val request2 = server.takeRequest()
    assertThat(tlsVersions).contains(request2.handshake?.tlsVersion)
  }

  /**
   * Verify that we don't retry connections on certificate verification errors.
   *
   * http://code.google.com/p/android/issues/detail?id=13178
   */
  @Flaky
  @Test
  fun connectViaHttpsToUntrustedServer() {

    assertThat(server.takeRequest().exchangeIndex).isEqualTo(2)
  }

  /**
   * Each OkHttpClient used to get its own instance of NullProxySelector, and because these weren't
   * equal their connections weren't pooled. That's a nasty performance bug!
   *
   * https://github.com/square/okhttp/issues/5519
   */
  @Test
  fun connectionPoolingWithFreshClientSamePool() {

   * of reads may not be immediately reflected on the algorithm's data structures. These structures
   * are guarded by a lock and operations are applied in batches to avoid lock contention. The
   * penalty of applying the batches is spread across threads so that the amortized cost is slightly
   * higher than performing just the operation without enforcing the capacity constraint.
   *

* Add a flag allowing contention profiling of the API server ([#36756](https://github.com/kubernetes/kubernetes/pull/36756), [@gmarek](https://github.com/gmarek))