return (competenceCourses == null) ? (competenceCourses = readCompetenceCourses()) : competenceCourses;
return readCompetenceCourses();
    public List<SelectItem> getCompetenceCourses() throws FenixFilterException, FenixServiceException {        return (competenceCourses == null) ? (competenceCourses = readCompetenceCourses()) : competenceCourses;    }