@Override
    public void handle() throws FacesException {

        final Iterator<ExceptionQueuedEvent> i = getUnhandledExceptionQueuedEvents().iterator();
        while (i.hasNext()) {
            ExceptionQueuedEvent event = i.next();
            ExceptionQueuedEventContext context =
                    (ExceptionQueuedEventContext) event.getSource();

            // get the exception from context
            Throwable t = context.getException();

            final FacesContext fc = FacesContext.getCurrentInstance();
            final Map<String, Object> requestMap = fc.getExternalContext().getRequestMap();
            final NavigationHandler nav = fc.getApplication().getNavigationHandler();

            //here you do what ever you want with exception
            try {

                //log error ?
                log.log(Level.SEVERE, "Critical Exception!", t);

                //redirect error page
                requestMap.put("exceptionMessage", t.getMessage());
                nav.handleNavigation(fc, null, "/error");
                fc.renderResponse();

                // remove the comment below if you want to report the error in a jsf error message
                //JsfUtil.addErrorMessage(t.getMessage());

            } finally {
                //remove it from queue
                i.remove();
            }
        }
        //parent hanle
        getWrapped().handle();
    }