On server side, I changed the style annotation of my service: from RPC to DOCUMENT. The client side stopped working. When I first started writing this post, I found teh client side imports javax.xml.rpc.*. i searched through J2EE API and there is no javax.xml.document.

How should I modify my client code? Why is the API's not consistent for those two styles?

package org.jboss.tutorial.webservice.client;

import org.jboss.tutorial.webservice.bean.Calculator;

import javax.xml.namespace.QName;
import javax.xml.rpc.Service;
import javax.xml.rpc.ServiceFactory;
import java.net.URL;
import java.io.File;

public class Client
{
 public static void main(String[] args) throws Exception
 {
 URL url = new URL("http://localhost:8080/tutorial/CalculatorBean?wsdl");

 ServiceFactory factory = ServiceFactory.newInstance();
 Service service = factory.createService(url, null);

 Calculator calculator = (Calculator) service.getPort(Calculator.class);

 System.out.println("" + calculator.add(Integer.parseInt(args[0]), Integer.parseInt(args[1]), args[2]));
 System.out.println("" + calculator.subtract(Integer.parseInt(args[0]), Integer.parseInt(args[1])));
 }
}