// fixed rate leg
        private static SwapLeg iborLeg(LocalDate start, LocalDate end, IborIndex index, PayReceive payReceive, NotionalSchedule notional, StubConvention stubConvention)
        {
            Frequency freq = Frequency.of(index.Tenor.Period);

            return(RateCalculationSwapLeg.builder().payReceive(payReceive).accrualSchedule(PeriodicSchedule.builder().startDate(start).endDate(end).frequency(freq).businessDayAdjustment(BDA_MF).stubConvention(stubConvention).build()).paymentSchedule(PaymentSchedule.builder().paymentFrequency(freq).paymentDateOffset(DaysAdjustment.NONE).build()).notionalSchedule(notional).calculation(IborRateCalculation.builder().index(index).fixingDateOffset(DaysAdjustment.ofBusinessDays(-2, index.FixingCalendar, BDA_P)).build()).build());
        }
 // fixed rate leg
 private static SwapLeg fixedLeg(LocalDate start, LocalDate end, Frequency frequency, PayReceive payReceive, NotionalSchedule notional, double fixedRate, StubConvention stubConvention)
 {
     return(RateCalculationSwapLeg.builder().payReceive(payReceive).accrualSchedule(PeriodicSchedule.builder().startDate(start).endDate(end).frequency(frequency).businessDayAdjustment(BDA_MF).stubConvention(stubConvention).build()).paymentSchedule(PaymentSchedule.builder().paymentFrequency(frequency).paymentDateOffset(DaysAdjustment.NONE).build()).notionalSchedule(notional).calculation(FixedRateCalculation.builder().dayCount(THIRTY_U_360).rate(ValueSchedule.of(fixedRate)).build()).build());
 }