@Override
    public String getValue(String xmlName) {
        int index = getIndex(xmlName);

        if (index < 0) {
            return null;
        }
        return getValue(index);
    }
<b>SAX1 AttributeList, SAX2 Attributes</b> method (don't invoke on
parser);
src/nu/validator/gnu/xml/aelfred2/SAXDriver.java