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

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          promise.complete(response)
        }
      },
    )

    val response = promise.get(4, SECONDS)

   * 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.

        builder.setQuery(buildQuery());
        builder.setRescorer(buildRescore(), windowSize);

        builder.execute(new ActionListener<SearchResponse>() {
            @Override
            public void onResponse(final SearchResponse searchResponse) {
                if (searchResponse.getFailedShards() > 0) {
                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));

 * may ultimately cause the application to slow down or crash.
 *
 * Both this class and [Response] implement [Closeable]. Closing a response simply
 * closes its response body. If you invoke [Call.execute] or implement [Callback.onResponse] you
 * must close this body by calling any of the following methods:
 *
 * * `Response.close()`
 * * `Response.body().close()`
 * * `Response.body().source().close()`
 * * `Response.body().charStream().close()`

            e: IOException,
          ) {
            synchronized(failures) {
              failures.add(e)
            }
            latch.countDown()
          }

          override fun onResponse(
            call: Call,
            response: Response,
          ) {
            processResponse(response, hostname, responses, failures)
            latch.countDown()
          }
        },
      )

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

        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          fail("")
        }
      },
    )
    assertThat(server.takeRequest().exchangeIndex)

    val request = Request.Builder().url(sanUrl).build()
    val call1 = client1.newCall(request)
    call1.enqueue(
      object : Callback {
        @Throws(IOException::class)
        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          try {
            // Wait until request2 acquires the connection before we destroy it violently.
            latch3.await()

            .build()

        client.newCall(request).enqueue(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")

              for ((name, value) in response.headers) {

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

        override fun onResponse(
          call: Call,
          response: Response,
        ): Unit = throw IOException("a")
      },
    )
    assertThat(testLogHandler.take())

        .header("Sec-WebSocket-Extensions", "permessage-deflate")
        .build()
    call = RealCall(webSocketClient, request, forWebSocket = true)
    call!!.enqueue(
      object : Callback {
        override fun onResponse(
          call: Call,
          response: Response,
        ) {
          val socket =
            try {
              checkUpgradeSuccess(response)
            } catch (e: IOException) {