Lisa Favors - 2003-10-30

I'm trying to create a simple small project that uses the JAFFA <Portlet:Table> tag.  I'm receiving the following error when I try to execute my  /startTable  Struts action. Does any know what's causing this exception? I think componentId is null, but I'm not sure why. 
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java.lang.NullPointerException
    void org.jaffa.presentation.portlet.widgets.taglib.FormTag.doStartTagExt()
        FormTag.java:209
    int org.jaffa.presentation.portlet.widgets.taglib.FormTag.doStartTag()
        FormTag.java:156
    void _startTbl._jspService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
    [/startTbl.jsp]
        startTbl.jsp:9

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Here is startTbl.jsp:

<%@ page language="java" %>
<%@ page import="org.jaffa.presentation.portlet.widgets.taglib.TagHelper" %>
<%@ taglib uri="/WEB-INF/jaffa-portlet.tld" prefix="Portlet" %>
<html>
<head>
    <Portlet:Header/>
</head>
<body>
<Portlet:Form action="/startTable">
<Portlet:DateTime field="sample1" dateOnly="true"/>
   <Portlet:Table field="sample1" align="center" detail="true" multiSelect="true">
   <Portlet:TableColumn column="Column1" title="String"/>
   <Portlet:TableColumn column="Column2" title="Integer"/>
   <Portlet:TableColumn column="Column3" title="DateOnly"/>
   </Portlet:Table>
      <Portlet:RaiseErrors/>
</Portlet:Form>
<Portlet:Footer/>
</body>
</html>
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Thanks in advance for any insight you can offer.
-Lisa