Validate XML Against XSD

Question

Looking for some confirmation that the below is the most efficient Java solution to validate a XML String against a schema. Any other ways which are more efficient memory or performance wise?

private boolean isXMLValid(String XSDPath, String XML) {
        final SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        try {
            final Schema schema = factory.newSchema(new File(XSDPath));
            final Validator validator = schema.newValidator();
            validator.validate(new StreamSource(new ByteArrayInputStream(XML.getBytes())));
        } catch (IOException | SAXException e) {
            System.out.println("Exception: " + e.getMessage());
            return false;
        }
        return true;
    }

Answer 1

Hardly. You may get some minor improvements by reusing SchemaFactory (attention: not thread-safe) and Schema (immutable, thread-safe), but it's almost it. If you switch from String XML to something more streamy and use StAX you may get some memory improvements as well.