WEB SERVICE Soup Erro HTTP Status 404 – Not Found -

Programação Java
#1

Amigos,

criei um Web service para estudo mas esta dando o erro HTTP Status 404 – Not Found

segue o codigo fonte para ajuda

Interface

@WebService
@SOAPBinding(style = Style.RPC)
public interface XportServiceWS {

@WebMethod String getHelloWorldAsString();

}

Implementação.

@WebService(endpointInterface = “br.com.xportservice.services.XportServiceWS”)
public class XportServiceWSImpl implements XportServiceWS{

@Override
public String getHelloWorldAsString() {
	return "Hello World JAX-WS";
}

}

Arquivo sun-jaxws.xml

   <?xml version="1.0" encoding="UTF-8"?>
<endpoints
  xmlns="http://java.sun.com/xml/ns/jax-ws/ri/runtime"
  version="2.0">
  <endpoint name="HelloWorld" implementation="br.com.xportservice.services.XportServiceWSImpl" url-pattern="/hello"/>
</endpoints>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, 
Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">

<web-app>
    <listener>
        <listener-class>
        	com.sun.xml.ws.transport.http.servlet.WSServletContextListener
        </listener-class>
    </listener>
    <servlet>
        <servlet-name>hello</servlet-name>
        <servlet-class>
        	com.sun.xml.ws.transport.http.servlet.WSServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>hello</servlet-name>
        <url-pattern>/hello</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>120</session-timeout>
    </session-config>
</web-app>