[xsl] <xsl:output doctype-public="?">

Subject: [xsl] <xsl:output doctype-public="?">
From: Edierley Messias <edierley@xxxxxxxxxxx>
Date: Mon, 29 Jan 2001 18:10:20 -0200 (EDT)
Hi people,
I apologize if this a little off-topic, but I think that is XSL email, is
about the Xalan processor.
- - - - - - -
There is a error when I apply the transformation to a XSL that have a
<xsl:output doctype-public="?"> declaration in a Servlet program.

My final document must have the 

And XALAN/Xerces changes the the <!DOCTYPE> to the comment version of the
respective DTD in http://www.wapforum.org/DTD/wml_1.1.xml

Then I wrote the XSL with
<xsl:output method="xml"
  doctype-public="-//WAPFORUM//DTD WML 1.1//EN"

My Servlet is OK, when I apply the WML page to a xsl without the
<xsl:output method="?"> the transformation works, but the page cannot be
appear in the mobile-browser withou the <!DOCTYPE> declaration.
The page look like:
<?xml version="1.0"?>
<!--DTD commented-->

When I run the Servlet with the <xsl:output> file, the server gives me
"500 Internal Server Error".

I looked at jserv.log file and a found this (WapServlet is my servlet):
[29/01/2001 17:39:30:146 GMT-02:00] java.lang.NullPointerException
	at org.apache.xalan.xslt.StylesheetRoot.makeSAXSerializer(StylesheetRoot.java:518)
	at org.apache.xalan.xslt.StylesheetRoot.process(StylesheetRoot.java:380)
	at org.apache.xalan.xslt.XSLTEngineImpl.process(XSLTEngineImpl.java:679)
	at WapServlet.doGetHTTP(WapServlet.java:72)
	at WapServlet.service(WapServlet.java:46)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:309)
	at org.apache.jserv.JServConnection.processRequest(JServConnection.java:314)
	at org.apache.jserv.JServConnection.run(JServConnection.java:188)
	at java.lang.Thread.run(Thread.java:484)

What is the problem? There is a bug in StylesheetRoot or XSLTEngineImpl?

The program below works fine with the <xsl:output> file.

public class SimpleWML{
    public static void main() ...{
        XSLTProcessor processor = XSLTProcessorFactory.getProcessor();
        processor.process(new XSLTInputSource("i.wml"), new XSLTInputSource("text7.xsl"), new XSLTResultTarget(System.out));

And also the command line:
"java org.apache.xalan.xslt.Process -in i.wml -xsl text7.xsl"

Please, do you know what is going on?

Edierley Messias.

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