public ActionForward unspecified(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response) throws Exception {
try {
CoreUtil.clearFlow(request);
WebForwardDatabase udb = WebForwardDatabaseFactory.getInstance();
List replacements = udb.getReplacements();
List replacementItems = new ArrayList();
int idx = 0;
ReplacementItem item = null;
String lastMimeType = null;
String lastSite = null;