@Override
    public void setLocale(Locale locale) throws SAXException {
        if ("en".equals(locale.getLanguage())) {
            return;
        }
        throw new SAXException("AElfred2 only supports English locales.");
    }
<b>SAX1</b>: Sets the locale used for diagnostics; currently, only
locales using the English language are supported.

@param locale
           The locale for which diagnostics will be generated
src/nu/validator/gnu/xml/aelfred2/SAXDriver.java