Error using XMLType.transform() parammap argument

Question

Hello;
I've hit a snag trying to pass top-level XSLT parameter via XMLType.transform's parammap argument.
Whenever I run the code sample at the end of this message on 9.2.0.1.0, I get the following error:
ORA-00600: internal error code, arguments: [KGHAL02], [0x0], [], [], [], [], [], []
This error does not occur if you remove the 'name=value' parammap value.
Any ideas?
Brian.
set serveroutput on
declare
     stylesheet xmltype;
     result xmltype;
     xmldoc xmltype;
begin
     stylesheet := XMLType(
'<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>
<xsl:param name="name"/>
<xsl:output
method="xml"
/>
<xsl:template match="hello" >
     <xsl:value-of select="text()"/>
</xsl:template>
</xsl:stylesheet>'
     xmldoc := XMLType('<hello>world </hello>');
     result := xmldoc.transform(stylesheet,'name=value');
     dbms_output.put_line(result.getStringVal());
end;
/

Answer 1

I've worked around this bug successfully by using dbms_xslprocessor package directly - but yuck. The dbms_xslprocessor and related packages is pretty messy to work with.
I also ran into problems implementing the workaround as dbms_xmldom.getDocumentElement could not find the root element on the resulting DOMDocumentFragment (converted appropriately using dbms_xmldom.makeDocument - sigh). I had to write the fragment (converted to a node first using dbms_xmldom.makeNode - heavy sigh) to a clob (dbms_xmldom.writeToClob), and then reload it using dbms_xmldom.newDOMDocument). Not to mention having to remember to freeXXX all the things I had to create.
Gross... 4 times the code with lots more opportunities for bugs & leaks.
Brian.