}

        val requestBody = userResponse.request.body
        if (requestBody != null && requestBody.isOneShot()) {
          return null
        }
        val priorResponse = userResponse.priorResponse
        if (priorResponse != null && priorResponse.code == HTTP_CLIENT_TIMEOUT) {
          // We attempted to retry and got another timeout. Give up.
          return null
        }

  @JvmName("-deprecated_priorResponse")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "priorResponse"),
    level = DeprecationLevel.ERROR,
  )
  fun priorResponse(): Response? = priorResponse

  /**
   * Returns the RFC 7235 authorization challenges appropriate for this response's code. If the

 * **PushPromise**: headers, method, path, response
 * **Request**: body, cacheControl, headers, method, url
 * **Response**: body, cacheControl, cacheResponse, code, handshake, headers, message,
   networkResponse, priorResponse, protocol, receivedResponseAtMillis, request, sentRequestAtMillis
 * **Route**: address, proxy, socketAddress
 * **TlsVersion**: javaName

#### Renamed Functions

    val body: ResponseBody = response.body()
    val networkResponse: Response? = response.networkResponse()
    val cacheResponse: Response? = response.cacheResponse()
    val priorResponse: Response? = response.priorResponse()
    val cacheControl: CacheControl = response.cacheControl()
    val sentRequestAtMillis: Long = response.sentRequestAtMillis()
    val receivedResponseAtMillis: Long = response.receivedResponseAtMillis()

    val redirect: Boolean = response.isRedirect
    val networkResponse: Response? = response.networkResponse
    val cacheResponse: Response? = response.cacheResponse
    val priorResponse: Response? = response.priorResponse
    val challenges: List<Challenge> = response.challenges()
    val cacheControl: CacheControl = response.cacheControl
    val sentRequestAtMillis: Long = response.sentRequestAtMillis

    }
    ```

    This above code relies on this `responseCount` extension val:

    ```kotlin
    val Response.responseCount: Int
      get() = generateSequence(this) { it.priorResponse }.count()
    ```
=== ":material-language-java: Java"
    ```java
      private final OkHttpClient client;

      public Authenticate() {
        client = new OkHttpClient.Builder()

    val sanUrl =
      url.newBuilder()
        .host("san.com")
        .build()
    execute(sanUrl).use { response ->
      assertThat(response.code).isEqualTo(200)
      assertThat(response.priorResponse!!.code).isEqualTo(421)
      assertThat(response.body.string()).isEqualTo("after misdirect")
    }
    assertThat(server.takeRequest().sequenceNumber).isEqualTo(0)

    type declaration was nullable to support rare cases like the body on `Response.cacheResponse`,
    `Response.networkResponse`, and `Response.priorResponse`. In such cases the body is now
    non-null, but attempts to read its content will fail.
 *  New: Kotlin-specific APIs for request tags. Kotlin language users can lookup tags with a type