XML : Can't unmarshal marshalled document when default namespace used

I try to unmarshal a simple xml document:

  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>  <for:document xmlns:for="http://www.adcubum.com/wsdl/global/callout/syrius/modul_bl/doc/service/documentrenderer/forwktbx">       <Export xmlns="urn:adcubum:Syrius">           <ExportInhalt/>           <ExportKopf>               <Quelle>lokal</Quelle>           </ExportKopf>           <SchemaVersion>bec811a9807a8c8da403d70b9b5e22ad</SchemaVersion>       </Export>  </for:document>    

This is the document I get from following code:

      Document document = new Document();      Export export = new Export();      ExportKopf exportKopf = new ExportKopf();      exportKopf.setQuelle("lokal");      export.setExportKopf(exportKopf);      ExportInhalt exportInhalt = new ExportInhalt();      export.setExportInhalt(exportInhalt);      export.setSchemaVersion("bec811a9807a8c8da403d70b9b5e22ad");      document.setExport(export);        JAXBContext jaxbContext = JAXBContext.newInstance(Document.class);      Marshaller marshaller = jaxbContext.createMarshaller();      marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);      marshaller.marshal(document, System.out);    

Document looks as follows:

  @XmlAccessorType(XmlAccessType.FIELD)  @XmlRootElement(name = "document", namespace = "http://www.adcubum.com/wsdl/global/callout/syrius/modul_bl/doc/service/documentrenderer/forwktbx")  public class Document {        @XmlElement(name = "Export", namespace = "urn:adcubum:Syrius")      private vo.dom.common_service.modul_bl.syrius.Export export;    }    

package-info.java

  @XmlSchema(  namespace = "urn:adcubum:Syrius",  xmlns = {      @XmlNs(prefix = "for", namespaceURI = "http://www.adcubum.com/wsdl/global/callout/syrius/modul_bl/doc/service/documentrenderer/forwktbx"),      @XmlNs(prefix = "", namespaceURI = "urn:adcubum:Syrius")  },   elementFormDefault = XmlNsForm.UNQUALIFIED)    

When I try to unmarshal it, I don't get the data mapped:

      JAXBContext jaxbContext = JAXBContext.newInstance(Document.class);      Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();        InputStream is = this.getClass().getResourceAsStream("/requests/document_simple3.xml");      XMLInputFactory factory = XMLInputFactory.newInstance();      XMLStreamReader xmlsr = factory.createXMLStreamReader(is);        Document document = unmarshaller.unmarshal(xmlsr, Document.class).getValue();    

ExportKopf and ExportInhalt are returning null.

Instead following xml works. The only difference is the namespace prefix:

  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>  <for:document xmlns:for="http://www.adcubum.com/wsdl/global/callout/syrius/modul_bl/doc/service/documentrenderer/forwktbx">      <ns3:Export xmlns:ns3="urn:adcubum:Syrius">          <ExportInhalt/>          <ExportKopf>              <Quelle>lokal</Quelle>          </ExportKopf>          <SchemaVersion>bec811a9807a8c8da403d70b9b5e22ad</SchemaVersion>      </ns3:Export>  </for:document>    

I am using eclipselink moxy.

What do I have to change, so that unmarshaling the marshaled document works.