public void handleEndElement(
      OtterContentHandler theContentHandler,
      String namespaceURI,
      String localName,
      String qualifiedName) {

    //
    // should pop the mode off the stack.
    super.handleEndElement(theContentHandler, namespaceURI, localName, qualifiedName);

    // grab the annotation off the stack, and set it into the
    // parent sequence_set.
    AssemblyFeature sequenceFragment = (AssemblyFeature) theContentHandler.popStackObject();
    ((AnnotatedFeatureI) theContentHandler.getCurrentObject()).addFeature(sequenceFragment);
  } // end handleTag