s.updateLock.Lock()
	defer s.updateLock.Unlock()

	seenBefore := s.sourcesSeen.Has(source)
	adds, updates, deletes, removes, reconciles := s.merge(source, change)
	firstSet := !seenBefore && s.sourcesSeen.Has(source)

	// deliver update notifications
	switch s.mode {
	case PodConfigNotificationIncremental:
		if len(removes.Pods) > 0 {
			s.updates <- *removes
		}

        List<T> result = new ArrayList<T>();
        Iterator<? extends Collection<T>> iterator = availableValuesByDescriptor.iterator();
        if (iterator.hasNext()) {
            Collection<T> firstSet = iterator.next();
            result.addAll(firstSet);
            while (iterator.hasNext()) {
                Collection<T> next = iterator.next();
                result.retainAll(next);
            }
        }
        return result;

	telemetry.Inc(fmt.Sprintf("go/platform/host/%s/version:%s-%s", runtime.GOOS, major, minor))
}

func majorMinor(v string) (string, string, bool) {
	firstDot := strings.Index(v, ".")
	if firstDot < 0 {
		return "", "", false
	}
	major := v[:firstDot]
	v = v[firstDot+len("."):]
	endMinor := strings.IndexAny(v, ".-_")
	if endMinor < 0 {
		endMinor = len(v)
	}
	minor := v[:endMinor]
	return major, minor, true

			var firstEv *trace.Event
			if task.Start != nil {
				firstEv = task.Start
			} else {
				for _, logEv := range task.Logs {
					if firstEv == nil || logEv.Time() < firstEv.Time() {
						firstEv = logEv
					}
				}
				if task.End != nil && (firstEv == nil || task.End.Time() < firstEv.Time()) {
					firstEv = task.End
				}
			}

func (tsts authzTests) RunAll(t framework.TestContext) {
	t.Helper()

	firstTest := tsts[0]
	if len(tsts) == 1 {
		// Testing a single port. Just run a single test.
		testName := fmt.Sprintf("%s%s(%s)/%s", firstTest.prefix, firstTest.opts.HTTP.Path, firstTest.allow, firstTest.opts.Port.Name)
		t.NewSubTest(testName).Run(func(t framework.TestContext) {
			firstTest.BuildAndRun(t)
		})
		return
	}

	tsts.checkValid()

	// more than one of each per m, p, and goroutine.
	firstGen := traceNextGen(trace.lastNonZeroGen)

	// Reset GC sequencer.
	trace.seqGC = 1

	// Reset trace reader state.
	trace.headerWritten = false
	trace.readerGen.Store(firstGen)
	trace.flushedGen.Store(0)

	// Register some basic strings in the string tables.
	traceRegisterLabelsAndReasons(firstGen)

	// Stop the world.
	//

    @Override
    @CheckForNull
    public Comparator<? super K> comparator() {
      return fromMap().comparator();
    }

    @Override
    @ParametricNullness
    public K firstKey() {
      return fromMap().firstKey();
    }

    @Override
    public SortedMap<K, V2> headMap(@ParametricNullness K toKey) {
      return transformEntries(fromMap().headMap(toKey), transformer);
    }

    @Override
    @CheckForNull
    public Comparator<? super K> comparator() {
      return fromMap().comparator();
    }

    @Override
    @ParametricNullness
    public K firstKey() {
      return fromMap().firstKey();
    }

    @Override
    public SortedMap<K, V2> headMap(@ParametricNullness K toKey) {
      return transformEntries(fromMap().headMap(toKey), transformer);
    }

	if pending.Registers&new.Registers != pending.Registers {
		// There is at least one register in pending not mentioned in new.
		return false
	}
	return true
}

// firstReg returns the first register in set that is present.
func firstReg(set RegisterSet) uint8 {
	if set == 0 {
		// This is wrong, but there seem to be some situations where we
		// produce locations with no storage.
		return 0
	}

   */
  @Override
  public Comparator<? super K> comparator() {
    return keySet().comparator();
  }

  @Override
  public K firstKey() {
    return keySet().first();
  }

  @Override
  public K lastKey() {
    return keySet().last();
  }

  private ImmutableSortedMap<K, V> getSubMap(int fromIndex, int toIndex) {