ResultParticipation.deleteResultParticipation(participation);
try { ResultParticipation.deleteResultParticipation(participation); } catch (Exception  e) { addActionMessage(request, e.getMessage()); }
    public ActionForward removeParticipation(ActionMapping mapping, ActionForm form,            HttpServletRequest request, HttpServletResponse response) throws Exception {        ResultParticipation participation = readResultParticipationFromRequest(request);        if(participation==null){ return backToResultList(mapping, form, request, response); }               ResultParticipation.deleteResultParticipation(participation);                return prepareEditParticipation(mapping,form,request,response);    }