binding.invokeBlocking(getCall(), requestDoc);
binding.invokeBlocking(getCall(), "", requestDoc);
    public SystemEndpointer create(String hostname)            throws RemoteException {        CreateBinding binding = new CreateBinding();        CreateRequestDocument requestDoc = binding.createRequest();        CreateRequestDocument.CreateRequest request = requestDoc.addNewCreateRequest();        if (hostname != null) {            request.setHostname(hostname);        }        CreateResponseDocument response =             binding.invokeBlocking(getCall(), requestDoc);        SystemEndpointer createdSystem =new SystemEndpointer(response.getCreateResponse());        return createdSystem;    }