this.getNamespaceSupport().declarePrefix(prefix, uri);
m_prefixMappings.add(prefix); m_prefixMappings.add(uri);
  public void startPrefixMapping(String prefix, String uri)          throws org.xml.sax.SAXException  {    // m_nsSupport.pushContext();    this.getNamespaceSupport().declarePrefix(prefix, uri);  }