`okhttp-tls` module.

 *  Upgrade: [Kotlin 1.3.71][kotlin_1_3_71].


## Version 4.5.0

_2020-04-06_

**This release fixes a severe bug where OkHttp incorrectly detected and recovered from unhealthy
connections.** Stale or canceled connections were incorrectly attempted when they shouldn't have

   * very flexible regarding wildcard rules, but this flexibility is not something currently used
   * in practice. To simplify the implementation, we've avoided implementing the flexible rules in
   * favor of supporting what's actually used in practice. That means if these assertions ever fail,
   * the implementation will need to be revisited to support a more flexible rule.

3. Verify that the expected requests were made.

Here's a complete example:

```java
public void test() throws Exception {
  // Create a MockWebServer. These are lean enough that you can create a new
  // instance for every unit test.
  MockWebServer server = new MockWebServer();

  // Schedule some responses.
  server.enqueue(new MockResponse().setBody("hello, world!"));
  server.enqueue(new MockResponse().setBody("sup, bra?"));

    assertThat(certificate.getSubjectX500Principal().name)
      .isEqualTo("CN=cash.app,OU=engineering")
  }

  @Test
  fun decodeRsa512() {
    // The certificate + private key below was generated with OpenSSL. Never generate certificates
    // with MD5 or 512-bit RSA; that's insecure!
    //
    // openssl req \
    //   -x509 \
    //   -md5 \
    //   -nodes \
    //   -days 1 \
    //   -newkey rsa:512 \

  }

  /**
   * We've had a bug where we forget the HTTP response when we see response code 401. This causes a
   * new HTTP request to be issued for every call into the URLConnection.
   */
  @Test
  fun unauthorizedResponseHandling() {
    val mockResponse =
      MockResponse(
        code = HttpURLConnection.HTTP_UNAUTHORIZED,

import okhttp3.internal.http2.Settings
import okio.Buffer
import org.junit.Ignore
import org.junit.Test

/**
 * Access every type, function, and property from Kotlin to defend against unexpected regressions in
 * modern 4.0.x kotlin source-compatibility.
 */
@Suppress(
  "ASSIGNED_BUT_NEVER_ACCESSED_VARIABLE",
  "UNUSED_ANONYMOUS_PARAMETER",
  "UNUSED_VALUE",
  "UNUSED_VARIABLE",
  "VARIABLE_WITH_REDUNDANT_INITIALIZER",

Code Contributions
------------------

Get working code on a personal branch with tests passing before you submit a PR:

```
./gradlew clean check
```

Please make every effort to follow existing conventions and style in order to keep the code as
readable as possible.

Contribute code changes through GitHub by forking the repository and sending a pull request. We
squash all pull requests on merge.

Code Contributions
------------------

Get working code on a personal branch with tests passing before you submit a PR:

```
./gradlew clean check
```

Please make every effort to follow existing conventions and style in order to keep the code as
readable as possible.

Contribute code changes through GitHub by forking the repository and sending a pull request. We
squash all pull requests on merge.

    val inputStream = server.url("/a").toUrl().openConnection().getInputStream()
    assertThat(inputStream!!.read()).isEqualTo('B'.code)
  }

  /**
   * Throttle the request body by sleeping 500ms after every 3 bytes. With a 6-byte request, this
   * should yield one sleep for a total delay of 500ms.
   */
  @Test
  fun throttleRequest() {
    assumeNotWindows()
    server.enqueue(
      MockResponse.Builder()

              adjustDynamicTableByteCount()
            }
            b == 0x10 || b == 0 -> {
              // 000?0000 - Ignore never indexed bit.
              readLiteralHeaderWithoutIndexingNewName()
            }
            else -> {
              // 000?NNNN - Ignore never indexed bit.
              val index = readInt(b, PREFIX_4_BITS)
              readLiteralHeaderWithoutIndexingIndexedName(index - 1)
            }