Support for Asynchronous Requests

<servlet>
    <servlet-name>CXFServlet</servlet-name>
    <display-name>CXF Servlet</display-name>
    <servlet-class>
       org.apache.cxf.transport.servlet.CXFServlet
    </servlet-class>

    <!-- Enable asynchronous requests -->

    <async-supported>true</async-supported>

    <load-on-startup>1</load-on-startup>
</servlet>