* close any unnecessary connections. This test confirms that behavior works as intended.
   *
   * This test uses proxy tunnels to get a hook while a connection is being established.
   */
  @ParameterizedTest
  @ArgumentsSource(ProtocolParamProvider::class)
  fun concurrentHttp2ConnectionsDeduplicated(
    protocol: Protocol,

}

android {
  compileSdk = 34

  namespace = "okhttp.android.regression"

  defaultConfig {
    minSdk = 21
    targetSdk = 34

    // Make sure to use the AndroidJUnitRunner (or a sub-class) in order to hook in the JUnit 5 Test Builder
    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
    testInstrumentationRunnerArguments += mapOf(

    val candidate = connectionUser.candidateConnection() ?: return null

    // Make sure this connection is healthy & eligible for new exchanges. If it's no longer needed
    // then we're on the hook to close it.
    val healthy = candidate.isHealthy(connectionUser.doExtensiveHealthChecks())
    var noNewExchangesEvent = false
    val toClose: Socket? =
      candidate.withLock {
        when {
          !healthy -> {

    returned.

 *  Upgrade: [Okio 3.9.0][okio_3_9_0].

 *  Upgrade: [Kotlin 1.9.23][kotlin_1_9_23].

 *  Upgrade: [Unicode® IDNA 15.1.0][idna_15_1_0]


## Version 5.0.0-alpha.12

_2023-12-17_

We took too long to cut this release and there's a lot of changes in it. We've been busy.

Although this release is labeled _alpha_, the only unstable thing in it is our new APIs. This

    check(latch.await(30, TimeUnit.SECONDS)) { "Timed out waiting for test $number to finish." }
    val endNanos = System.nanoTime()
    val tookMs = TimeUnit.NANOSECONDS.toMillis(endNanos - startNanos.get())
    println("Took ${tookMs}ms")
  }

  private fun getTestCount(): Long {
    val latch = CountDownLatch(1)
    val countRef = AtomicLong()
    val failureRef = AtomicReference<Throwable>()

    newWebSocket(

import okio.ByteString.Companion.toByteString

/**
 * Logs SSL keys to a log file, allowing Wireshark to decode traffic and be examined with http2
 * filter. The approach is to hook into JSSE log events for the messages between client and server
 * during handshake, and then take the agreed masterSecret from private fields of the session.
 *

      if (connection.isHealthy(doExtensiveHealthChecks)) return connection

      // In the second synchronized block, release the unhealthy acquired connection. We're also on
      // the hook to close this connection if it's no longer in use.
      val noNewExchangesEvent: Boolean
      val toClose: Socket? =
        connection.withLock {
          noNewExchangesEvent = !connection.noNewExchanges

01AC          ; mapped                 ; 01AD          # 1.1  LATIN CAPITAL LETTER T WITH HOOK
01AD          ; valid                                  # 1.1  LATIN SMALL LETTER T WITH HOOK
01AE          ; mapped                 ; 0288          # 1.1  LATIN CAPITAL LETTER T WITH RETROFLEX HOOK

android {
  compileSdk = 34

  namespace = "okhttp.android.test"

  defaultConfig {
    minSdk = 21

    // Make sure to use the AndroidJUnitRunner (or a sub-class) in order to hook in the JUnit 5 Test Builder
    testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
    testInstrumentationRunnerArguments += mapOf(
      "runnerBuilder" to "de.mannodermaus.junit5.AndroidJUnit5Builder",

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