for (int i=0; i<fras; i++) {
final Handle<Quote> r = new Handle<Quote>(fraRates[i]);
fraHelpers[i] = new
FraRateHelper(r, fraData[i].n, fraData[i].n + 3,
euribor3m.fixingDays(),
euribor3m.fixingCalendar(),
euribor3m.businessDayConvention(),
euribor3m.endOfMonth(),
euribor3m.dayCounter());
}