern>/*</url-pattern> </web-resource-collection> <auth-constraint> 
		<role-name>admin</role-name> </auth-constraint> </security-constraint> -->
</web-app>