RF 3.3.3, JSF 2.0.3 and SWF 2.3.1 - FlowSerializedVie cannot be cast..

Hello we were using RF 3.2.1, JSF 1.2 and SWF 2.3.0. Now we have to use 3.3.3 with JSF 2.0, SWF 2.3.1 (RF 4 is not possible, because we had to change too many .xhtml pages for this..)

So we changed our configfiles web.xml, faces.xml and mvc.xml:

according to:

https://community.jboss.org/wiki/RichFaces333andJSF20
and
http://static.springsource.org/sprin...l/ch13s05.html

Application starts on tomcat6, no error is log, welcomePage (via Webflow) comes up. but if i try to open any other page that is mapped to a Flow following error occurs:

27.02.2013 17:22:53 com.sun.facelets.FaceletViewHandler handleRenderException
SCHWERWIEGEND: Error Rendering View[/pages/ident/identSearch.xhtml]
java.lang.ClassCastException: org.springframework.faces.webflow.FlowSerializedVi ew cannot be cast to [Ljava.lang.Object;
at org.springframework.faces.webflow.FlowViewStateMan ager.saveView(FlowViewStateManager.java:174)
at org.springframework.faces.webflow.FlowViewStateMan ager.saveSerializedView(FlowViewStateManager.java: 140)
at com.sun.facelets.FaceletViewHandler.renderView(Fac eletViewHandler.java:617)
at org.ajax4jsf.application.ViewHandlerWrapper.render View(ViewHandlerWrapper.java:100)
at org.ajax4jsf.application.AjaxViewHandler.renderVie w(AjaxViewHandler.java:176)
at org.springframework.faces.webflow.FlowViewHandler. renderView(FlowViewHandler.java:99)
at com.sun.faces.lifecycle.RenderResponsePhase.execut e(RenderResponsePhase.java:117)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:9 7)
at com.sun.faces.lifecycle.LifecycleImpl.render(Lifec ycleImpl.java:135)
at org.springframework.faces.webflow.FlowLifecycle.re nder(FlowLifecycle.java:80)
at org.springframework.faces.webflow.JsfView.render(J sfView.java:89)
at org.springframework.webflow.engine.ViewState.rende r(ViewState.java:296)
at org.springframework.webflow.engine.ViewState.doEnt er(ViewState.java:186)
at org.springframework.webflow.engine.State.enter(Sta te.java:194)
at org.springframework.webflow.engine.Flow.start(Flow .java:535)
at org.springframework.webflow.engine.impl.FlowExecut ionImpl.start(FlowExecutionImpl.java:366)
at org.springframework.webflow.engine.impl.FlowExecut ionImpl.start(FlowExecutionImpl.java:222)
at org.springframework.webflow.executor.FlowExecutorI mpl.launchExecution(FlowExecutorImpl.java:140)
at org.springframework.webflow.mvc.servlet.FlowHandle rAdapter.handle(FlowHandlerAdapter.java:193)
at org.springframework.faces.webflow.JsfFlowHandlerAd apter.handle(JsfFlowHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet. doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet. doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.p rocessRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.d oGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:722)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:210)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(Base XMLFilter.java:206)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseF ilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHa ndleRequest(BaseFilter.java:388)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter .java:515)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:210)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :378)
at org.springframework.security.intercept.web.FilterS ecurityInterceptor.invoke(FilterSecurityIntercepto r.java:109)
at org.springframework.security.intercept.web.FilterS ecurityInterceptor.doFilter(FilterSecurityIntercep tor.java:83)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.SessionFixationPro tectionFilter.doFilterHttp(SessionFixationProtecti onFilter.java:67)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.ExceptionTranslati onFilter.doFilterHttp(ExceptionTranslationFilter.j ava:101)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.providers.anonymous.A nonymousProcessingFilter.doFilterHttp(AnonymousPro cessingFilter.java:105)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.wrapper.SecurityConte xtHolderAwareRequestFilter.doFilterHttp(SecurityCo ntextHolderAwareRequestFilter.java:91)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.AbstractProcessing Filter.doFilterHttp(AbstractProcessingFilter.java: 277)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.preauth.AbstractPr eAuthenticatedProcessingFilter.doFilterHttp(Abstra ctPreAuthenticatedProcessingFilter.java:69)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.preauth.AbstractPr eAuthenticatedProcessingFilter.doFilterHttp(Abstra ctPreAuthenticatedProcessingFilter.java:69)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.preauth.AbstractPr eAuthenticatedProcessingFilter.doFilterHttp(Abstra ctPreAuthenticatedProcessingFilter.java:69)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.ui.logout.LogoutFilte r.doFilterHttp(LogoutFilter.java:89)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.context.HttpSessionCo ntextIntegrationFilter.doFilterHttp(HttpSessionCon textIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilt er.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy $VirtualFilterChain.doFilter(FilterChainProxy.java :390)
at org.springframework.security.util.FilterChainProxy .doFilter(FilterChainProxy.java:175)
at org.springframework.web.filter.DelegatingFilterPro xy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterPro xy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:175)
at org.apache.catalina.authenticator.AuthenticatorBas e.invoke(AuthenticatorBase.java:462)
at at.oenb.common.security.web.TomcatSpnegoValve.cont inueWithChain(TomcatSpnegoValve.java:937)
at at.oenb.common.security.web.TomcatSpnegoValve.invo ke(TomcatSpnegoValve.java:534)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:100)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:405)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:278)
at org.apache.coyote.AbstractProtocol$AbstractConnect ionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProce ssor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)


Does anyone have any ideas about this error?
Thx in advance