}

    /**
     * Returns the coalescing.
     *
     * @return the coalescing
     */
    public boolean isCoalescing() {
        return coalescing;
    }

    /**
     * Sets the coalescing.
     *
     * @param coalescing the coalescing to set
     */
    public void setCoalescing(final boolean coalescing) {
        this.coalescing = coalescing;
    }

    /**

    assert200Http2Response(execute(sanUrl), "san.com")
    assertThat(client.connectionPool.connectionCount()).isEqualTo(1)
  }

  /** Certificate pinning used and not a match will avoid coalescing and try to connect.  */
  @Test
  fun skipsWhenCertificatePinningFails() {
    val pinner =
      CertificatePinner
        .Builder()
        .add("san.com", "sha1/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=")

    }

    // At this point we don't have a hostname match. But we still be able to carry the request if
    // our connection coalescing requirements are met. See also:
    // https://hpbn.co/optimizing-application-delivery/#eliminate-domain-sharding
    // https://daniel.haxx.se/blog/2016/08/18/http2-connection-coalescing/

    // 1. This connection must be HTTP/2.
    if (http2Connection == null) return false

    val connect = planConnect()

    // Now that we have a set of IP addresses, make another attempt at getting a connection from
    // the pool. We have a better chance of matching thanks to connection coalescing.
    val pooled2 = planReusePooledConnection(connect, connect.routes)
    if (pooled2 != null) return pooled2

    return connect
  }

  /**

      this.counts = new int[ImmutableCollection.Builder.DEFAULT_INITIAL_CAPACITY];
    }

    /** Check if we need to do deduplication and coalescing, and if so, do it. */
    private void maintenance() {
      if (length == elements.length) {
        dedupAndCoalesce(true);
      } else if (forceCopyElements) {