Vaadin 7.3.3 powered by WildFly 8.1.0.Final

Hello!
I have the maven generated project (https://vaadin.com/wiki/-/wiki/Main/Creating+a+Maven+project)

import javax.servlet.annotation.WebServlet;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;

@Theme("mytheme")
@SuppressWarnings("serial")
public class MyVaadinUI extends UI
{

    @WebServlet(value = "/*", asyncSupported = true)
    @VaadinServletConfiguration(productionMode = false, ui = MyVaadinUI.class, widgetset = "my.vaadin_application.AppWidgetSet")
    public static class Servlet extends VaadinServlet {
    }

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);
        
        Button button = new Button("Click Me 1");
        button.addClickListener(new Button.ClickListener() {
            public void buttonClick(ClickEvent event) {
                layout.addComponent(new Label("Thank you for clicking"));
            }
        });
        layout.addComponent(button);
    }

}

I try to run on WildFly 8.1.0.Final. Everything is ok except the following warning:

23:00:54,809 WARNING [org.atmosphere.cpr.AtmosphereFramework] (default task-1) SessionSupport error. Make sure you define org.atmosphere.cpr.SessionSupport as a listener in web.xml instead 23:00:54,820 INFO [org.atmosphere.cpr.AtmosphereFramework] (default task-1) Atmosphere is using org.atmosphere.cpr.DefaultAnnotationProcessor for processing annotation 23:00:54,822 INFO [org.atmosphere.cpr.DefaultAnnotationProcessor] (default task-1) AnnotationProcessor class org.atmosphere.cpr.DefaultAnnotationProcessor$ServletContainerInitializerAnnotationProcessor being used 23:00:54,824 WARNING [org.atmosphere.cpr.DefaultAnnotationProcessor] (default task-1) Unable to detect annotations. Application may fail to deploy. What does “SessionSupport error. Make sure you define org.atmosphere.cpr.SessionSupport as a listener in web.xml instead” mean?

Here is full log http://files.rsdn.ru/12237/log.txt

Thanks in advance.
BR,
AnatolyS

I found the description of this warning: https://github.com/Atmosphere/atmosphere/wiki/Enabling-HttpSession-Support

Should I do anything to fix it?