.build();
    client.newCall(washingtonPostRequest).enqueue(new Callback() {
      @Override public void onFailure(Call call, IOException e) {
      }

      @Override public void onResponse(Call call, Response response) throws IOException {
        try (ResponseBody body = response.body()) {
          // Consume and discard the response body.
          body.source().readByteString();
        }
      }

      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          e.printStackTrace()
        }

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          response.use {
            if (!response.isSuccessful) throw IOException("Unexpected code $response")

        .build();

    client.newCall(request).enqueue(new Callback() {
      @Override public void onFailure(Call call, IOException e) {
        e.printStackTrace();
      }

      @Override public void onResponse(Call call, Response response) throws IOException {
        try (ResponseBody responseBody = response.body()) {
          if (!response.isSuccessful()) throw new IOException("Unexpected code " + response);

          call: Call,
          e: IOException,
        ) {
          exceptionRef.set(e)
          latch.countDown()
        }

        @Throws(IOException::class)
        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          response.close()
          latch.countDown()
        }
      },
    )
    latch.await()

    val okhttp = OkHttpClient()
    val callback =
      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {}

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          response.close()
        }
      }
    repeat(10_000) {

      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          continuation.resumeWithException(e)
        }

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          continuation.resume(response) { _, value, _ ->
            value.closeQuietly()
          }
        }
      },
    )

  constructor(response: Response, listener: EventSourceListener) : this(null, response.request, listener)

  @Volatile private var canceled = false

  override fun onResponse(
    call: Call,
    response: Response,
  ) {
    processResponse(response)
  }

  internal fun processResponse(response: Response) {
    response.use {
      if (!response.isSuccessful) {

   * necessarily indicate application-layer success: `response` may still indicate an unhappy HTTP
   * response code like 404 or 500.
   */
  @Throws(IOException::class)
  fun onResponse(
    call: Call,
    response: Response,
  )

      object : Callback {
        override fun onFailure(
          call: Call,
          e: IOException,
        ) {
          println("failed: $e")
        }

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          println("response: ${response.code}")
          response.close()
        }
      },
    )
  }

   * Note: The time at which a [call][Call] is considered idle is different depending on whether it
   * was run [asynchronously][Call.enqueue] or [synchronously][Call.execute]. Asynchronous calls
   * become idle after the [onResponse][Callback.onResponse] or [onFailure][Callback.onFailure]
   * callback has returned. Synchronous calls become idle once [execute()][Call.execute] returns.