Hello to all!
i'am not good write in english, so excuse for language mistakes. )))

I have statful bean:
@Stateful
@Scope(ScopeType.CONVERSATION)
@Name("superCardList")

In this class there is an attribute:
private Object selectEntity;

in begin() method it defined:
selectEntity = cardList1.getCardInfo().getBaseClass().newInstance();


in ajax-form i have input columns to enter values:

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
                xmlns:s="http://jboss.com/products/seam/taglib"
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:rich="http://richfaces.org/rich"
            xmlns:c="http://java.sun.com/jstl/core"               
            xmlns:a4j="http://richfaces.org/a4j"               
                template="/layout/template.xhtml">
                      
<ui:define name="body">

<a4j:form id="addRecord" styleClass="edit">

     <a4j:outputPanel ajaxRendered="true">
           <h:messages globalOnly="true" styleClass="message" id="globalMessages"/>
     </a4j:outputPanel>   
   
        <rich:panel style="width:99%; height:85%;" bodyStyle="width:99%; height:85%;">
         <f:facet name="header">Adding record in "#{superCardList.cardList1.cardInfo.desc}"</f:facet>

     <c:forEach begin="0" end="#{superCardList.cardList1.getFieldsSize()}" var="curr" step="1">                         
     <h:panelGrid columns="2">
     <s:decorate template="/layout/edit.xhtml">
     <ui:define name="label"> #{superCardList.cardList1.fields.get(curr).name}        </ui:define>                    

     <h:inputText value="#{superCardList.cardList1.fields.get(curr).getValue(superCardList.selectEntity)}"
     size="70"
     maxlength="70"
     required="#{superCardList.cardList1.fields.get(curr).notNull}"
     rendered="#{superCardList.cardList1.fields.get(curr).isGenerated()==false &amp;&amp; superCardList.cardList1.getFieldType(curr)==1}">
     </h:inputText>
                                        
     <h:inputText value="#{superCardList.cardList1.fields.get(curr).getValue(superCardList.selectEntity)}"
     size="70"
     required="#{superCardList.cardList1.fields.get(curr).notNull}"
     rendered="#{superCardList.cardList1.fields.get(curr).isGenerated()==false &amp;&amp; superCardList.cardList1.getFieldType(curr)==3}">
     </h:inputText>

     <h:inputText value="#{superCardList.cardList1.getJoinColumnValue(superCardList.cardList1.fields.get(curr),superCardList.selectEntity)}"
      size="70"
          required="#{superCardList.cardList1.fields.get(curr).notNull}"
      rendered="#{superCardList.cardList1.fields.get(curr).isJoinColumn()}">
     </h:inputText>
                                                           <h:selectOneMenu value="#{superCardList.cardList1.fields.get(curr).getValue(superCardList.selectEntity)}"
         required="#{superCardList.cardList1.fields.get(curr).notNull}"
         rendered="#{superCardList.cardList1.fields.get(curr).isGenerated()==false &amp;&amp; superCardList.cardList1.getFieldType(curr)==2}">
          <f:selectItem itemLabel="Don't choise" itemValue="" />
          <f:selectItem itemLabel="1" itemValue="1" />
          <f:selectItem itemLabel="0" itemValue="0" />
          </h:selectOneMenu>
                                     
          <h:outputText value="Value will be generated automatically"
      size="70"
      rendered="#{superCardList.cardList1.fields.get(curr).generated}">
      </h:outputText>

     <a4j:commandButton action="#{superCardList.beginCardList2()}"
     value="Choose"
     immediate="false"
     rendered="#{superCardList.cardList1.fields.get(curr).isJoinColumn()}">
              <a4j:actionparam name="className0" value="#{superCardList.cardList1.fields.get(curr).getJoinField().getCardInfo().getBaseClass().getName()}"/>
            <a4j:actionparam name="firstResult0" value="0"/>
     </a4j:commandButton>
                      
     </s:decorate>                         
     </h:panelGrid>
     </c:forEach>

            <div style="clear:both">
            <b>
                <span class="required">* Required fields </span>
            </b>
            </div>  
        </rich:panel>
     </a4j:form>


When i push button "Choose" to choose value to field from Directory, how i understand,
before sending from ajasx-form to server data in fields is validating and in this step raise an error:
sourceId=addRecord:j_id188:j_id196[severity=(ERROR 2), summary=(model validation failed:/test_andru/CardAdd.xhtml @34,146 value="#{superCardList.cardList1.fields.get(curr).getValue(superCardList.selectEntity)}": Illegal Syntax for Set Operation), detail=(model validation failed:/test_andru/CardAdd.xhtml @34,146 value="#{superCardList.cardList1.fields.get(curr).getValue(superCardList.selectEntity)}": Illegal Syntax for Set Operation)]

what is it? help me please.