<%@ page import="com.sun.j2ee.workflow.control.exceptions.MissingFormDataException" %><%@ page import="java.util.Collection" %><%@ page import="java.util.Iterator" %><p><%  MissingFormDataException error =    (MissingFormDataException)request.getAttribute("missingFormData");  Collection missingFields = null;  if (error != null)    missingFields = error.getMissingFields();%><font size="5" color="red"><%= error.getMessage() %></font><p>  Please return to the previous page using the back button on your  browser and ensure that the following fields are properly entered  and re-submit the form.<ul><%  if (missingFields != null) {    Iterator it = missingFields.iterator();    while (it.hasNext()) {      String item = (String)it.next();%>    <li><%= item %></li><%   } %><% } %></ul>