cls: Class<out IOException?>?,
    message: String?,
  ) {
    val event = nextEvent() as Failure
    assertThat(event.response!!.code).isEqualTo(code)
    if (body != null) {
      assertThat(event.responseBody).isEqualTo(body)
    }
    assertThat(event.t.javaClass).isEqualTo(cls)
    assertThat(event.t.message).isEqualTo(message)
  }

  /** Expose this recorder as a frame callback and shim in "ping" events.  */

package okhttp3.internal.connection

import java.io.IOException
import java.net.ProtocolException
import okhttp3.EventListener
import okhttp3.Headers
import okhttp3.Request
import okhttp3.Response
import okhttp3.ResponseBody
import okhttp3.internal.http.ExchangeCodec
import okhttp3.internal.http.RealResponseBody
import okio.Buffer
import okio.ForwardingSink
import okio.ForwardingSource
import okio.Sink
import okio.Socket

      |
      |abcd
      |--simple boundary--
      """.trimMargin()
        .replace("\n", "\r\n")

    val responseBody =
      multipart.toResponseBody(
        "application/multipart; boundary=\"simple boundary\"".toMediaType(),
      )

    val parts = MultipartReader(responseBody)
    assertThat(parts.boundary).isEqualTo("simple boundary")

    val part = parts.nextPart()!!

    /** This is only part that's allowed to read from the underlying source. */
    private var currentPart: PartSource? = null

    @Throws(IOException::class)
    constructor(response: ResponseBody) : this(
      source = response.source(),
      boundary =
        response.contentType()?.parameter("boundary")
          ?: throw ProtocolException("expected the Content-Type to have a boundary parameter"),
    )

    **Warning:** Avoid `Level.HEADERS` and `Level.BODY` in production because
    they could leak passwords and other authentication credentials to insecure
    logs.

 *  **WebSocket API now uses `RequestBody` and `ResponseBody` for messages.**
    This is a backwards-incompatible API change.

 *  **The DNS service is now pluggable.** In some situations this may be useful
    to manually prioritize specific IP addresses.

        private final ByteArrayOutputStream capturedOutput = new ByteArrayOutputStream();
        private final String responseBody;

        OutputCapturingMockHttpURLConnection(URL u, String responseBody) {
            super(u);
            this.responseBody = responseBody;
        }

        @Override
        public void disconnect() {
        }

        @Override

   * [RequestBody.writeTo] after that method returns. For duplex requests bodies that condition is
   * lifted. Such writes occur on an application-provided thread and may occur concurrently with
   * reads of the [ResponseBody]. For duplex request bodies, [writeTo] should return
   * quickly, possibly by handing off the provided request body to another thread to perform
   * writing.
   *

          request()
            .post("Uncompressed".toRequestBody())
            .gzip()
            .build(),
        ).execute()
    val responseBody = response.body
    assertThat(responseBody.string(), "Expected response body to be valid")
      .isEqualTo("Uncompressed")
    responseBody.close()
    networkLogs
      .assertLogEqual("--> POST $url http/1.1")
      .assertLogEqual("Content-Encoding: gzip")

    val code: Int = response.code()
    val message: String = response.message()
    val handshake: Handshake? = response.handshake()
    val headers: Headers = response.headers()
    val body: ResponseBody = response.body()
    val networkResponse: Response? = response.networkResponse()
    val cacheResponse: Response? = response.cacheResponse()
    val priorResponse: Response? = response.priorResponse()

            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);

              Headers responseHeaders = response.headers();