Trouble converting an XML doc into a string

Hi,

I'm using Java 1.5, dom4j 1.6, axis 1.4, cglib 2.1_3, and commons-
beanutils 1.7.0. I'm trying to figure out why converting an XML
document to a string is not working. I'm trying to build a very
simple XML doc like so ...

  private Document createXMLDocument(String firstName, String
lastName, String number, String year, String month,
    DocumentBuilderFactory factory =
DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document document = builder.newDocument();

    Element documentRoot = document.createElement("response");
    document.appendChild(documentRoot);
    Element documentElement = document.createElement("firstname");
    documentElement.setTextContent(firstName);
    documentRoot.appendChild(documentElement);
    documentElement = document.createElement("lastname");
    documentElement.setTextContent(lastName);
    documentRoot.appendChild(documentElement);
    documentElement = document.createElement("num");
    documentElement.setTextContent(number);
    documentRoot.appendChild(documentElement);
    documentElement = document.createElement("type");
    documentElement.setTextContent(type);
    documentRoot.appendChild(documentElement);
    documentElement = document.createElement("year");
    documentElement.setTextContent(year);
    documentRoot.appendChild(documentElement);
    documentElement = document.createElement("month");
    documentElement.setTextContent(month);
    documentRoot.appendChild(documentElement);
    return document;
  }

but trying to get the doc as a string produces a partial document
(e.g. "<?xml version="1.0" encoding="UTF-8"?


  private String getXMLString(Document document) throws Exception {
    StringWriter swriter = new StringWriter();
    TransformerFactory tFactory = TransformerFactory.newInstance();
    Transformer transformer = tFactory.newTransformer();
    DOMSource source = new DOMSource(document);
    StreamResult result = new StreamResult(swriter);
    transformer.transform(source, result);
    swriter.close();
    return swriter.toString();
  }

Any ideas why or how to troubleshoot further? Thanks, - Dave