Erro usando JSF ...Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com

Olá,

estou usando TOMCAT 6 ,JAVA 5 ,JSF 1.2 , jsf-facelets,richfaces-api-3.2.1.GA

e quando executo jsp me da erro .

alguém já teve esse problema …abs

<%@ taglib prefix="f" uri="http://java.sun.com/jsf/core" %>
<%@ taglib prefix="h" uri="http://java.sun.com/jsf/html" %>
<%@ taglib prefix="a4j" uri="http://richfaces.org/a4j" %>
<%@ taglib prefix="rich" uri="http://richfaces.org/rich" %>

  
  <html>
    <head>
       <title>Lista de Usuário</title>
    </head>


    <f:view>


          <h:form id="lista">
             <h:panelGrid columns="3"  style="border: 1px solid #000000; padding: 4px; width: 410; height: 34px;">

                <h:outputText value ="Busca"/>
                <h:outputText id="resultado" value="#{pubUsuario.status}"/>
             </h:panelGrid>    
         

             <h:panelGrid columns="3"  style="border: 1px solid #000000; padding: 4px; width: 410; height: 34px;">

                    <h:outputText value ="Nome:"/>
                    <h:inputText id="Nome" value="#{pubUsuario.nome}"  />
                    <h:outputText value =""/>

                    <h:outputText value ="Login:"/>
                    <h:inputText id="Login" value="#{pubUsuario.login}"  />
                    <h:outputText value =""/>

                    <h:outputText value="Nivel:" />
                    <h:selectOneMenu id="nivel" value="#{pubUsuario.nivel}"
	                    rendered="true" >
	                       <f:selectItems value="#{pubUsuario.niveis}" />
	                   </h:selectOneMenu>
                     <h:outputText value =""/>

                   <h:outputText value="Loja:" />
                   <h:selectOneMenu id="loja" value="#{pubUsuario.loja}"
	                    rendered="true">
	                       <f:selectItems value="#{pubUsuario.lojas}" />
	                   </h:selectOneMenu>
                   <h:outputText value =""/>
                 <tr>
                   <td colspan="2" align="right">
                       <h:commandButton value="Pesquisar" action="#{pubUsuario.pesquisaUsuarios}" image="../img/Template_LinkPesquisar.gif" alt="Pesquisar"/>
                   </td>
                 </tr> 
                
             </h:panelGrid>
             <br>

             &lt;h:commandButton value="Novo Cliente" action="novoUsuario"  image="../img/Template_LinkIncluir.gif" alt="Incluir Registro"/&gt;<br><br>
          &lt;/h:form&gt;
          &lt;h:form&gt;


          &lt;h:outputText value ="Lista de Usuários" rendered="#{not empty pubUsuario.lista}" /&gt;
          &lt;rich:dataTable id="usuarios" border="1" value="#{pubUsuario.lista}" var="a" rows="5" rendered="#{not empty pubUsuario.lista}"  binding="#{pubUsuario.objDataTableUsuario}" &gt;

                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Nome" /&gt;
                   &lt;/f:facet&gt;
                   &lt;h:outputText value="#{a.nomeUsuario}"/&gt;
                &lt;/h:column&gt;

                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Login"/&gt;
                   &lt;/f:facet&gt;
                   &lt;h:outputText value="#{a.login}"/&gt;
                &lt;/h:column&gt;

                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Nível"/&gt;
                   &lt;/f:facet&gt;
                   &lt;h:outputText value="#{a.nivel.id}"/&gt;
                &lt;/h:column&gt;


                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Loja"/&gt;
                   &lt;/f:facet&gt;
                   &lt;h:outputText value="#{a.filial.id}"/&gt;
                &lt;/h:column&gt;

                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Excluir"/&gt;
                   &lt;/f:facet&gt;
                   &lt;center&gt;&lt;h:commandButton action="#{pubUsuario.excluir}" image="../imagens/del.gif"/&gt;
                &lt;/h:column&gt;

                &lt;h:column&gt;
                   &lt;f:facet name="header"&gt;
                      &lt;h:outputText value="Alterar"/&gt;
                   &lt;/f:facet&gt;
                   &lt;center&gt;&lt;h:commandButton action="#{pubUsuario.alterar}" image="../imagens/altera.gif"/&gt;
                &lt;/h:column&gt;
                &lt;f:facet name="footer"&gt;
                   &lt;rich:datascroller/&gt;
                   
                &lt;/f:facet&gt;

             &lt;/rich:dataTable&gt;
             


          &lt;/h:form&gt;

    &lt;/f:view&gt;
    &lt;/html&gt;

SEVERE: JSF1054: (Phase ID: RENDER_RESPONSE 6, View ID: 
/jsf/listaUsuario.jsp) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@3ce725]