* Its address field will not be used, and that should be given
* separately as the <tt>defaultEndPointAddress</tt>.
*/
protected Stub(WSServiceDelegate owner, Tube master, BindingImpl binding, WSDLPort wsdlPort, EndpointAddress defaultEndPointAddress, @Nullable WSEndpointReference epr) {
this.owner = owner;
this.tubes = new TubePool(master);
this.wsdlPort = wsdlPort;
this.binding = binding;
addrVersion = binding.getAddressingVersion();
// if there is an EPR, EPR's address should be used for invocation instead of default address
if(epr != null)