Error when use Spring with Vaadin

Dear Friends,
I’m trying to develop my first application with Vaadin and Spring. For do this i followed:
Spring Integration

Now when i open the browser http://localhost:8080/myapp/ after that, i wait about 20 second i get this error:
Failed to load the widgetset: ./…/VAADIN/widgetsets/com.vaadin.DefaultWidgetSet/com.vaadin.DefaultWidgetSet.nocache.js?1371030662931.

My web.xml is


<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
    <display-name>Vaadin Web Application</display-name>
    <context-param>
        <description>Vaadin production mode</description>
        <param-name>productionMode</param-name>
        <param-value>false</param-value>
    </context-param>
    <servlet>
        <servlet-name>Vaadin Application Servlet</servlet-name>
          <servlet-class>com.vaadin.server.VaadinServlet</servlet-class> 
      <!--      <servlet-class>com.vaadin.terminal.gwt.server.ApplicationServlet</servlet-class> --> 
       
       	<init-param>
			<description>Vaadin UI class to use</description>
			<param-name>UI</param-name>
			<param-value>org.jboss.tools.gwt.kitchensink.MyArch2.SpringHelloWorld</param-value>
		</init-param>
       
       
        
     
        
    </servlet>
    <servlet-mapping>
        <servlet-name>Vaadin Application Servlet</servlet-name>
        <url-pattern> /*</url-pattern>
    </servlet-mapping>
    <listener>
    	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  	</listener>
  	<context-param>
    	<param-name>contextConfigLocation</param-name>
    	<!--  <param-value>classpath*:applicationContext.xml</param-value> -->
    	<param-value>/WEB-INF/applicationContext.xml</param-value>
  	</context-param>
</web-app>

where i wrong?