assertEquals("{}", request.getBody().readUtf8());
```

#### Dispatcher

By default MockWebServer uses a queue to specify a series of responses. Use a
Dispatcher (`import okhttp3.mockwebserver.Dispatcher`) to handle requests using another policy. One natural policy is to
dispatch on the request path.
You can, for example, filter the request instead of using `server.enqueue()`.

```java

  private class OutFrame(
    val sequence: Int,
    val start: Long,
    val truncated: Boolean,
  )

  class InFrame(val sequence: Int, val reader: Http2Reader) : Http2Reader.Handler {
    @JvmField var type = -1
    var clearPrevious = false

    @JvmField var outFinished = false

    @JvmField var inFinished = false

    @JvmField var streamId = 0

 *  Fix: Don't drop callbacks on unexpected exceptions. When an interceptor throws an unchecked
    exception the callback is now notified that the call was canceled. The exception is still sent
    to the uncaught exception handler for reporting and recovery.

 *  Fix: Un-deprecate `MockResponse.setHeaders()` and other setters. These were deprecated in OkHttp
    4.0 but that broke method chaining for Java callers.

 */
package mockwebserver3

import okhttp3.ExperimentalOkHttpApi

/**
 * Handles a call's stream directly. Use this instead of [MockResponseBody] to begin sending
 * response data before all request data has been received.
 *
 * See [okhttp3.RequestBody.isDuplex].
 */
@ExperimentalOkHttpApi
interface StreamHandler {
  fun handle(stream: Stream)

    Hints’.

 *  Fix: Honor interceptors' changes to connect and read timeouts.

 *  Fix: Recover gracefully when a cached response is corrupted on disk.

 *  Fix: Don't leak file handles when a cache disk write fails.

 *  Fix: Don't hang when the public suffix database cannot be loaded. We had a bug where a failure
    reading the public suffix database would cause subsequent reads to hang when they should have

    async calls to this new API, `Call` is now the first parameter for both
    `onResponse()` and `onFailure()`.
 *  Fix: handle multiple cookies in `JavaNetCookieJar` on Android.
 *  Fix: improve the default HTTP message in MockWebServer responses.
 *  Fix: don't leak file handles when a conditional GET throws.
 *  Fix: Use charset specified by the request body content type in OkHttp's
    logging interceptor.

 * names to avoid confusing characters. This includes basic case folding: transforming shouting
 * `SQUARE.COM` into cool and casual `square.com`. It also handles more exotic characters. For
 * example, the Unicode trademark sign (™) could be confused for the letters "TM" in
 * `http://ho™ail.com`. To mitigate this, the single character (™) maps to the string (tm). There

        }
    }

  fun enable(
    loggerClass: String,
    handler: Handler = logHandler(),
  ): Closeable {
    val logger = Logger.getLogger(loggerClass)
    if (configuredLoggers.add(logger)) {
      logger.addHandler(handler)
      logger.level = Level.FINEST
    }
    return Closeable {
      logger.removeHandler(handler)
    }
  }

  fun enable(loggerClass: KClass<*>) = enable(loggerClass.java.name)

      if (!response.isSuccessful) throw IOException("Unexpected code $response")

      println(response.body.string())
    }
  }
}

object ConsoleCallbackHandler : CallbackHandler {
  override fun handle(callbacks: Array<Callback>) {
    for (callback in callbacks) {
      if (callback is PasswordCallback) {
        val console = System.console()

        if (console != null) {

 *
 *  * [TCP handshake][connectSocket]
 *  * Optional [CONNECT tunnels][connectTunnel]. When using an HTTP proxy to reach an HTTPS server
 *    we must send a `CONNECT` request, and handle authorization challenges from the proxy.
 *  * Optional [TLS handshake][connectTls].
 *
 * Each step may fail. If a retry is possible, a new instance is created with the next plan, which
 * will be configured differently.
 */