[GraalVM]: https://www.graalvm.org/
[OpenJDK]: https://openjdk.java.net/groups/security/
[OpenJSSE]: https://github.com/openjsse/openjsse
[OpenSSL]: https://www.openssl.org/
[bug5592]: https://github.com/square/okhttp/issues/5592

 *
 * Implementations of this interface must be safe for concurrent use.
 */
fun interface Dns {
  /**
   * Returns the IP addresses of `hostname`, in the order they will be attempted by OkHttp. If a
   * connection to an address fails, OkHttp will retry the connection with the next address until
   * either a connection is made, the set of IP addresses is exhausted, or a limit is exceeded.
   */
  @Throws(UnknownHostException::class)

import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.junit5.StartStop
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.RequestBody.Companion.toRequestBody
import okhttp3.ResponseBody.Companion.toResponseBody
import okhttp3.TestUtil.assertSuppressed
import okio.Buffer
import okio.BufferedSink
import okio.ForwardingSink
import okio.ForwardingSource

# Module okhttp-sse

OkHttp HPACK tests
==================

These tests use the [hpack-test-case][1] project to validate OkHttp's HPACK
implementation.  The HPACK test cases are in a separate git submodule, so to
initialize them, you must run:

    git submodule init
    git submodule update

TODO
----

 * Add maven goal to avoid manual call to git submodule init.
 * Make hpack-test-case update itself from git, and run new tests.

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

These are the primary classes involved with establishing, sharing, and terminating connections:

package okhttp3

import assertk.assertThat
import assertk.assertions.matches
import org.junit.jupiter.api.Test

class OkHttpTest {
  @Test
  fun testVersion() {
    assertThat(OkHttp.VERSION).matches(Regex("[0-9]+\\.[0-9]+\\.[0-9]+(-.+)?"))
  }

OkCurl
======

_A curl for the next-generation web._

OkCurl is an OkHttp-backed curl clone which allows you to test OkHttp's HTTP engine (including
HTTP/2) against web servers.

To run locally, make sure you have GRAALVM_HOME set and run

```bash
./okcurl

plugins {
  kotlin("jvm")
  id("com.gradleup.shadow")
}

tasks.compileJava {
  options.isWarnings = false
}

tasks.jar {
  manifest {
    attributes("Main-Class" to "okhttp3.sample.SampleServer")
  }
}

dependencies {
  implementation(projects.okhttp)
  implementation(projects.mockwebserver)
}

tasks.shadowJar {
  mergeServiceFiles()

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="okhttp.android.regression">
  <uses-permission android:name="android.permission.INTERNET" />

  <!-- For HttpEngine -->
  <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />