[xfire-user] Problems developing a SOAP-Client

[Nicolas Kukolja]

Hello,   I am trying to develop some webservices using xfire, and most works very well, but my client will not work.   First, I used the bookservice example with its three methods: getBooks(), findBook(isbn), getBooksMap().   Using Soap-UI I can call all three methods well and the correct values return, but with the client, the array that is returned by getBooks() is empty, and the method getBooksMap() ends in a “org.codehaus.xfire.XFireRuntimeException: Could not invoke service.. Nested exception is org.codehaus.xfire.fault.XFireFault: Fault: java.lang.NullPointerException”.   There seems to be something wrong with the more complex data types I think. Creating a simple method in the service returning a string works fine.   Can someone help me or give me a hint of what to do?   Thanks for reading,   Nick           PS: “My” client-code (its mostly from the example…):       package service.test;   import java.net.MalformedURLException; import java.util.Map;   import org.codehaus.xfire.client.Client; import org.codehaus.xfire.client.XFireProxyFactory; import catega.test.OutHeaderHandler; import org.codehaus.xfire.service.Service; import org.codehaus.xfire.service.binding.ObjectServiceFactory;   /**  * @author <a href="" PROTECTED]">Nathan Peles</a>  * @author <a href="" PROTECTED]">Tomasz Sztelak</a>  */ public class BookClient {     public static void main(String args[])     {         String serviceURL = "http://localhost:8080/book/services/BookService";         Service serviceModel = new ObjectServiceFactory().create(BookService.class,null,"http://xfire.codehaus.org/BookService",null);                 XFireProxyFactory serviceFactory = new XFireProxyFactory();                 try         {             BookService service = (BookService) serviceFactory.create(serviceModel, serviceURL);             Client client = Client.getInstance(service);             client.addOutHandler(new OutHeaderHandler());             Book[] books = service.getBooks();             Map booksMap = service.getBooksMap();             System.out.print("Received map with "+booksMap.size()+" book(s) \n");             System.out.println("BOOKS:");                         for (int i = 0; i < books.length; i++)             {                 System.out.println(books[i].getTitle());             }         }         catch (MalformedURLException e)         {             e.printStackTrace();         }     } }