anchor.diff:      boolean edit = ParamUtils.getBooleanParameter(request, "edit", false);
       String newName = ParamUtils.getParameter(request, "newName");
       String newDescription = ParamUtils.getParameter(request, "newDescription");
  -    String newShowInRosterType = ParamUtils.getParameter(request, "newShow");
  -    boolean newShowInRoster = "onlyGroup".equals(newShowInRosterType) || "everybody".equals(newShowInRosterType);
  -    String  newDisplayName = ParamUtils.getParameter(request, "newDisplay");
       boolean groupInfoChanged = ParamUtils.getBooleanParameter(request, "groupChanged", false);
   
       boolean enableRosterGroups = ParamUtils.getBooleanParameter(request,"enableRosterGroups");
  
positive.code:                         <td width="99%">
                              <input type="text" name="groupDisplayName" size="30" maxlength="100" value="<%= (groupDisplayName != null ? groupDisplayName : "") %>"
                               onclick="this.form.enableRosterGroups[1].checked=true;">
                          </td>
                      </tr>
                  </tbody>
  
negative.code:     }
  
      if (newName != null && newName.length() > 0) {
          if (enableRosterGroups && (groupDisplayName == null || groupDisplayName.trim().length() == 0)) {
              errors.put("groupDisplayName", "");
          }
          if (errors.isEmpty()) {
              group.setName(newName);
  