return
            }

          // Apply the extensions. If they're unacceptable initiate a graceful shut down.
          // TODO(jwilson): Listeners should get onFailure() instead of onClosing() + onClosed(1010).
          val extensions = WebSocketExtensions.parse(response.headers)
          ******@****.***ions = extensions
          if (!extensions.isValid()) {
            synchronized(this@RealWebSocket) {

                  return true;
                }
                return false;
              }
            },
            isParallel)
        .onClose(streamA::close)
        .onClose(streamB::close);
  }

  /**
   * Invokes {@code consumer} once for each pair of <i>corresponding</i> elements in {@code streamA}

    // overlap below
    assertEquals(Range.closed(4, 6), range.intersection(Range.closed(2, 6)));

    // enclosed with same start
    assertEquals(Range.closed(4, 6), range.intersection(Range.closed(4, 6)));

    // enclosed, interior
    assertEquals(Range.closed(5, 7), range.intersection(Range.closed(5, 7)));

    // enclosed with same end
    assertEquals(Range.closed(6, 8), range.intersection(Range.closed(6, 8)));

    // equal

                  return true;
                }
                return false;
              }
            },
            isParallel)
        .onClose(streamA::close)
        .onClose(streamB::close);
  }

  /**
   * Invokes {@code consumer} once for each pair of <i>corresponding</i> elements in {@code streamA}

    // overlap below
    assertEquals(Range.closed(4, 6), range.intersection(Range.closed(2, 6)));

    // enclosed with same start
    assertEquals(Range.closed(4, 6), range.intersection(Range.closed(4, 6)));

    // enclosed, interior
    assertEquals(Range.closed(5, 7), range.intersection(Range.closed(5, 7)));

    // enclosed with same end
    assertEquals(Range.closed(6, 8), range.intersection(Range.closed(6, 8)));

    // equal

   * value}, or {@code null} if this range set does not contain {@code value}.
   */
  @Nullable Range<C> rangeContaining(C value);

  /**
   * Returns {@code true} if there exists a non-empty range enclosed by both a member range in this
   * range set and the specified range. This is equivalent to calling {@code
   * subRangeSet(otherRange)} and testing whether the resulting range set is non-empty.
   *
   * @since 20.0
   */

        // Process phantom references to detect leaks
        Reference<?> ref;
        while ((ref = referenceQueue.poll()) != null) {
            handlePhantomReference(ref);
        }

        // Check for old unclosed resources
        long now = System.currentTimeMillis();
        for (ResourceHolder holder : activeResources.values()) {
            if (!holder.closed && holder.getAge() > maxResourceAge) {

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