Pessoal Ajuda aquiii ! Cannot find FacesContext**

Front-end
#1

Pessoal,

Estou fazendo meu primeiro exemplo utilizando jsf, e estou com um probleminha.
seguinte, estou conseguindo acessar a página jsf pela url http://localhost:8080/coreJavaServerFaces/com/capituloUm/index.jsf
porém, ela não passa para a página seguinte, quando se clica no h:commandButton, gera a seguinte exceção: Cannot find FacesContext.
Não está navegando, permenece na mesma página.

segue configuração do web.xml :


   1. <?xml version="1.0" encoding="UTF-8"?>  
   2. <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">  
   3.   <display-name>coreJavaServerFaces</display-name>  
   4.   <welcome-file-list>  
   5.     <welcome-file>index.html</welcome-file>  
   6.     <welcome-file>index.htm</welcome-file>  
   7.     <welcome-file>index.jsp</welcome-file>  
   8.     <welcome-file>default.html</welcome-file>  
   9.     <welcome-file>default.htm</welcome-file>  
  10.     <welcome-file>default.jsp</welcome-file>  
  11.   </welcome-file-list>  
  12.     
  13. <servlet>  
  14.     <servlet-name>Faces Servlet</servlet-name>  
  15.     <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>  
  16.     <load-on-startup>1</load-on-startup>  
  17. </servlet>  
  18.   
  19. <servlet-mapping>  
  20.     <servlet-name>Faces Servlet</servlet-name>  
  21.     <url-pattern>*.jsf</url-pattern>  
  22. </servlet-mapping>  
  23. </web-app>  

<?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>coreJavaServerFaces</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.jsf</url-pattern> </servlet-mapping> </web-app>

faces-config.xml :

   1. <faces-config  
   2.     xmlns="http://java.sun.com/xml/ns/javaee"  
   3.     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
   4.     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd"  
   5.     version="1.2">  
   6.   
   7.     <navigation-rule>  
   8.       <from-view-id>/index.jsp</from-view-id>  
   9.       <navigation-case>  
  10.          <from-outcome>login</from-outcome>  
  11.          <to-view-id>/welcome.jsp</to-view-id>  
  12.       </navigation-case>  
  13.    </navigation-rule>  
  14.   
  15.    <managed-bean>   
  16.       <managed-bean-name>user</managed-bean-name>  
  17.       <managed-bean-class>com.capituloUm.UserBean</managed-bean-class>   
  18.       <managed-bean-scope>session</managed-bean-scope>   
  19.    </managed-bean>  
  20. </faces-config>
#2