@Override
    public void endPrefixMapping(String prefix) throws SAXException {
        if (contentHandler == null) {
            return;
        }
        contentHandler.endPrefixMapping(prefix);
    }
@param prefix
@throws SAXException
@see org.xml.sax.ContentHandler#endPrefixMapping(java.lang.String)
src/nu/validator/servlet/OutlineBuildingXMLReaderWrapper.java