GetPreferences in jboss Portal cast exception

[edre.py]

Hi...
Im get Preferences like

PortletRequest req = (PortletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

and im get te exception in cast

org.jboss.seam.web.IdentityRequestWrapper

HelpMe please...

[edre.py]

17:28:17,105 ERROR [LifecyclePhase] Error execute phase APPLY_REQUEST_VALUES 2
javax.faces.el.EvaluationException: /uploadAction.xhtml @21,51 fileUploadListener="#{uploadAction.listener}": javax.ejb.EJBTransactionRolledbackException: org.jboss.seam.web.IdentityRequestWrapper cannot be cast to javax.portlet.PortletRequest
at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73)
at org.richfaces.component.UIFileUpload.broadcast(UIFileUpload.java:190)
at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:321)
at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:294)
at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:253)

[edre.py]

the code is:

PortletRequest req = (PortletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

[edre.py]

Caused by: java.lang.ClassCastException: org.jboss.seam.web.IdentityRequestWrapper cannot be cast to javax.portlet.PortletRequest
at com.consulmatica.utmap.uploadfile.session.UploadActionBean.listener(UploadActionBean.java:38)

[edre.py]

I have no idea what the problem is!