Vaadin 7.2 Push

Vaadin 6 / 7 / 8
1

Hi,

I need show the page loading when the user click in button. I use push but not work, the page loading its not show or show in finish and not show the message.

This my code:

    @Override
    public void actionBotonPresentarRegistrar(ClickEvent event) {
        addValidator();
        if (isFormValid()) {
            UI.getCurrent().setPollInterval(500);            
            loadingView = new LoadingView();
            getNavigator().navigateTo(LoadingView.NAME);
            new LoaderProcces().start();
            
        } else {
            VaadinUtils.notificacionError(Constantes.ERROR_VAL_FORM);
        }
    }

And the code LoaderProcees

[code]
class LoaderProcces extends Thread {

    @Override
    public void run () {
        try {
            UI.getCurrent().access(new Runnable() {
                
                @Override
                public void run() {
                    try {
                        
                        buildPantallaFirma();
                    } catch (Exception e) {
                        logger.error(Constantes.ERROR_FIRMAR, e);
                        solicitudView.setErrorMsg(Constantes.ERROR_DEFAULT);
                        getNavigator().navigateTo(SolicitudView.NAME);
                    }
                    
                }
            });
            
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

[/code]Ths class that load data and show the message for the loading page

    private void buildPantallaFirma () throws Exception {
        Thread.sleep(6000);
        loadingView.setTextoCarga("Validando servicios");
        UI.getCurrent().push();
.....
}

Web.xml
The server when running the app is Weblogic 10.3.6 and it have not support version 3.0 with Asynchronous Support in Servlet.

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">    

.......

<servlet>
        <servlet-name>Vaadin Application Servlet</servlet-name>
        <servlet-class>com.vaadin.server.VaadinServlet</servlet-class>
        <init-param>
            <description>Vaadin UI to display</description>
            <param-name>UI</param-name>
            <param-value>sispecan.sce.formulario.seminormalizado.App</param-value>
        </init-param>        
        <init-param>
            <param-name>widgetset</param-name>
               <param-value>sispecan.sce.formulario.seminormalizado.DefaultWidgetSet</param-value>
        </init-param>
    </servlet>

The UI class

@Theme("sede")
@SuppressWarnings("serial")
@Push(PushMode.AUTOMATIC)
public class App extends AppGeneric {
....
}