final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        if (!external) {
            try {
                factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, "");
                factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {

        try {
            schemaFactory.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
            schemaFactory.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to set a property.", e);
            }
        }
    }