*
   * <p>For more on IPv4 compatible addresses see section 2.5.5.1 of <a target="_parent"
   * href="http://tools.ietf.org/html/rfc4291#section-2.5.5.1">RFC 4291</a>.
   *
   * <p>NOTE: This method is different from {@link Inet6Address#isIPv4CompatibleAddress} in that it
   * more correctly classifies {@code "::"} and {@code "::1"} as proper IPv6 addresses (which they

   *
   * <p>For more on IPv4 compatible addresses see section 2.5.5.1 of <a target="_parent"
   * href="http://tools.ietf.org/html/rfc4291#section-2.5.5.1">RFC 4291</a>.
   *
   * <p>NOTE: This method is different from {@link Inet6Address#isIPv4CompatibleAddress} in that it
   * more correctly classifies {@code "::"} and {@code "::1"} as proper IPv6 addresses (which they

    manual calls to `HostnameVerifier` could be defeated if the hostnames they pass in are not
    strictly ASCII. This issue is tracked as [CVE-2021-0341].


## Version 4.9.1

_2021-01-30_

 *  Fix: Work around a crash in Android 10 and 11 that may be triggered when two threads
    concurrently close an SSL socket. This would have appeared in crash logs as

            byte[] buf = new byte[50];
            byte[] inB = new byte[100];

            // Setup fragment length exceeding max (4280)
            Encdec.enc_uint16le((short) 4281, inB, 8);

            when(mockSmbPipeHandleInternal.isStale()).thenReturn(false);
            when(mockSmbPipeHandleInternal.sendrecv(buf, 0, 50, inB, 4280)).thenReturn(40);

    server.enqueue(
      MockResponse
        .Builder()
        .body("seed connection")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .code(421)
        .body("misdirected!")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .body("after misdirect")
        .build(),
    )

    assertNextPermutation(newArrayList(2, 3, 4, 1), permutations);
    assertNextPermutation(newArrayList(2, 4, 3, 1), permutations);
    assertNextPermutation(newArrayList(4, 2, 3, 1), permutations);

    assertNextPermutation(newArrayList(4, 2, 1, 3), permutations);
    assertNextPermutation(newArrayList(2, 4, 1, 3), permutations);
    assertNextPermutation(newArrayList(2, 1, 4, 3), permutations);

    assertNextPermutation(newArrayList(2, 3, 4, 1), permutations);
    assertNextPermutation(newArrayList(2, 4, 3, 1), permutations);
    assertNextPermutation(newArrayList(4, 2, 3, 1), permutations);

    assertNextPermutation(newArrayList(4, 2, 1, 3), permutations);
    assertNextPermutation(newArrayList(2, 4, 1, 3), permutations);
    assertNextPermutation(newArrayList(2, 1, 4, 3), permutations);

      HTTP_MISDIRECTED_REQUEST -> {
        // OkHttp can coalesce HTTP/2 connections even if the domain names are different. See
        // RealConnection.isEligible(). If we attempted this and the server returned HTTP 421, then
        // we can retry on a different connection.
        val requestBody = userResponse.request.body
        if (requestBody != null && requestBody.isOneShot()) {
          return null
        }

                    Arguments.of(new int[0], 4), // size() returns 4 for empty array
                    Arguments.of(new int[] { 1 }, 4 + 2), // size() returns 4 + 2*1
                    Arguments.of(new int[] { 1, 2 }, 4 + 4), // size() returns 4 + 2*2
                    Arguments.of(new int[] { 1, 2, 3, 4, 5 }, 4 + 10) // size() returns 4 + 2*5
            );
        }

            completed.countDown();
          }
        };
    ListeningScheduledExecutorService service = listeningDecorator(delegate);
    ListenableFuture<Integer> future = service.schedule(Callables.returning(42), 1, MILLISECONDS);

    /*
     * Wait not just until the Future's value is set (as in future.get()) but
     * also until ListeningScheduledExecutorService's wrapper task is done