private static void validateSchema(Document document, String schemaFilePath) throws ValidateXMLSchemaException { // create a SchemaFactory capable of understanding WXS schemas SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI); // load a WXS schema, represented by a Schema instance InputStream is = factory.getClass().getResourceAsStream(schemaFilePath); Source schemaFile = new StreamSource(is); Schema schema; try { schema = factory.newSchema(schemaFile); } catch (SAXException e) { throw new ValidateXMLSchemaException(e); } // create a Validator instance, which can be used to validate an // instance document Validator validator = schema.newValidator(); // validate the DOM tree try { validator.validate(new DOMSource(document)); } catch (SAXException e) { throw new ValidateXMLSchemaException(e); } catch (IOException e) { throw new ValidateXMLSchemaException(e); } }