for (int i = MIN_BOUND; i <= MAX_BOUND; i++) {
      final int ii = i;
      ImmutableRangeMap.Builder<Integer, Integer> builder = ImmutableRangeMap.builder();
      assertThrows(IllegalArgumentException.class, () -> builder.put(Range.closedOpen(ii, ii), 1));
      assertThrows(IllegalArgumentException.class, () -> builder.put(Range.openClosed(ii, ii), 1));
    }
  }

  public void testOverlapRejection() {

    for (int i = MIN_BOUND; i <= MAX_BOUND; i++) {
      final int ii = i;
      ImmutableRangeMap.Builder<Integer, Integer> builder = ImmutableRangeMap.builder();
      assertThrows(IllegalArgumentException.class, () -> builder.put(Range.closedOpen(ii, ii), 1));
      assertThrows(IllegalArgumentException.class, () -> builder.put(Range.openClosed(ii, ii), 1));
    }
  }

  public void testOverlapRejection() {

	for i := range oldTargets {
		currentTgt, ok := oldTargets[i].(*http.Target)
		if !ok {
			continue
		}
		var newTgt *http.Target

		for ii := range tgts {
			if currentTgt.Name() == tgts[ii].Name() {
				newTgt = tgts[ii]
				currentTgt.AssignMigrateTarget(newTgt)
				http.CreateOrAdjustGlobalBuffer(currentTgt, newTgt)
				break
			}
		}
	}

	for _, t := range tgts {

gv: Gaelg
ha: هَوُسَ
he: עברית
hi: हिन्दी
ho: Hiri Motu
hr: Hrvatski
ht: Kreyòl ayisyen
hu: magyar
hy: Հայերեն
hz: Otjiherero
ia: Interlingua
id: Bahasa Indonesia
ie: Interlingue
ig: Asụsụ Igbo
ii: ꆈꌠ꒿ Nuosuhxop
ik: Iñupiaq
io: Ido
is: Íslenska
it: italiano
iu: ᐃᓄᒃᑎᑐᑦ
ja: 日本語
jv: basa Jawa
ka: ქართული
kg: Kikongo
ki: Gĩkũyũ
kj: Kuanyama
kk: қазақ тілі
kl: kalaallisut
km: ខេមរភាសា

	if err != nil {
		return nil, err
	}

	// Sort the entries.
	sort.Slice(files, func(i, j int) bool {
		ii, err := files[i].Info()
		if err != nil {
			return false
		}
		ji, err := files[j].Info()
		if err != nil {
			return true
		}
		return ii.ModTime().Before(ji.ModTime())
	})

	return files, nil
}

// Extension will return the file extension used