try {
TransformerFactory xformFactory = TransformerFactory.newInstance();
Source xsl = new StreamSource("stylesheet.xsl");
Transformer stylesheet = xformFactory.newTransformer(xsl);
Source request = new StreamSource(in);
Result response = new StreamResult(out);
stylesheet.transform(request, response);
}
catch (TransformerException e) {
System.err.println(e);
}