if (busy == 0 && casBusy()) {
              boolean created = false;
              try { // Recheck under lock
                Cell[] rs;
                int m, j;
                if ((rs = cells) != null && (m = rs.length) > 0 && rs[j = (m - 1) & h] == null) {
                  rs[j] = r;
                  created = true;
                }
              } finally {
                busy = 0;
              }

   * fashion, except that their hierarchical relationship shall be: FS is the most inclusive, then
   * GS, then RS, and US is least inclusive. (The content and length of a File, Group, Record, or
   * Unit are not specified.)
   *
   * @since 8.0
   */
  public static final byte RS = 30;

  /**
   * Unit Separator: These four information separators may be used within data in optional fashion,

          "foo+bar.com",
          "foo-.com",
          ALMOST_TOO_LONG + ".c",
          ALMOST_TOO_MANY_LEVELS + "com"
          // keep-sorted end
          );

  private static final ImmutableSet<String> RS =
      ImmutableSet.of(
          // keep-sorted start
          "\u7f51\u7edc.Cn", // "网络.Cn"
          "co.uk",
          "co.uk.", // Trailing dot
          "co\uFF61uk", // Alternate dot character

* Remove the restart-kube-proxy and restart-apiserver functions ([#23180](https://github.com/kubernetes/kubernetes/pull/23180), [@roberthbailey](https://github.com/roberthbailey))
* Copy annotations back from RS to Deployment on rollback ([#23160](https://github.com/kubernetes/kubernetes/pull/23160), [@janetkuo](https://github.com/janetkuo))