docs: public final void makeEmptyAndClean()
    {
  //    if (tc.isEntryEnabled())
  //      SibTr.entry(tc, "makeEmptyAndClean");
      makeEmpty();
      for (int i=0;i<m_array.length;++i) m_array[i]=null;
  //   if (tc.isEntryEnabled())
  //      SibTr.entry(tc, "makeEmptyAndClean");
    }