void unparsedEntityDecl(String name, String publicId, String systemId,
            String baseUri, String notation) throws SAXException {
        try {
            dtdHandler.unparsedEntityDecl(
                    name,
                    publicId,
                    resolveAll ? absolutize(baseUri, systemId, true) : systemId,
                    notation);
        } catch (IOException e) {
            // "can't happen"
            throw new SAXParseException(e.getMessage(), this, e);
        }
    }
<b>SAX2</b>: Assigns the specified property. Like SAX1 handlers, these
may be changed at any time.
src/nu/validator/gnu/xml/aelfred2/SAXDriver.java