Getting ListenerStart error when Deploying Webserices war file on TomCat

[Nageswar Kakolla]

Oct 23, 2009 1:50:41 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/63 config=null
Oct 23, 2009 1:50:41 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1389 ms
Oct 23, 2009 1:50:56 PM org.apache.catalina.core.StandardContext start
SEVERE: Error listenerStart
Oct 23, 2009 1:50:56 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [/Retailer-7.1.0.3] startup failed due to previous errors

I am using Tomcat 6.0.0_20 with JDK 1.6.0.04 and trying to deploy war file.

here is snippet of web.xml

<listener>
<listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class>
</listener>
<display-name>Retailer</display-name>
<servlet>
<servlet-name>jaxws-servlet</servlet-name>
<servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>jaxws-servlet</servlet-name>
<url-pattern>/delta/Retailer</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
</web-app>

and sun-jaxws.xml

<endpoints xmlns='http://java.sun.com/xml/ns/jax-ws/ri/runtime' version='2.0'>
<endpoint
name='NetQualService'
implementation='com.xx.Retailers'
url-pattern='/delta/Retaler'>
<javaee:handler-chains xmlns:javaee="http://java.sun.com/xml/ns/javaee">
<javaee:handler-chain>
<javaee:handler>
<javaee:handler-class>com.xx.handler.RetailerHandler
</javaee:handler-class>
</javaee:handler>
<javaee:handler>
</endpoint>
</endpoints>

Apprecaite any help and i found following link but not quite clear about the solutions,

http://www.nabble.com/SEVERE:-Error-listenerStart-td23642483.html