if(gratuitySituations == null){ continue; }
	public IGratuitySituation readGratuitySituationByExecutionDegreeAndStudent(			final Integer executionDegreeID, final Integer studentID) throws ExcepcaoPersistencia {		final List<IStudentCurricularPlan> studentCurricularPlans = ((IStudent) readByOID(Student.class,				studentID)).getStudentCurricularPlans();		for (final IStudentCurricularPlan studentCurricularPlan : studentCurricularPlans) {			List<IGratuitySituation> gratuitySituations = studentCurricularPlan.getGratuitySituations();			for (final IGratuitySituation gratuitySituation : gratuitySituations) {				if (gratuitySituation.getGratuityValues().getExecutionDegree().getIdInternal().equals(						executionDegreeID)) {					return gratuitySituation;				}			}		}		return null;	}