Saxon

With the latest Saxon 9.7.0.2, not all the schema validation errors are not reported through the org.xml.sax.ErrorHandler interface. I'm using the SchemaFactory JAXP API for validating an XML instance against an XML Schema .

I can reproduce the problem by running the next Java Class:

public class SchemaValidation {
	/**
	 * Error handler for collecting Saxon validation errors.
	 */
	private static ErrorHandler errorHandler = new ErrorHandler() {
		@Override
		public void warning(SAXParseException we) throws SAXException {
			System.out.println("Warning: " + we);
		}
		@Override
		public void fatalError(SAXParseException fe) throws SAXException {
			System.out.println("Fatal error: " + fe);
		}
		@Override
		public void error(SAXParseException ee) throws SAXException {
			System.out.println("Error: " + ee);
		}
	};

	public static void main(String[] args) throws SAXException, FileNotFoundException, IOException {
		File schemaFile = new File("samples/validation/personal.xsd");
		File xmlFile = new File("samples/validation/personal-schema.xml");
		
		SchemaFactoryImpl schemaFactory = new com.saxonica.ee.jaxp.SchemaFactoryImpl();

		// Set error handler
		schemaFactory.setErrorHandler(errorHandler);

		// Strict schema validation
		schemaFactory.setProperty(FeatureKeys.SCHEMA_VALIDATION, Validation.STRICT);
		Schema schema = schemaFactory.newSchema(schemaFile);
		Validator newValidator = schema.newValidator();
		newValidator.setErrorHandler(errorHandler);
		newValidator.validate(new SAXSource(new InputSource(new FileInputStream(xmlFile))));
	}
}

In my case, only one error is reported through ErrorHandler:

One or more validation errors were reported

The other errors are only visible in the console (System.err) without being reported through the error handler.