@Override
    public void endPrefixMapping(String prefix) throws SAXException {
      throw new UnsupportedOperationException();
    }
Test method for
{@link XmlGeneratorUtils#emptyElement(ContentHandler, String, String, AttributesImpl)}.
geode-core/src/test/java/org/apache/geode/internal/cache/xmlcache/XmlGeneratorUtilsJUnitTest.java