requestMap.put("currentViewId", vee.getViewId());
try { fc.getExternalContext().getFlash().put("expiredViewId", vee.getViewId());
viewId = ((ViewExpiredException) throwable).getViewId();
String viewId = vex.getViewId();
viewId = ((ViewExpiredException) throwable).getViewId();
viewId = ((ViewExpiredException) throwable).getViewId();