ExecutionPeriod element = (ExecutionPeriod) iter.next();
IExecutionPeriod element = (IExecutionPeriod) iter.next();
    public List readByExecutionYear(Integer executionYearID) throws ExcepcaoPersistencia {        Collection executionPeriods = readAll(ExecutionPeriod.class);           List executionPeriodsAux = new ArrayList();                for (Iterator iter = executionPeriods.iterator(); iter.hasNext();) {            ExecutionPeriod element = (ExecutionPeriod) iter.next();            if(element.getExecutionYear().getIdInternal() == executionYearID)                executionPeriodsAux.add(element);        }             return executionPeriodsAux;    }