How to create java object from 'anyType' returned from service using JAXB?

Question

A web service is returning an object defined by the WSDL to be:

<s:complexType mixed="true"><s:sequence><s:any/></s:sequence></s:complexType> 

When I print out this object's class info, it comes up as:

class com.sun.org.apache.xerces.internal.dom.ElementNSImpl 

But I need to unmarshall this object as an object of the following class:

@XmlAccessorType(XmlAccessType.FIELD)  @XmlType(name = "", propOrder = {         "info",         "availability",         "rateDetails",         "reservation",         "cancellation",         "error" })  @XmlRootElement(name = "ArnResponse")  public class ArnResponse { } 

I know the response is correct, since I know how to marshall this object's XML:

Marshaller m = jc.createMarshaller(); m.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE ); m.marshal(rootResponse, System.out); 

Which prints out:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> <ns2:SubmitRequestDocResponse xmlns:ns2="http://tripauthority.com/hotel">     <ns2:SubmitRequestDocResult>         <!-- below is the object I'm trying to unmarshall -->         <ArnResponse>             <Info />             <Availability>                 <!-- etc-->               </Availability>         </ArnResponse>     </ns2:SubmitRequestDocResult> </ns2:SubmitRequestDocResponse> 

How can I turn the ElementNSImpl object I'm seeing into the ArnResponse object I know it represents?

Additionally, I'm running on AppEngine, where file access is restricted.

Thanks for any help

Update:

I've added the @XmlAnyElement(lax=true) annotation, like so:

  @XmlAccessorType(XmlAccessType.FIELD)   @XmlType(name = "", propOrder = {       "content"   })   @XmlSeeAlso(ArnResponse.class)   public static class SubmitRequestDocResult {      @XmlMixed     @XmlAnyElement(lax = true)     protected List<Object> content; 

But it doesn't make any difference.

Is this something to do with the fact that the content is a List?

Here's the code where I'm trying to access the content after getting it back from the server:

List list = rootResponse.getSubmitRequestDocResult().getContent();  for (Object o : list) {   ArnResponse response = (ArnResponse) o;   System.out.println(response); } 

Which has the output:

Jan 31, 2012 10:04:14 AM com.districthp.core.server.ws.alliance.AllianceApi getRates SEVERE: com.sun.org.apache.xerces.internal.dom.ElementNSImpl cannot be cast to com.districthp.core.server.ws.alliance.response.ArnResponse

Answer:

axtavt's answer did the trick. This worked:

Object content = ((List)result.getContent()).get(0); JAXBContext context = JAXBContext.newInstance(ArnResponse.class); Unmarshaller um = context.createUnmarshaller(); ArnResponse response = (ArnResponse)um.unmarshal((Node)content); System.out.println("response: " + response); 

Answer 1

You can pass that object to Unmarshaller.unmarshal(Node), it should be able to unmarshal it.