Output a new line after the XML declaration using indent="yes"

[s7an10]

[resending my original message as it didn't appear in the list, 
trying out 4 times.]

Using the example serialization code (see at the end) and the 
built-in Sun's Java 1.4 JAXP implementation I get a result file:

<?xml version="1.0" encoding="UTF-8"?>
<doc>
  <para>foo bar</para>
</doc>

However when I plug-in Xalan 2.7.1 I get a result file:

<?xml version="1.0" encoding="UTF-8"?><doc>
  <para>foo bar</para>
</doc>

Is there a way to make the document element appear on a new line 
after the XML declaration when using the indent="yes" output option?

-----XMLSerializationTest.java
import java.io.File;
import java.io.FileOutputStream;

import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXTransformerFactory;
import javax.xml.transform.sax.TransformerHandler;
import javax.xml.transform.stream.StreamResult;

import org.xml.sax.Attributes;
import org.xml.sax.helpers.AttributesImpl;

public class XMLSerializationTest
{

    static final String XALAN_INDENT_AMOUNT =
            "{http://xml.apache.org/xslt}"; + "indent-amount";

    public static void main(String[] args) throws Exception
    {
        File resultFile = new File("test.xml");

        SAXTransformerFactory stf = (SAXTransformerFactory)
                TransformerFactory.newInstance();
        TransformerHandler handler = stf.newTransformerHandler();
        Transformer transformer = handler.getTransformer();
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(XALAN_INDENT_AMOUNT, "2");
        handler.setResult(new StreamResult(
                new FileOutputStream(resultFile)));

        Attributes noAtts = new AttributesImpl();
        String text = "foo bar";
        handler.startDocument();
        handler.startElement("", "", "doc", noAtts);
        handler.startElement("", "", "para", noAtts);
        handler.characters(text.toCharArray(), 0, text.length());
        handler.endElement("", "", "para");
        handler.endElement("", "", "doc");
        handler.endDocument();

        System.out.println("Done.");
    }

}
-----XMLSerializationTest.java--

--
Stanimir