responses. Both types of calls can be canceled via the `Call` or the
    `OkHttpClient`.

 *  **URLConnection support has moved to the okhttp-urlconnection module.**
    If you're upgrading from 1.x, this change will impact you. You will need to
    add the `okhttp-urlconnection` module to your project and use the
    `OkUrlFactory` to create new instances of `HttpURLConnection`:

    ```java

        .setBody("ABC")
        .clearHeaders()
        .addHeader("Content-Length: 4"),
    )
    server.enqueue(MockResponse().setBody("DEF"))
    val urlConnection = server.url("/").toUrl().openConnection()
    urlConnection.setReadTimeout(1000)
    val inputStream = urlConnection.getInputStream()
    assertThat(inputStream.read()).isEqualTo('A'.code)
    assertThat(inputStream.read()).isEqualTo('B'.code)

        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .body("DEF")
        .build(),
    )
    val urlConnection = server.url("/").toUrl().openConnection()
    urlConnection!!.readTimeout = 1000
    val inputStream = urlConnection.getInputStream()
    assertThat(inputStream!!.read()).isEqualTo('A'.code)
    assertThat(inputStream.read()).isEqualTo('B'.code)

    `multipart/mixed; boundary="abc"`.

 *  New: `Authenticator.JAVA_NET_AUTHENTICATOR` forwards authentication requests to
    `java.net.Authenticator`. This obsoletes `JavaNetAuthenticator` in the `okhttp-urlconnection`
    module.

 *  New: `CertificatePinner` now offers an API for inspecting the configured pins.

 *  Upgrade: [Okio 2.6.0][okio_2_6_0].

    ```kotlin
    implementation("com.squareup.okio:okio:2.6.0")

convertSystemPropert(java.util.Properties); public void Download(Logger, java.util.HashMap, int); public static java.net.URI safeUri(java.net.URI); public final void configureProxyAuthen(); public final void addBasicAuthenticati(java.net.URI, java.net.URLConnection); public final String calculateUserAgent(); } org/gradle/wrapper/GradleUserHomeLookup.class package org.gradle.wrapper; public abstract class GradleUserHomeLookup { public static final String DEFAULT_GRADLE_USER_HOME; static void <clinit>(); }...