Transform call returns the xslt??

Question

I have a strange problem. After executing a transform, my result is the original template and not the transformed output. I tested the xslt using Altova and it worked fine. When I try making the transform in my java code, I get the problem.
My code is fairly simple...
TransformerFactory tf = TransformerFactory.newInstance();
Templates tmps = tf.newTemplates(auditTemplate); //auditTemple is DOMSource containing the xslt
ByteArrayOutputStream baos = new ByteArrayOutputStream();
StreamResult sr = new StreamResult(baos);
DOMSource src = new DOMSource(resultNode); //result node is my XML Document
Transformer trans = tmps.newTransformer();
trans.transform(src, sr);
return baos.toByteArray(); //this returns the original xslt???Has anyone seen a problem like this? It must be something dumb.

Answer 1

I ran into this problem myself and it took me a while to figure it out:
You need to read the xslt xml with a documentBuilderFactory that is namespace aware;
if not, it will still read the xslt file but without namespaces. When using such
an xslt for transformations, it will no longer act as an xsl transformation, but instead result
in an echo of itself (why it does not throw an error instead I don't know).
DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
-> documentBuilderFactory.setNamespaceAware(true);
DocumentBuilder parser = documentBuilderFactory.newDocumentBuilder();
Document documentWithNamespaces = parser.parse(uri);
The xml file you want to transform can usually still be read by a non-namespace-aware parser, if
it does not depend on namespaces like xslt does.