return s;
return new Integer(hc);
      public Object getKey(Object o) {        InstanceStats is = (InstanceStats) o;        Object obj = is.get();        String s;        if (obj == null) {          s = "null";        } else {          try {            s = obj.toString();          } catch (Exception e) {            // concurrent mod?            s = e.toString();          }        }        return s;      }