ValidatorForm exception in struts framework

[M Burke]

When I set an ActionError to the ActionErrors collection, I get an unknown exception in the struts framework after validate() returns. I am using Struts 1.2.9. Any ideas?

public ActionErrors validate(ActionMapping mapping, HttpServletRequest request)
{
ActionErrors errors = new ActionErrors();

String actionMethod = request.getParameter(UIGridGlobal.REQID_METHOD);

if (hiddenCurrentEvent != null && hiddenCurrentEvent.compareTo(UIGridGlobal.USER_EVENT_SEND_FORM) == 0){

if(priceBeginDate == null || priceBeginDate.compareTo("") == 0){
errors.add("no review action", new ActionError("errors.grid.ui.priceBeginDate"));
}

if(selectedDealers == null || selectedDealers.length == 0){
errors.add("no review action", new ActionError("errors.grid.ui.selectedDealers"));
}

}

return errors;
}

[Merrill Higginson]

The ActionError class has been deprecated in Struts Version 1.2.9. Use ActionMessage instead. Note that only ActionError is deprecated. ActionErrors is still good.