@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			PaymentAmountKey other = (PaymentAmountKey) obj;
			if (amount == null) {
				if (other.amount != null)
					return false;
			} else if (!amount.equals(other.amount))
				return false;
			if (duePayments == null) {
				if (other.duePayments != null)
					return false;
			} else if (!duePayments.equals(other.duePayments))
				return false;
			return true;
		}