can i use beanproxy from rpc?

Hi,

i want to use beanproxy with rpc.

something like that

public class UIBdEmpresaImpl extends UIBdEmpresa {
    private final ServiceExportarAsync servicioExportar = GWT.create(ServiceExportar.class);
    private UIHomeBdEmpresa uiHomeBdEmpresa;

    public UIBdEmpresaImpl(UIHomeBdEmpresa uiHomeBdEmpresa) {
        this.uiHomeBdEmpresa=uiHomeBdEmpresa;
        loadTable();
    }

    @Override
    public void loadTable() {
        popup.showPopup();
        ContextMantenimientoBdEmpresa context = FACTORY.contextMantenimientoBdEmpresa();
        FACTORY.initialize(EVENTBUS);
        String keyPublic = UISesion.keyPublic;
        Request<List<BdEmpresaProxy>> request = context.listar(keyPublic);
        request.fire(new Receiver<List<BdEmpresaProxy>>() {

            @Override
            public void onSuccess(List<BdEmpresaProxy> response) {
                grid.getSelectionModel().clear();
                grid.setData(response);
                popup.hidePopup();
                //lstBdEmpresa.setData(grid.getData());
            }
           
            @Override
            public void onFailure(ServerFailure error) {
                popup.hidePopup();
                //Window.alert(error.getMessage());
                Notification not=new Notification(Notification.WARNING,error.getMessage());
                not.showPopup();
            }
        });
    }
   
    @Override
    public void exportarData() {
        servicioExportar.exportar(grid.getData(),new AsyncCallback<Void>() {

            @Override
            public void onFailure(Throwable caught) {
                GWT.log(caught.getMessage(), caught);
            }

            @Override
            public void onSuccess(Void result) {
              
            }
        });
    }

public class GridBdEmpresa extends DataGrid<BdEmpresaProxy> {

    private List<BdEmpresaProxy> data = new ArrayList<BdEmpresaProxy>();
    ...


    public List<BdEmpresaProxy> getData() {
        return data;
    }
   
    ....
}


I have in following error:
com.webgocommerce.client.beanproxy.BdEmpresaProxyAutoBean_com_google_web_bindery_requestfactory_shared_impl_EntityProxyCategory_com_google_web_bindery_requestfactory_shared_impl_ValueProxyCategory_com_google_web_bindery_requestfactory_shared_impl_BaseProxyCategory

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