No newlines in DOM serialization

Hi,
I want to serialize a Document object to XML using the following code:
OutputFormat format = new OutputFormat(xhtmlDoc);
format.setIndenting(true);
format.setPreserveSpace(true);
format.setLineSeparator(System.getProperty("line.separator"));
format.setMethod("text/xhtml");
XMLSerializer serial = new XMLSerializer(new BufferedWriter(res.getWriter()), format);
DOMSerializer domserial = serial.asDOMSerializer();
domserial.serialize(xhtmlDoc);
res is a HttpServletResponse object. The serialized XML is submitted to the client and should be pretty printed. What I get is the complete serialize output on a single line.
I'm using Sun's fork of Xerces (embedded in JDK).
What do I have to do?
Thanks!
-Felix

This is just a wild guess, but have you tried
format.setMethod("text/xml"); instead? I have the feeling that XHTML isn't supposed to be indented.

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    m_msec = System.currentTimeMillis() - m_msec;
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    at org.apache.soap.util.xml.XMLJavaMappingRegistry.querySerializer(XMLJa
    vaMappingRegistry.java:157)
    at org.apache.soap.encoding.soapenc.ParameterSerializer.marshall(Paramet
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    at org.apache.soap.rpc.RPCMessage.marshall(RPCMessage.java:265)
    at org.apache.soap.Body.marshall(Body.java:148)
    at org.apache.soap.Envelope.marshall(Envelope.java:203)
    at org.apache.soap.Envelope.marshall(Envelope.java:161)
    at oracle.j2ee.ws.InvocationWrapper.invoke(InvocationWrapper.java:309)
    at oracle.j2ee.ws.RpcWebService.doGetRequest(RpcWebService.java:540)
    at oracle.j2ee.ws.BaseWebService.doGet(BaseWebService.java:1106)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
    at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletReque
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    at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(Ser
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    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpReques
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    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.ja
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    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.ja
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    at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExec
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    at java.lang.Thread.run(Thread.java:484)
    I took much time and couln't get answer ,please help me!!!!!!!!!!!!

    Yeah!
    I have resolved it .
    It take me one day time!
    my error is 1: Element which I used is no namespace.
    2: no import enough jar files
    just so so .
    sorry! I am poor in English

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