Java EE (Java Enterprise Edition) General Discussion

Hi everybody,
I am modifying an xml file and when I'm saving it standalone attribute apears in xml declaration.
The original xml has the declaration like this:

<?xml version="1.0" encoding="UTF-8"?>

The new xml declaration is:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>

Java code looks like this:

    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    transformer.setOutputProperty(OutputKeys.METHOD,"xml");
    StreamResult output = new StreamResult(new FileWriter(file));
    DOMSource source = new DOMSource(workDocument);
    transformer.transform(source, output);
    output.getWriter().flush();
    output.getWriter().close();

I am using Java 1.6.0.13
Is there any way to remove standalone attribute?