positiveRangesByUpperBound
                .tailMap(
                    complementLowerBoundWindow.lowerEndpoint(),
                    complementLowerBoundWindow.lowerBoundType() == BoundType.CLOSED)
                .values();
      } else {
        positiveRanges = positiveRangesByUpperBound.values();
      }
      PeekingIterator<Range<C>> positiveItr = peekingIterator(positiveRanges.iterator());

    assertEquals(map, Maps.subMap(map, Range.closed(0, 12)));
    assertEquals(ImmutableSortedMap.of(2, 0, 4, 0), Maps.subMap(map, Range.closed(0, 4)));
    assertEquals(ImmutableSortedMap.of(2, 0, 4, 0, 6, 0), Maps.subMap(map, Range.closed(2, 6)));
    assertEquals(ImmutableSortedMap.of(4, 0, 6, 0), Maps.subMap(map, Range.closed(3, 7)));
    assertEquals(empty, Maps.subMap(map, Range.closed(20, 30)));

tent:"\f64f"}.fa-clinic-medical:before{content:"\f7f2"}.fa-clipboard:before{content:"\f328"}.fa-clipboard-check:before{content:"\f46c"}.fa-clipboard-list:before{content:"\f46d"}.fa-clock:before{content:"\f017"}.fa-clone:before{content:"\f24d"}.fa-closed-captioning:before{content:"\f20a"}.fa-cloud:before{content:"\f0c2"}.fa-cloud-download-alt:before{content:"\f381"}.fa-cloud-meatball:before{content:"\f73b"}.fa-cloud-moon:before{content:"\f6c3"}.fa-cloud-moon-rain:before{content:"\f73c"}.fa-cloud-...

A <code>nil</code> channel is never ready for communication.
</p>

<p>
A channel may be closed with the built-in function
<a href="#Close"><code>close</code></a>.
The multi-valued assignment form of the
<a href="#Receive_operator">receive operator</a>
reports whether a received value was sent before
the channel was closed.
</p>

<p>
A single channel may be used in

            }
        }
        if (httpClient != null) {
            try {
                httpClient.close();
                if (logger.isDebugEnabled()) {
                    logger.debug("HTTP client closed successfully");
                }
            } catch (final IOException e) {
                logger.warn("Failed to close HTTP client", e);
            }
            httpClient = null;

			return pi, toObjectErr(errUploadIDNotFound, bucket, object, uploadID)
		}
		if errors.Is(err, errFileNotFound) {
			// An in-quorum errFileNotFound means that client stream
			// prematurely closed and we do not find any xl.meta or
			// part.1's - in such a scenario we must return as if client
			// disconnected. This means that erasure.Encode() CreateFile()
			// did not do anything.

    operation ->> dep_func: Return from path operation
    Note over dep_func: Run code after yield
    Note over dep_func: ✅ Dependency closed
    dep_func ->> client: Send response to client
    Note over client: Response sent
    Note over dep_req: Run code after yield
    Note over dep_req: ✅ Dependency closed
```

    SerializableTester.reserializeAndAssert(emptyRangeMap);

    ImmutableRangeMap<Integer, Integer> nonEmptyRangeMap =
        new ImmutableRangeMap.Builder<Integer, Integer>()
            .put(Range.closed(2, 4), 5)
            .put(Range.open(6, 7), 3)
            .put(Range.closedOpen(8, 10), 4)
            .put(Range.openClosed(15, 17), 2)
            .build();

tent:"\f64f"}.fa-clinic-medical:before{content:"\f7f2"}.fa-clipboard:before{content:"\f328"}.fa-clipboard-check:before{content:"\f46c"}.fa-clipboard-list:before{content:"\f46d"}.fa-clock:before{content:"\f017"}.fa-clone:before{content:"\f24d"}.fa-closed-captioning:before{content:"\f20a"}.fa-cloud:before{content:"\f0c2"}.fa-cloud-download-alt:before{content:"\f381"}.fa-cloud-meatball:before{content:"\f73b"}.fa-cloud-moon:before{content:"\f6c3"}.fa-cloud-moon-rain:before{content:"\f73c"}.fa-cloud-...

- Apiserver add a new flag --goaway-chance which is the fraction of requests that will be closed gracefully(GOAWAY) to prevent HTTP/2 clients from getting stuck on a single apiserver. 
  After the connection closed(received GOAWAY), the client's other in-flight requests won't be affected, and the client will reconnect.