JAXB unmarshal with declared type does not populate the resulting object with data

Question

I am trying to unmarshal a given XML:

 rewriting of file
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Answer 1

Your XML document does not match the namespace qualification that was defined in your mappings (see: http://blog.bdoughan.com/2010/08/jaxb-namespaces.html). You could leverage an XMLFilter to apply a namespace to your XML document during the unmarshal operation.

import org.xml.sax.*;
import org.xml.sax.helpers.XMLFilterImpl;

public class NamespaceFilter extends XMLFilterImpl {

    private static final String NAMESPACE = "htp://www.example.com/mdf/v4";

    @Override
    public void endElement(String uri, String localName, String qName)
            throws SAXException {
        super.endElement(NAMESPACE, localName, qName);
    }

    @Override
    public void startElement(String uri, String localName, String qName,
            Attributes atts) throws SAXException {
        super.startElement(NAMESPACE, localName, qName, atts);
    }

}

Below is an example of how you would leverage the XMLFilter during an unmarshal.

    // Create the XMLFilter
    XMLFilter filter = new NamespaceFilter();

    // Set the parent XMLReader on the XMLFilter
    SAXParserFactory spf = SAXParserFactory.newInstance();
    SAXParser sp = spf.newSAXParser();
    XMLReader xr = sp.getXMLReader();
    filter.setParent(xr);

    // Set UnmarshallerHandler as ContentHandler on XMLFilter
    Unmarshaller unmarshaller = jc.createUnmarshaller();
    UnmarshallerHandler unmarshallerHandler = unmarshaller
            .getUnmarshallerHandler();
    filter.setContentHandler(unmarshallerHandler);

    // Parse the XML
    InputSource xml = new InputSource("input.xml");
    filter.parse(xml);
    Object result = unmarshallerHandler.getResult();

For More Information

• http://blog.bdoughan.com/2012/11/applying-namespace-during-jaxb-unmarshal.html