anchor.diff:                      <option value="${option}" <c:if test="${dec.selectedValue == option}">selected</c:if>>
                         <c:out value="${option}" />
                       </option>
  +
                     </c:forEach>
                   </html:select>
   
  
positive.code: <%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
  <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
  <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
  
negative.code:    NULL OR NOT NULL CONSTRAINT
  -->
    <c:if test="${(dec.path.attribute && !dec.path.primitive) || dec.path.reference || dec.path.collection}">
  
    <br/>
    <FIELDSET class="constraintFieldset">
      <LEGEND>
  