hi all,
i am trying to develop a plugin for geoserver and followed the guide to
writing plugins

http://geoserver.org/display/GEOSDOC/3+A+Simple+PlugIn

but it is not working
when i give the url
http://localhost:8080/geoserver/ows?request=sayHello&service=hello&version=1.0.0
i get following error message
06 Mar 01:45:05 WARN [geoserver.ows] -
org.geoserver.platform.ServiceException: No service : (hello)
at org.geoserver.ows.Dispatcher.findService(Dispatcher.java:690)
at org.geoserver.ows.Dispatcher.service(Dispatcher.java:331)
.
.
.
.
.
.

the class code is

package org.geoserver.hello;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloWorld {

        public HelloWorld() {
                // Do nothing
        }

        public void sayHello(HttpServletRequest request, HttpServletResponse 
response)
        throws ServletException, IOException {
                response.getOutputStream().write( "Hello World".getBytes() );
        }
}


and the applicationContext is
<beans>
        <bean id="helloService" class="org.geoserver.HelloWorld">
        </bean>


        <bean id="helloService-1.0.0" class="org.geoserver.platform.Service">
                
                <constructor-arg index="0" value="hello"/>
                <constructor-arg index="1" ref="helloService"/>

               <constructor-arg index="2" value="1.0.0"/>
        </bean>
</beans>

please give me some suggestions i am just stuck in this point
thanks in advance
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