private static AbstractSEIModelImpl createSEIModel(WSDLPort wsdlPort,
Class<?> implType, @NotNull QName serviceName, @NotNull QName portName, WSBinding binding,
SDDocumentSource primaryWsdl) {
DatabindingFactory fac = DatabindingFactory.newInstance();
DatabindingConfig config = new DatabindingConfig();
config.setEndpointClass(implType);
config.getMappingInfo().setServiceName(serviceName);
config.setWsdlPort(wsdlPort);
config.setWSBinding(binding);
config.setClassLoader(implType.getClassLoader());
config.getMappingInfo().setPortName(portName);
if (primaryWsdl != null) config.setWsdlURL(primaryWsdl.getSystemId());
config.setMetadataReader(getExternalMetadatReader(implType, binding));
com.sun.xml.ws.db.DatabindingImpl rt = (com.sun.xml.ws.db.DatabindingImpl)fac.createRuntime(config);
return (AbstractSEIModelImpl) rt.getModel();
}