* when hasNext() is false, so that next() throws a NoSuchElementException, then subsequent calls
   * to remove() will incorrectly throw an IllegalStateException, instead of removing the last
   * element returned.
   *
   * <p>See <a href="http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6529795">Sun bug 6529795</a>
   */
  static class IteratorWithSunJavaBug6529795<T> implements Iterator<T> {

	}

	// Do not send if the connection is not active.
	_, err := target.isActive()
	if err != nil {
		return err
	}

	eventData, err := target.store.Get(key)
	if err != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and wouldve been already been sent successfully.
		if os.IsNotExist(err) {
			return nil
		}

	b := make([]byte, n+1)
	for _, len := range lengths {
		// randomish but deterministic data. No 0 or 255.
		for i := 0; i < len; i++ {
			a[i] = byte(1 + 31*i%254)
			b[i] = byte(1 + 31*i%254)
		}
		// data past the end is different
		for i := len; i <= n; i++ {
			a[i] = 8
			b[i] = 9
		}
		cmp := Compare(a[:len], b[:len])
		if cmp != 0 {
			t.Errorf(`CompareIdentical(%d) = %d`, len, cmp)
		}
		if len > 0 {

			if xnet.IsConnRefusedErr(err) {
				return store.ErrNotConnected
			}
			return err
		}
		target.firstPing = true
	}

	eventData, eErr := target.store.Get(key)
	if eErr != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and would've been already been sent successfully.
		if os.IsNotExist(eErr) {
			return nil
		}

      }
    } catch (Throwable t) { // this includes CancellationException and sneaky checked exception
      throwable = t;
    }

    if (throwable == null) {
      /*
       * The cast is safe: There was no exception, so the assignment from getDone must have
       * succeeded.
       */
      set(uncheckedCastNullableTToT(sourceResult));
      return;
    }

    TreeMultimap<@Nullable String, @Nullable Integer> multimap = createPopulate();
    SortedSet<@Nullable String> keySet = multimap.keySet();

    assertEquals(null, keySet.first());
    assertEquals("google", keySet.last());
    assertEquals(StringLength.COMPARATOR, keySet.comparator());
    assertEquals(Sets.<@Nullable String>newHashSet(null, "tree"), keySet.headSet("yahoo"));
    assertEquals(newHashSet("google"), keySet.tailSet("yahoo"));

// Write object header
func setObjectHeaders(ctx context.Context, w http.ResponseWriter, objInfo ObjectInfo, rs *HTTPRangeSpec, opts ObjectOptions) (err error) {
	// set common headers
	setCommonHeaders(w)

	// Set last modified time.
	lastModified := objInfo.ModTime.UTC().Format(http.TimeFormat)
	w.Header().Set(xhttp.LastModified, lastModified)

	// Set Etag if available.
	if objInfo.ETag != "" {

	if err := target.init(); err != nil {
		return err
	}

	_, err := target.isActive()
	if err != nil {
		return err
	}

	eventData, eErr := target.store.Get(key)
	if eErr != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and wouldve been already been sent successfully.
		if os.IsNotExist(eErr) {
			return nil
		}

	// Compute endEncOffset with one additional DARE package (so
	// we read the package containing the last desired byte).
	endEncOffset := encCumulativeSum + (endPkgNum+1)*sseDAREEncPackageBlockSize
	// Check if the DARE package containing the end offset is a
	// full sized package (as the last package in the part may be
	// smaller)
	lastPartSize, _ := sio.EncryptedSize(uint64(sizes[partEnd]))

                }

                getLogger().debug("Writing resolution-state to: " + touchfile);
                channel.truncate(0);
                props.store(Channels.newOutputStream(channel), "Last modified on: " + new Date());

                lock.release();
                lock = null;

                channel.close();
                channel = null;
            } catch (IOException e) {