stateless session as a webservice

[vitesse wei]

I write a EJB3 stateless session bean as a webservice deployed in glassfish,but when i run my test client,it give's me error message like this,search a lot,still can not fix it.
here is the code
HelloForWS.java

package com.interlink.ejb;
 
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebService;
 
@Stateless
@WebService(serviceName="Greeter",portName="GreeerrPort")
public class HelloForWS implements HelloForWSRemote {
 
@WebMethod
public String hello() {
return "Hello,world";
}
}

HelloForWSRemote.java

package com.interlink.ejb;
 
import javax.ejb.Remote;
 
@Remote
public interface HelloForWSRemote {
public String hello();
}

here is the client
JAXWSClient.java

package com.interlink.ejb;
 
import java.net.MalformedURLException;
import java.net.URL;
 
import javax.xml.namespace.QName;
import javax.xml.ws.Service;
 
import com.interlink.ejb.HelloForWS;
 
public class JAXWSClient {
static String host = "localhost";
static String portType = "HelloForWS";
static String serviceName = "Greeter";
static String serviceEndpointAddress = "Http://" + host + ":8080/"
+ serviceName;
static String nameSpace = "http://ejb.interlink.com/"; // last forward
// slash is a must
 
/**
 * @param args
 * @throws MalformedURLException
 */
public static void main(String[] args) throws MalformedURLException {
URL wsdlLocation = new URL(serviceEndpointAddress + "/" + portType
+ "?WSDL");
QName serviceNameQ = new QName(nameSpace, serviceName);
 
Service service = Service.create(wsdlLocation, serviceNameQ);
HelloForWS firstGreeterPort = service.getPort(HelloForWS.class);
System.out.println("1:" + firstGreeterPort.hello());
 

}
 
}

error message from run JAXWSClient

Exception in thread "main" com.sun.xml.ws.model.RuntimeModelerException: runtime modeler error: Wrapper class com.interlink.ejb.jaxws.Hello is not found. Have you run APT to generate them?
at com.sun.xml.ws.model.RuntimeModeler.getClass(RuntimeModeler.java:249)
at com.sun.xml.ws.model.RuntimeModeler.processDocWrappedMethod(RuntimeModeler.java:545)
at com.sun.xml.ws.model.RuntimeModeler.processMethod(RuntimeModeler.java:492)
at com.sun.xml.ws.model.RuntimeModeler.processClass(RuntimeModeler.java:334)
at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:220)
at com.sun.xml.ws.client.WSServiceDelegate.addSEI(WSServiceDelegate.java:588)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:291)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:274)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:302)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:306)
at javax.xml.ws.Service.getPort(Service.java:161)
at com.interlink.ejb.JAXWSClient.main(JAXWSClient.java:29)

[vitesse wei]

I find com.interlink.ejb.jaxws.Hello wraper class in glassfish's generated directory,then I added it to the classpath,then runclient,I get new error as
follow:

Exception in thread "main" java.lang.IllegalArgumentException: com.interlink.ejb.HelloForWS is not an interface
at java.lang.reflect.Proxy.getProxyClass(Proxy.java:362)
at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:581)
at com.sun.xml.ws.client.WSServiceDelegate.createEndpointIFBaseProxy(WSServiceDelegate.java:546)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:292)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:274)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:302)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:306)
at javax.xml.ws.Service.getPort(Service.java:161)
at com.interlink.ejb.client.JAXWSClient.main(JAXWSClient.java:33)

com.interlink.ejb.HelloForWS is a bean class,it's not interface,I don't know why it ask for a interface?
add i checked server console,webservice is there and can be tested by admin console,anybody help