Saxon

Try selector.getUnderlyingXPathContext().setErrorListener()

Tried but unfortunately not working.

When putting breakpoints on constructor and all methods in the LocalErrorListener-class the only stop is in the constructor.

	private boolean isDeepEqual(XdmNode node1, XdmNode node2) throws SaxonApiException {
		XPathCompiler xpath = processor.newXPathCompiler();
		ItemTypeFactory itf = new ItemTypeFactory(processor);
		ItemType decimalType = itf.getAtomicType(new QName("http://www.w3.org/2001/XMLSchema", "decimal"));
		xpath.declareVariable(new QName("urn:us:xpath:var", "node1"));
		xpath.declareVariable(new QName("urn:us:xpath:var", "node2"));
		xpath.declareNamespace("vmgv", "urn:us:xpath:var");
		xpath.declareNamespace("saxon", "http://saxon.sf.net/");
		XPathExecutable xx = xpath.compile("saxon:deep-equal($vmgv:node1, $vmgv:node2, () ,'w?')");

		XPathSelector selector = xx.load();
		selector.getUnderlyingXPathContext().setErrorListener(new LocalErrorListener());
		selector.setVariable(new QName("urn:us:xpath:var", "node1"), node1);
		selector.setVariable(new QName("urn:us:xpath:var", "node2"), node2);

		XdmAtomicValue deepEqualResult = (XdmAtomicValue) selector.evaluateSingle();
		return deepEqualResult.getBooleanValue();
	}

	private class LocalErrorListener implements UnfailingErrorListener {
		private final StringBuilder errors;

		LocalErrorListener() {
			errors = new StringBuilder();
		}

		@Override
		public void warning(TransformerException e) {
			errors.append(e.getMessage());
		}

		@Override
		public void error(TransformerException e) {
			errors.append(e.getMessage());
		}

		@Override
		public void fatalError(TransformerException e) {
			errors.append(e.getMessage());
		}

		public String getErrors() {
			return errors.toString();
		}
	}

It turns out the warnings are always going to the ErrorListener associated with the Configuration. So it will have to be processor.getUnderlyingConfiguration().setErrorListener(....)

Unfortunately this sets the ErrorListener globally which isn't ideal.

I have patched DeepEqual() to use the ErrorListener from the XPathContext rather than from the Configuration. Unfortunately this changes the interface to DeepEqual.deepEquals() which is a public method that some users might be using.

Thank you Michael. I will look into the processor.getUnderlyingConfiguration().setErrorListener(....) . And nice you gone further for 10.0. What will be de release date for that?