Set entries = headers.entrySet();
Set entries = super.entrySet();
  public Set entrySet()  {    Set entries = headers.entrySet();    Set ret = new LinkedHashSet();    for (Iterator i = entries.iterator(); i.hasNext(); )      {        Map.Entry entry = (Map.Entry) i.next();        ret.add(new HeaderEntry(entry));      }    return ret;  }