} catch (DomainException e) { addActionMessage(request, e.getMessage(), null); }
    private void applyChangesToUnavailablePeriod(HttpServletRequest request, Integer idInternal,            DateTime begin, DateTime end, String justification) throws Exception {        try {            Object[] args = { idInternal, begin, end, justification };            executeService(request, "EditUnavailablePeriod", args);        } catch (DomainException e) {            addActionMessage(request, e.getMessage(), null);        }    }