Saxon

Xquery outputing a complex element does not work with domino, if xml has any attribute that is not namespace aware or its created with a document builder that’s not namespace aware. This seems to be because Node.getlocalName() does not have an implementation for Domino nodes, similar to whats present for TinyTree and DOMWrapper.

DomWrapper:
public static String getLocalName(Node node) {
/* 349 */       String s = node.getLocalName();
/* 350 */       if (s == null) {
/*     */ 
/* 352 */          String n = node.getNodeName();
/* 353 */          int colon = n.indexOf(58);
/* 354 */          return colon >= 0 ? n.substring(colon + 1) : n;
/*     */ 
/*     */ 
/*     */ 
/*     */       } else {
/* 359 */          return s;
/*     */       }
/*     */    }



TinyTree:
 public String getLocalPart() {
/* 176 */       return this.tree.getNamePool().getLocalName(this.tree.attCode[this.nodeNr]);
/*     */    }


Domino:
/*     */    public String getLocalPart() {
/* 214 */       return this.domAttr.getLocalName();
/*     */    }

/**
     * Introduced in DOM Level 2. <p>
     *
     * Returns the local part of the qualified name of this node.
     * For nodes created with a DOM Level 1 method, such as createElement
     * from the Document interface, and for nodes of any type other than
     * ELEMENT_NODE and ATTRIBUTE_NODE this is the same as the nodeName
     * attribute.
     * @since WD-DOM-Level-2-19990923
     * @see AttrNSImpl
     * @see ElementNSImpl
     */
    public String             getLocalName()
    {
        return null;
    }

Example:
public class XqueryTestBug {
	static String htdQuery = "<a>{(.)/htd:task}</a>";
	static boolean useDomino = true;
	public static void main(String argv[]) throws Exception {
		try {
			run(argv[0]);
		} catch (SaxonApiException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	private static void run(String xmlFile) throws SaxonApiException, IOException, Exception {
		// the Saxon processor object
		String 	queryString = htdQuery;
		EnterpriseConfiguration pc = setupSaxonAndGetConfig();
		pc.registerExternalObjectModel(DOMEnvelope.getInstance());
		pc.registerExternalObjectModel(DOMObjectModel.getInstance());

		Processor saxon = new Processor(pc);
		XQueryCompiler compiler = saxon.newXQueryCompiler();
		compiler.declareNamespace("htd", "http://www.example.org/WS-HT");
		compiler.declareNamespace("trt", "http://schemas.active-endpoints.com/b4p/wshumantask/2007/10/aeb4p-task-rt.xsd");
		compiler.declareNamespace("tlc", "http://schemas.active-endpoints.com/b4p/wshumantask/2007/10/aeb4p-task-lifecycle-wsdl.xsd");
		compiler.declareNamespace("sf", "http://schemas.active-endpoints.com/appmodules/screenflow/2010/10/avosScreenflow.xsd");

		XQueryExecutable exec = compiler.compile(queryString);
		XQueryEvaluator query = exec.load();

		//load document
		String input = FileUtils.readFileToString(new File(xmlFile));
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		javax.xml.parsers.DocumentBuilder documentBuilder = factory.newDocumentBuilder();
		InputSource inputSource = new InputSource(new StringReader(input));
		org.w3c.dom.Document doc = documentBuilder.parse(inputSource);

		if(useDomino) {
			DominoTree domTree = DominoTree.makeTree(doc.getDocumentElement().getOwnerDocument(), pc, "systemID");
			SequenceIterator next = domTree.getRootNode().iterateAxis(AxisInfo.CHILD,NodeKindTest.ELEMENT);
			GroundedValue gv = SequenceTool.toGroundedValue(next);
			DominoNode elNode = (DominoNode) gv.itemAt(0);

			query.setContextItem(    (XdmNode) XdmValue.wrap(gv));
		} else {
			TransformerFactory tfactory = new EnterpriseTransformerFactory(pc);
			final Transformer transformer = tfactory.newTransformer();
			PipelineConfiguration pipeconfig = pc.makePipelineConfiguration();
			// set up holder for the output
			final TinyBuilder outputTarget = new TinyBuilder(
					pipeconfig);

			transformer.transform(new DOMSource(doc), outputTarget);

			TinyTree tt = outputTarget.getTree();
			NodeInfo nodeInfo =  tt.getRootNode();
			query.setContextItem(new XdmNode(nodeInfo));
		}

		XdmValue result = query.evaluate();
	}
}

Exception seen with Domino:

Exception in thread "main" java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because the return value of "net.sf.saxon.om.NodeName.getLocalPart()" is null
	at net.sf.saxon.om.NameOfNode.equals(NameOfNode.java:177)
	at net.sf.saxon.om.SingletonAttributeMap.put(SingletonAttributeMap.java:69)
	at net.sf.saxon.om.NodeInfo.attributes(NodeInfo.java:482)
	at net.sf.saxon.tree.util.Navigator.copy(Navigator.java:678)
	at net.sf.saxon.om.NodeInfo.copy(NodeInfo.java:522)
	at net.sf.saxon.event.ComplexContentOutputter.decompose(ComplexContentOutputter.java:893)
	at net.sf.saxon.event.ComplexContentOutputter.append(ComplexContentOutputter.java:658)
	at net.sf.saxon.expr.Expression.lambda$process$0(Expression.java:948)
	at net.sf.saxon.om.SequenceTool.supply(SequenceTool.java:147)
	at net.sf.saxon.expr.Expression.process(Expression.java:948)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:357)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:298)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:142)
	at net.sf.saxon.expr.parser.ExpressionTool.getIteratorFromProcessMethod(ExpressionTool.java:678)
	at net.sf.saxon.expr.instruct.Instruction.iterate(Instruction.java:374)
	at com.saxonica.ee.bytecode.ByteCodeCandidate.iterate(ByteCodeCandidate.java:328)
	at net.sf.saxon.query.XQueryExpression.iterator(XQueryExpression.java:378)
	at net.sf.saxon.s9api.XQueryEvaluator.evaluate(XQueryEvaluator.java:520)
	at XqueryTest.runStatic(XqueryTest.java:474)
	at XqueryTest.run(XqueryTest.java:140)
	at XqueryTest.main(XqueryTest.java:116)