} finally {
      closer.close();
    }
  }

  private static long countBySkipping(Reader reader) throws IOException {
    long count = 0;
    long read;
    while ((read = reader.skip(Long.MAX_VALUE)) != 0) {
      count += read;
    }
    return count;
  }

  /**
   * Appends the contents of this source to the given {@link Appendable} (such as a {@link Writer}).

      for (i in 0 until size) {
        if (!"Vary".equals(name(i), ignoreCase = true)) {
          continue
        }

        val value = value(i)
        if (result == null) {
          result = TreeSet(String.CASE_INSENSITIVE_ORDER)
        }
        for (varyField in value.split(',')) {
          result.add(varyField.trim())
        }
      }
      return result ?: emptySet()
    }

    /**

        checkArgument(!map.containsKey(key), "Duplicate key [%s] found.", key);

        checkArgument(entryFields.hasNext(), INVALID_ENTRY_MESSAGE, entry);
        String value = entryFields.next();
        map.put(key, value);

        checkArgument(!entryFields.hasNext(), INVALID_ENTRY_MESSAGE, entry);
      }
      return Collections.unmodifiableMap(map);
    }
  }

  private interface Strategy {

    val outFinished = !out
    val inFinished = false
    val flushHeaders: Boolean
    val stream: Http2Stream
    val streamId: Int

    writer.withLock {
      withLock {
        if (nextStreamId > Int.MAX_VALUE / 2) {
          shutdown(REFUSED_STREAM)
        }
        if (isShutdown) {
          throw ConnectionShutdownException()
        }
        streamId = nextStreamId
        nextStreamId += 2

 *  New: `OkHttpClient.Builder.minWebSocketMessageToCompress()` configures a threshold for
    compressing outbound web socket messages. Configure this with 0L to always compress outbound
    messages and `Long.MAX_VALUE` to never compress outbound messages. The default is 1024L which
    compresses messages of size 1 KiB and larger. (Inbound messages are compressed or not based on
    the web socket server's configuration.)

     * @throws NullPointerException if {@code element} is null
     * @throws IllegalArgumentException if {@code occurrences} is negative, or if this operation
     *     would result in more than {@link Integer#MAX_VALUE} occurrences of the element
     */
    @CanIgnoreReturnValue
    @Override
    public Builder<E> addCopies(E element, int occurrences) {
      super.addCopies(element, occurrences);
      return this;
    }

        monitor.leave();
      }
    } else {
      return null;
    }
  }

  // this doc comment is overridden to remove the reference to collections
  // greater in size than Integer.MAX_VALUE
  /**
   * Returns the number of elements in this queue.
   *
   * @return the number of elements in this queue
   */
  @CanIgnoreReturnValue
  @Override
  public int size() {

 * at one time; if a value is not available to be edited then [edit] will return null.
 *
 *  * When an entry is being **created** it is necessary to supply a full set of values; the empty
 *    value should be used as a placeholder if necessary.
 *
 *  * When an entry is being **edited**, it is not necessary to supply data for every value; values
 *    default to their previous value.
 *

      this.toTrickle = toTrickle;
      this.replaced = replaced;
    }
  }

  /** Removes and returns the value at {@code index}. */
  private E removeAndGet(int index) {
    E value = elementData(index);
    removeAt(index);
    return value;
  }

  private Heap heapForIndex(int i) {
    return isEvenLevel(i) ? minHeap : maxHeap;
  }

  private static final class Reference<T> {
    private @Nullable T value;

    @Nullable T get() {
      return value;
    }

    void checkAndSet(@Nullable T expected, @Nullable T newValue) {
      if (value != expected) {
        throw new ConcurrentModificationException();
      }
      value = newValue;
    }

    void clear() {
      value = null;
    }
  }