docs: private void serializeEPR(EndpointReferenceType wsAddr, Node parent) throws ServiceLocatorException {
          try {
              JAXBElement<EndpointReferenceType> ep =
                  WSA_OBJECT_FACTORY.createEndpointReference(wsAddr);
              createMarshaller().marshal(ep, parent);
          } catch (JAXBException e) {
              if (LOG.isLoggable(Level.SEVERE)) {
                  LOG.log(Level.SEVERE,
                          "Failed to serialize endpoint data", e);
              }
              throw new ServiceLocatorException("Failed to serialize endpoint data", e);
          }
      }