probleme migration jsf 1.2 ==> jsf 2 erreur : java.lang.IllegalStateException

bonjour à tous.
J'ai voulu faire une migration de mon application qui marchait avec jsf1.2 vers jsf2.1.1 FCS mais il me marque une erreur avec le viewhandler

Code:

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GRAVE: Servlet.service() for servlet [faces Servlet] in context with path [/supervisionJSF] threw exception [Tentative non autorisée de définition de ViewHandler après la restitution dune réponse.] with root cause
java.lang.IllegalStateException: Tentative non autorisée de définition de ViewHandler après la restitution dune réponse.
	at com.sun.faces.application.ApplicationImpl.setViewHandler(ApplicationImpl.java:562)
	at org.ajax4jsf.event.InitPhaseListener.beforePhase(InitPhaseListener.java:92)
	at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228)
...
 
14:46:18,113 ERROR [org.ajax4jsf.webapp.BaseXMLFilter] Exception in the filter chain
javax.servlet.ServletException: Tentative non autorisée de définition de ViewHandler après la restitution dune réponse.
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:422)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter ...
 
Caused by: java.lang.IllegalStateException: Tentative non autorisée de définition de ViewHandler après la restitution dune réponse.
	at com.sun.faces.application.ApplicationImpl.setViewHandler(ApplicationImpl.java:562)...

voici mon web.xml

Code:

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<?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" version="2.5">
  <display-name>Supervision JSF</display-name>
  <context-param>
        <param-name>facelets.RECREATE_VALUE_EXPRESSION_ON_BUILD_BEFORE_RESTORE</param-name>
        <param-value>false</param-value>
    </context-param>
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:application-context*.xml</param-value>
  </context-param>
  <context-param>
    <param-name>javax.faces.FACELETS_LIBRARIES</param-name>
    <param-value>/WEB-INF/springsecurity.taglib.xml</param-value>
  </context-param>
  <context-param>
    <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
    <param-value>com.sun.facelets.FaceletViewHandler</param-value>
  </context-param>
  <context-param>
    <param-name>javax.faces.DEFAULT_SUFFIX</param-name>
    <param-value>.xhtml</param-value>
  </context-param>
  <context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>classpath:log4j.properties</param-value>
  </context-param>
  <context-param>
     <param-name>javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER</param-name>
     <param-value>true</param-value>
</context-param>
  <filter>
    <display-name>RichFaces Filter</display-name>
    <filter-name>filtre richface</filter-name>
    <filter-class>org.ajax4jsf.Filter</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>filtre richface</filter-name>
    <servlet-name>faces Servlet</servlet-name>
    <dispatcher>REQUEST</dispatcher>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>INCLUDE</dispatcher>
  </filter-mapping>
  <filter>
    <filter-name>springSecurityFilterChain</filter-name>
    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
  </filter>
  <filter-mapping>
    <filter-name>springSecurityFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
    <dispatcher>FORWARD</dispatcher>
    <dispatcher>REQUEST</dispatcher>
  </filter-mapping>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
  </listener>
  <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>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
  </welcome-file-list>
</web-app>

apparement j'ai comme l'impression que c'est le parametre

Code:

<context-param><param-name>javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER</param-name><param-value>true</param-value></context-param>

qui pose probleme mais vu que si on ne le met pas le serveur ne demarre pas.
Quelqu'un peut il maider SVP ...