SequenceAcknowledgement oldSequenceAcknowledgement = new SequenceAcknowledgement (namespaceValue);
oldSequenceAcknowledgement.fromOMElement(oldAckElement);
String oldAckIdentifier = oldSequenceAcknowledgement.getIdentifier().getIdentifier();
if (oldAckIdentifier!=null && oldAckIdentifier.equals(this.identifier.getIdentifier())) {
oldAckElement.detach();
}
}
SOAPHeader SOAPHeader = (SOAPHeader) header;
SOAPHeaderBlock sequenceAcknowledgementHeaderBlock = SOAPHeader.addHeaderBlock(