taskRunner = taskRunner,
        connectionPool = pool,
        route = route,
        socket = Socket(),
        idleAtNs = idleAtNanos,
      )
    result.withLock { pool.put(result) }
    return result
  }

  fun newConnectionPool(
    taskRunner: TaskRunner = this.taskRunner,
    maxIdleConnections: Int = Int.MAX_VALUE,
    routePlanner: RoutePlanner? = null,

      if (response.promisesBody() && CacheStrategy.isCacheable(response, cacheNetworkRequest)) {
        // Offer this request to the cache.
        val cacheRequest = cache.put(response.newBuilder().request(cacheNetworkRequest).build())
        return cacheWritingResponse(cacheRequest, response).also {
          if (cacheResponse != null) {
            // This will log a conditional cache miss only.

      val parameterValue =
        when {
          startsWith('"'.code.toByte()) -> readQuotedString()
          else -> readToken()
        } ?: return // Expected a value.

      val replaced = parameters.put(peek, parameterValue)
      peek = null
      if (replaced != null) return // Unexpected duplicate parameter.
      if (!skipCommasAndWhitespace() && !exhausted()) return // Expected ',' or EOF.
    }

    val endpointUrl = server.url("/endpoint")

    var request =
      Request.Builder()
        .url(endpointUrl)
        .header("Content-Type", "application/xml")
        .put(ValidRequestBody())
        .build()
    client.newCall(request).execute().use {
      assertEquals(201, it.code)
    }

    request =
      Request.Builder()
        .url(endpointUrl)
        .head()

Since HTTP requests frequently happen in parallel, connection pooling must be thread-safe.

  @Test
  fun permitsRequestBody() {
    assertTrue(permitsRequestBody("POST"))
    assertFalse(permitsRequestBody("GET"))
  }

  @Test
  fun requiresRequestBody() {
    assertTrue(requiresRequestBody("PUT"))
    assertFalse(requiresRequestBody("GET"))
  }

  @Test
  fun hasBody() {
    val request = Request.Builder().url("http://example.com").build()
    val response =
      Response.Builder().code(200)

    assertThat(recordedRequest.method).isEqualTo("PUT")
    assertThat(recordedRequest.body.readUtf8()).isEqualTo("def")
    assertThat(recordedRequest.headers["Content-Length"]).isEqualTo("3")
    assertThat(recordedRequest.headers["Content-Type"]).isEqualTo(
      "text/plain; charset=utf-8",
    )
  }

  @Test
  fun put_HTTPS() {
    enableTls()
    put()
  }

  @Test
  fun put_HTTP_2() {

    open fun post(body: RequestBody): Builder = commonPost(body)

    @JvmOverloads
    open fun delete(body: RequestBody? = commonEmptyRequestBody): Builder = commonDelete(body)

    open fun put(body: RequestBody): Builder = commonPut(body)

    open fun patch(body: RequestBody): Builder = commonPatch(body)

    open fun method(
      method: String,
      body: RequestBody?,

                "a=\"android\";\$Path=\"/\";\$Domain=\"${serverUrl.host}\"; " +
                "b=\"banana\";\$Path=\"/\";\$Domain=\"${serverUrl.host}\"",
            ),
        )

        override fun put(
          uri: URI,
          map: Map<String, List<String>>,
        ) {
        }
      }
    client =
      client.newBuilder()
        .cookieJar(JavaNetCookieJar(androidCookieHandler))

    // 3 different lookups in the connection pool!
    val pooled3 = routePlanner.planReusePooledConnection(this, routes)
    if (pooled3 != null) return pooled3.connection

    connection.withLock {
      connectionPool.put(connection)
      user.acquireConnectionNoEvents(connection)
    }

    user.connectionAcquired(connection)
    user.connectionConnectionAcquired(connection)
    return connection
  }