List<EnrolmentEvaluation> results = new ArrayList<EnrolmentEvaluation>();
List<Enrolment> results = new ArrayList<Enrolment>();
    private List<EnrolmentEvaluation> getActiveEnrollments(ExecutionPeriod executionPeriod,            Student student) {        List<EnrolmentEvaluation> results = new ArrayList<EnrolmentEvaluation>();        for (final CurriculumModule curriculumModule : getCurriculumModules()) {            Enrolment enrollment = (Enrolment) curriculumModule;            boolean filters = true;            filters &= !enrollment.getEnrollmentState().equals(EnrollmentState.ANNULED);            filters &= executionPeriod == null                    || enrollment.getExecutionPeriod().equals(executionPeriod);            filters &= student == null                    || enrollment.getStudentCurricularPlan().getStudent().equals(student);            if (filters) {                results.addAll(enrollment.getEvaluations());            }        }        return results;    }