@Override
    public void endPrefixMapping(final String prefix) throws SAXException {
        prefixMappings.remove(prefix);
        if (contentHandler != null) {
            contentHandler.endPrefixMapping(prefix);
        }

        super.endPrefixMapping(prefix);
    }
Fired when a prefix mapping moves out of scope.

@param prefix The prefix.
@throws SAXException Not thrown.
@see stroom.pipeline.filter.AbstractXMLFilter#endPrefixMapping(java.lang.String)
stroom-search/stroom-search-extraction/src/main/java/stroom/search/extraction/XPathExtractionOutputFilter.java