Bean not passed to web service (SOAP / Apache CXF)

[Stephane Eybert]

Hello,

I'm trying to pass a bean as an argument to a web service, but I get a NPE when trying to use the bean on the server side.

Here is the exception:

stephane@stephane-ThinkPad-X60:simplews> java -cp server/target/simplews-server-1.0-SNAPSHOT.jar no.nki.simplews.server.utils.Server
Starting Server
Jan 30, 2012 2:20:08 PM com.sun.xml.internal.ws.model.RuntimeModeler getRequestWrapperClass
INFO: Dynamically creating request wrapper Class no.nki.simplews.server.service.jaxws.SayHello
Jan 30, 2012 2:20:08 PM com.sun.xml.internal.ws.model.RuntimeModeler getResponseWrapperClass
INFO: Dynamically creating response wrapper bean Class no.nki.simplews.server.service.jaxws.SayHelloResponse
Jan 30, 2012 2:20:08 PM com.sun.xml.internal.ws.model.RuntimeModeler getRequestWrapperClass
INFO: Dynamically creating request wrapper Class no.nki.simplews.server.service.jaxws.SayHelloToAdmin
Jan 30, 2012 2:20:08 PM com.sun.xml.internal.ws.model.RuntimeModeler getResponseWrapperClass
INFO: Dynamically creating response wrapper bean Class no.nki.simplews.server.service.jaxws.SayHelloToAdminResponse
Server ready...
sayHello called
sayHiToAdmin called
Jan 30, 2012 2:20:10 PM com.sun.xml.internal.ws.server.sei.EndpointMethodHandler invoke
SEVERE: null
java.lang.NullPointerException
at no.nki.simplews.server.service.impl.HelloServiceImpl.sayHelloToAdmin(HelloServiceImpl.java:20)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.xml.internal.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:235)
at com.sun.xml.internal.ws.server.InvokerTube$2.invoke(InvokerTube.java:135)
at com.sun.xml.internal.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:246)
at com.sun.xml.internal.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:82)
at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:587)
at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:546)
at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:531)
at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:428)
at com.sun.xml.internal.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:232)
at com.sun.xml.internal.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:460)
at com.sun.xml.internal.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:233)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handleExchange(WSHttpHandler.java:95)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handle(WSHttpHandler.java:80)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:65)
at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:65)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:68)
at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:554)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:65)
at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:526)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Server exiting

The code is some simple tutorial example I'm trying to get running:

package no.nki.simplews.server.domain.impl;

import javax.xml.bind.annotation.XmlType;

@XmlType(name = "no.nki.simplews.server.domain.Admin")
public class AdminImpl implements Admin {

	private String email;
	private String firstname;
	private String lastname;
	private String login;
	private String password;

	public AdminImpl() {
	}

	public AdminImpl(String email, String firstname, String lastname, String login, String password) {
		this.email = email;
		this.firstname = firstname;
		this.lastname = lastname;
		this.login = login;
		this.password = password;
	}

	public String getFirstname() {
		return this.firstname;
	}

	public void setFirstname(String firstname) {
		this.firstname = firstname;
	}

	public String getLastname() {
		return this.lastname;
	}

	public void setLastname(String lastname) {
		this.lastname = lastname;
	}

	public String getLogin() {
		return this.login;
	}

	public void setLogin(String login) {
		this.login = login;
	}

	public String getPassword() {
		return this.password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	public String getEmail() {
		return this.email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

}

package no.nki.simplews.server.domain;

import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;

@XmlJavaTypeAdapter(AdminAdapter.class)
public interface Admin {

	public String getFirstname();

	public String getLastname();

	public String getLogin();

	public String getPassword();

	public String getEmail();

}

package no.nki.simplews.server.domain.adapter;

import javax.xml.bind.annotation.adapters.XmlAdapter;

public class AdminAdapter extends XmlAdapter<AdminImpl, Admin> {

	public AdminImpl marshal(Admin admin) throws Exception {
		if (admin instanceof AdminImpl) {
			return (AdminImpl) admin;
		}
		AdminImpl adminImpl = new AdminImpl();
		adminImpl.setEmail(admin.getEmail());
		adminImpl.setFirstname(admin.getFirstname());
		adminImpl.setLastname(admin.getLastname());
		adminImpl.setLogin(admin.getLogin());
		adminImpl.setPassword(admin.getPassword());
		return adminImpl;
	}

	public Admin unmarshal(AdminImpl adminImpl) throws Exception {
		return null;
	}

}

package no.nki.simplews.server.service.impl;

import javax.jws.WebService;

@WebService(endpointInterface = "no.nki.simplews.server.service.HelloService", name = "MyHelloService", targetNamespace="example")
public class HelloServiceImpl implements HelloService {

	@Override
	public String sayHello(String text) {
		System.out.println("sayHello called");
		return "Hellooo " + text;
	}

	@Override
	public String sayHelloToAdmin(Admin admin) {
        System.out.println("sayHiToAdmin called");
        return "Hellooo "  + admin.getFirstname();
	}

}

package no.nki.simplews.server.utils;

import javax.xml.ws.Endpoint;

public class Server {

    protected Server() throws Exception {
        System.out.println("Starting Server");
        HelloServiceImpl helloServiceImpl = new HelloServiceImpl();
        String address = "http://localhost:9000/test?wsdl";
        Endpoint.publish(address, helloServiceImpl);
    }
    
    // To start the server: java -cp server/target/simplews-server-1.0-SNAPSHOT.jar no.nki.simplews.server.utils.Server
    public static void main(String args[]) throws Exception {
        new Server();
        System.out.println("Server ready...");
        Thread.sleep(5 * 60 * 1000);
        System.out.println("Server exiting");
        System.exit(0);
    }

}

package no.nki.simplews.client.utils;

import java.net.URL;

public final class Client {

	private static final QName SERVICE_NAME = new QName("example", "HelloServiceImplService");

	private Client() {
	}

	// To start the client: java -cp server/target/simplews-server-1.0-SNAPSHOT.jar:client/target/simplews-client-1.0-SNAPSHOT.jar no.nki.simplews.client.utils.Client
	public static void main(String args[]) throws Exception {
		URL wsdlURL = new URL("http://localhost:9000/test?wsdl");

		Service service = Service.create(wsdlURL, SERVICE_NAME);
		HelloService helloService = service.getPort(HelloService.class);
		System.out.println(helloService.sayHello("World"));
		Admin admin = new AdminImpl("[e-mail]", "Stephane", "Eybert", "stephane", "mypass");
		System.out.println("The admin is: " + admin.getFirstname());
		System.out.println(helloService.sayHelloToAdmin(admin));
	}

}

Any clue ?

Thanks.

Stephane

[Stephane Eybert]

The mistake was to return null in

    public Admin unmarshal(AdminImpl adminImpl) throws Exception {  
        return null;  
    }  

instead of the object

    public Admin unmarshal(AdminImpl adminImpl) throws Exception {  
        return adminImpl;  
    }