return oldAndNewExecutionPeriodMap; }
	private Map<ExecutionPeriod, ExecutionPeriod> getSimpleExecutionPeriodsTranslationMap(			ValuationPhase oldValuationPhase) {		Map<ExecutionPeriod, ExecutionPeriod> oldAndNewExecutionPeriodMap = new HashMap<ExecutionPeriod, ExecutionPeriod>();		for (ExecutionPeriod executionPeriod : oldValuationPhase.getTeacherServiceDistribution().getExecutionPeriods()) {			oldAndNewExecutionPeriodMap.put(executionPeriod, executionPeriod);		}		return oldAndNewExecutionPeriodMap;	}