QName upperQName = wsrmConstants.getUpperQName();
QName lowerQName = wsrmConstants.getLowerQName();
for (SOAPElement ackRangeElement : ackRangeElements)
{
RMSequenceAcknowledgement.RMAcknowledgementRange ackRange = o.newAcknowledgementRange();
// read required wsrm:Upper attribute
String upper = getRequiredTextContent(ackRangeElement, upperQName, ackRangeQName);
ackRange.setUpper(stringToLong(upper, "Unable to parse Upper attribute text content"));