Jsf <；h:dataTable值不为null，但页面为空

我有两个数据表，一个一个。代码如下：

<h:dataTable value="#{allUserBean.userList}" var="pmUsers">
  <h:column headerClass="tableHeader column8Header">
    <f:facet name="header">
      <h:commandLink actionListener="#{allUser.sortByEmpNo}" immediate="true">
        <h:panelGrid columns="2" columnClasses="colSortText,colSortImg">
          <h:outputText value="Emp No." />
          <h:panelGrid rendered="#{allUserBean.sortType == 0}">
            <h:graphicImage url="/images/sortup.gif" rendered="#{allUserBean.up}" />
            <h:graphicImage url="/images/sortdown.gif" rendered="#{!allUserBean.up}" />
          </h:panelGrid>
        </h:panelGrid>
      </h:commandLink>
    </f:facet>
    <h:outputText value="#{pmUsers.employeeNo}" />
  </h:column>
  <h:dataTable  var="iterm" value="#{pmUsers.userMultyResumeList}"">                       
    <h:outputText value="#{iterm}" />
  </h:dataTable> `

<h:dataTable  var="iterm" value="#{pmUsers.userMultyResumeList}">     

尝试打印列表pmUsers.usermultyresumelist的大小。我已解决该问题。因为这些代码存在一个问题：
<h:dataTable  var="iterm" value="#{pmUsers.userMultyResumeList}"">      

<h:dataTable  var="iterm" value="#{pmUsers.userMultyResumeList}">