I'm trying to use the com.sun.star.xml.dom.DocumentBuilder service
but for me it is not working.
The problem is that the xml document do not have an <?xml ...?> processing
instruction in it and it have characters that is encoded in ISO-8859-1
(norwegian characters åæø)
this makes the parse function in the DocumentBuilder service return null
no errors/exceptions or anything just plain null.

this is how I wrote my function

oSFA = createUNOService ("com.sun.star.ucb.SimpleFileAccess")
oInpStream = oSFA.openFileRead(sUrl)
oDB = createUnoService("com.sun.star.xml.dom.DocumentBuilder")
domDoc = oDB.parse(oInpStream)
oInpStream.closeInput

It was suggested that I could perheps try to use the TextInputStream to set the
encoding to ISO-8859-1 and use that instead, but the person that suggested that
now say that it will not work since DocumentBuilder apparently ignores that
information.

oSFA = createUNOService ("com.sun.star.ucb.SimpleFileAccess")
oInpStream = oSFA.openFileRead(sUrl)
oTextInpStream = createUnoService("com.sun.star.io.TextInputStream")
oTextInpStream.setInputStream(oInpStream)
oTextInpStream.setEncoding("iso-8859-1")
oDB = createUnoService("com.sun.star.xml.dom.DocumentBuilder")
domDoc = oDB.parse(oTextInpStream)
oInpStream.closeInput