@Deprecated
    @Override
    public void setDocumentHandler(DocumentHandler handler) {
        contentHandler = new Adapter(handler);
        xmlNames = true;
    }
<b>SAX1</b>: Set the document handler for this parser. If a content
handler was set, this document handler will supplant it. The parser is
set to report all XML 1.0 names rather than to filter out "xmlns"
attributes (the "namespace-prefixes" feature is set to true).

@deprecated SAX2 programs should use the XMLReader interface and a
            ContentHandler.

@param handler
           The object to receive document events.
src/nu/validator/gnu/xml/aelfred2/SAXDriver.java