Serializing a doctype specification

[Wiedmann, Jochen]

Hello,

the question may be stupid, but how do I create a doctype specification in
a serialized document? Here's what I do, I'd expect to see a doctype
declaration in the output, but I only get XML declaration and document.

Thanks,

Jochen


  public class domtest {
    public static void main (String args[]) throws java.io.IOException {
        org.apache.xerces.dom.DocumentImpl myDoc =
            new org.apache.xerces.dom.DocumentImpl();
        org.w3c.dom.DocumentType dt =
            new org.apache.xerces.dom.DocumentTypeImpl(myDoc, "dibob", null,
                                                       "dibob.dtd");
        myDoc.appendChild(dt);
        myDoc.appendChild(myDoc.createElement("dibob"));

        org.apache.xml.serialize.OutputFormat oformat =
            new org.apache.xml.serialize.OutputFormat("XML", "iso-8859-1",
                                                      true);
        oformat.setDoctype(null, "dibob.dtd");
        oformat.setStandalone(false);

        org.apache.xml.serialize.XMLSerializer serializer =
            new org.apache.xml.serialize.XMLSerializer(oformat);
        serializer.setOutputCharStream(new java.io.PrintWriter(System.out));
        serializer.serialize(myDoc);
    }
  }