val response = call.execute()
    assertThat(response.body.string()).isEqualTo("def")
    assertThat(server.takeRequest().exchangeIndex).isEqualTo(1)
  }

  @Test
  fun recoverFromMultipleCancelReusesConnection() {
    val responseDequeuedLatches =
      Arrays.asList(
        CountDownLatch(1),
        // No synchronization for the last request, which is not canceled:
        CountDownLatch(1),