code: public BindingInfo createBindingInfo(Service service, String namespace,
                                           Object obj) {
  
          ServiceInfo si = new ServiceInfo();
          si.setTargetNamespace(ProtobufBindingFactory.PROTOBUF_BINDING_ID);
  
          BindingInfo info = new BindingInfo(si,
                  ProtobufBindingFactory.PROTOBUF_BINDING_ID);
  
          return info;
      }
docs: /*
  The concept of BindingInfo can not be applied to protocol buffers. Here
  we create BindingInfo merely to make this compatible with CXF framework.