* would be the right tool for the job here: {@code @Nullable} is the annotation that we're trying
   * to get rid of, and {@code @NonNull} would be wrong for our use case for the same reason as
   * {@code requireNonNull}: Our use case is the one in which {@code T} has parametric nullness—and
   * thus its value may be legitimately {@code null}.)
   */
  @ParametricNullness
  @SuppressWarnings("nullness")

  }

  @Test fun closeCallsCallback() {
    data.write("880703e848656c6c6f".decodeHex()) // Close with code and reason
    clientReader.processNextFrame()
    callback.assertClosing(1000, "Hello")
  }

  @Test fun closeIncompleteCallsCallback() {
    data.write("880703e948656c6c6f".decodeHex()) // Close with code and reason
    data.close()
    clientReader.processNextFrame()
    callback.assertClosing(1001, "Hello")
  }

      }
      private set(value) {
        val reason =
          when (value) {
            in 100..199 -> "Informational"
            in 200..299 -> "OK"
            in 300..399 -> "Redirection"
            in 400..499 -> "Client Error"
            in 500..599 -> "Server Error"
            else -> "Mock Response"
          }
        status = "HTTP/1.1 $value $reason"
      }

            return asHtml(virtualHost(path_Login_NewpasswordJsp));
        } catch (final LoginFailureException lfe) {
            if (logger.isInfoEnabled()) {
                logger.info("Login failed for user: username={}, reason={}", username, lfe.getMessage());
            }
            activityHelper.loginFailure(OptionalThing.of(new LocalUserCredential(username, password)));

  }

  // Wrapper of EnumMultiset factory methods, because we need to skip create(Class).
  // create(Enum1.class) is equal to create(Enum2.class) but testEquals() expects otherwise.
  // For the same reason, we need to skip create(Iterable, Class).
  private static class EnumMultisetFactory {
    @Keep // used reflectively by testEquals
    public static <E extends Enum<E>> EnumMultiset<E> create(Iterable<E> elements) {

A single HTTP call may require follow-up requests to be made to handle authentication challenges, redirects, and HTTP-layer timeouts. In such cases multiple connections, requests, and responses may be attempted. Follow-ups are another reason a single call may trigger multiple events of the same type.

![Events Diagram](../assets/images/******@****.***)

### Availability

             * necessarily populated with header data because they're not writing
             * the header, only their body. But for whatever reason one might wish
             * to populate fields if the writeXxx operation needs this header data
             * for whatever reason. I copy over the uid here so it appears correct
             * in logging output. Logging of andx segments of messages inadvertantly

              try {
                /*
                 * Threads from our private pool are never interrupted. Threads from a
                 * user-supplied executor might be, but... what can we do? This is another reason
                 * to return a proper ListenableFuture instead of using listenInPoolThread.
                 */
                getUninterruptibly(delegate);
              } catch (Throwable t) {

        ) = TODO()

        override fun onClosing(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) = TODO()

        override fun onClosed(
          webSocket: WebSocket,
          code: Int,
          reason: String,
        ) = TODO()

        override fun onFailure(
          webSocket: WebSocket,
          t: Throwable,

   * identical inputs: This sounds like it ought to be a problem here, since the goals of this class
   * include testing that {@code equals()} is reflexive and is tolerant of {@code null}. However,
   * there's no problem. The reason: {@link EqualsTester} tests {@code null} and identical inputs
   * directly against {@code equals()} rather than through the {@code Equivalence}.
   */
  private final Equivalence<? super T> equivalence;