spring integration

I am trying to integrate spring in my Vaadin application.
I am using vaadin multi-prject demo application (backend, ui, production and widgset)
WildFly start correctly but I’ve the erro: Request was not handled by any registered handler.

can someone help me ?

My UI class:
@SpringUI(path = “/*”)
public class MyOpenChatUI extends UI {

private AccessControl accessControl = new BasicAccessControl();

protected void init(VaadinRequest vaadinRequest) {

public static class MyContextLoaderListener extends ContextLoaderListener {


public static class MyConfiguration {
    public DataService dataService () {
        return new DataServiceImpl();

@WebServlet(urlPatterns = "/*", name = "MyOpenChatUIServlet", asyncSupported = true)
public static class MyOpenChatUIServlet extends SpringVaadinServlet  {


My applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>

<bean class="net.teamteck.MyOpenChat.MyOpenChatUI.MyConfiguration" />
<!-- <context:component-scan base-package="net.teamteck.MyOpenChat" /> -->

Can you set a breakpoint in the method “init” of class “MyOpenChatUI”?
So you can check if this method is executed.

And, create a constructor for this class, and set a breakpoint in it, to check if this class is created

<!-- <context:component-scan base-package="net.teamteck.MyOpenChat" /> -->

You commented out this line,
I guess that maybe the Spring “component-scan” function is not working,
so, your UI class will not be recognized as a Bean, and not be created automatically,
and of course, it can not handle your http request