EndpointReference partnerEpr;
if (partnerEPR == null) {
partnerEpr = partnerRoleChannel.getInitialEndpointReference();
// In this case, the partner link has not been initialized.
if (partnerEpr == null) throw new UninitializedPartnerEPR();
} else {
partnerEpr = _contexts.eprContext.resolveEndpointReference(partnerEPR);
}
mexDao.setEPR(partnerEpr.toXML().getDocumentElement());