clone._isRestartable = false;
  public DTMAxisIterator cloneIterator()  {    try    {      final DTMAxisIteratorBase clone = (DTMAxisIteratorBase) super.clone();      clone._isRestartable = false;      return clone.reset();    }    catch (CloneNotSupportedException e)    {      throw new org.apache.xml.utils.WrappedRuntimeException(e);    }  }