private static IborIndex lockIndexCalendar(IborIndex index) { return ((ImmutableIborIndex) index).toBuilder() .fixingCalendar(CalendarUSD.NYC) .effectiveDateOffset(index.getEffectiveDateOffset().toBuilder() .calendar(CalendarUSD.NYC) .adjustment(index.getEffectiveDateOffset().getAdjustment().toBuilder() .calendar(CalendarUSD.NYC) .build()) .build()) .maturityDateOffset(index.getMaturityDateOffset().toBuilder() .adjustment(index.getMaturityDateOffset().getAdjustment().toBuilder() .calendar(CalendarUSD.NYC) .build()) .build()) .build(); }