)

  private fun execute(
    engine: HttpEngine,
    executor: ExecutorService,
    url: String,
  ): CompletableFuture<Response> {
    val completableFuture = CompletableFuture<Response>()
    val buffer = Buffer()

    val req =
      engine.newUrlRequestBuilder(
        url,
        executor,
        object : Callback {
          override fun onRedirectReceived(
            request: UrlRequest,

                            StringBuilder buffer = new StringBuilder(256);

                            if (!getSource().isEmpty()) {
                                buffer.append(getSource());
                            }

                            if (getLineNumber() > 0) {
                                if (!buffer.isEmpty()) {
                                    buffer.append(", ");
                                }

        long start = System.currentTimeMillis();
        byte buffer[] = new byte[bufSize];
        long p = 0;
        Random r = ReadWriteTest.getRandom();
        while ( p < length ) {
            ReadWriteTest.randBytes(r, buffer);
            int w = Math.min(bufSize, (int) ( length - p ));
            os.write(buffer, 0, w);
            p += w;
        }

        this.ctlCode = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        this.fileId = new byte[16];
        System.arraycopy(buffer, bufferIndex, this.fileId, 0, 16);
        bufferIndex += 16;

        int inputOffset = SMBUtil.readInt4(buffer, bufferIndex) + getHeaderStart();
        bufferIndex += 4;

        int inputCount = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

            e.name = readString(buffer, bufferIndex, 16, false);
            bufferIndex += 16;
            e.versionMajor = buffer[ bufferIndex++ ] & 0xFF;
            e.versionMinor = buffer[ bufferIndex++ ] & 0xFF;
            e.type = SMBUtil.readInt4(buffer, bufferIndex);
            bufferIndex += 4;
            int off = SMBUtil.readInt4(buffer, bufferIndex);
            bufferIndex += 4;

   */
  fun toDer(
    writer: DerWriter,
    value: T,
  )

  fun toDer(value: T): ByteString {
    val buffer = Buffer()
    val writer = DerWriter(buffer)
    toDer(writer, value)
    return buffer.readByteString()
  }

  /**
   * Returns an adapter that expects this value wrapped by another value. Typically this occurs

import java.nio.Buffer;

/**
 * Wrappers around {@link Buffer} methods that are covariantly overridden in Java 9+. See
 * https://github.com/google/guava/issues/3990
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
final class Java8Compatibility {
  static void clear(Buffer b) {
    b.clear();
  }

  static void flip(Buffer b) {
    b.flip();
  }

        @Override
        public String toString() {
            StringBuilder buffer = new StringBuilder();
            for (Item item : this) {
                if (buffer.length() > 0) {
                    buffer.append((item instanceof ListItem) ? '-' : '.');
                }
                buffer.append(item);
            }
            return buffer.toString();
        }

        /**

		return nil, errors.New("config: encryption metadata is too large")
	}
	header[0] = Version
	binary.LittleEndian.PutUint32(header[1:], uint32(len(metadata)))
	buffer.Write(header[:])
	buffer.Write(metadata)

	return io.MultiReader(
		&buffer,
		stream.EncryptReader(plaintext, nonce, nil),
	), nil
}

// Decrypt decrypts the ciphertext using a key managed by the KMS.

	v := BaseOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))
	en := msgp.NewWriter(msgp.Nowhere)
	b.ReportAllocs()
	b.ResetTimer()
	for i := 0; i < b.N; i++ {
		v.EncodeMsg(en)
	}
	en.Flush()
}

func BenchmarkDecodeBaseOptions(b *testing.B) {
	v := BaseOptions{}
	var buf bytes.Buffer
	msgp.Encode(&buf, &v)
	b.SetBytes(int64(buf.Len()))