BuildPlan plan = calculateLifecycleMappings(projects, "all");
        assertNotNull(plan);
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(p, "before:each"));
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(c1, "before:all"));
        assertIsSuccessor(plan.requiredStep(p, "before:all"), plan.requiredStep(c2, "before:all"));

 */
class ForceConnectRoutePlanner(
  private val delegate: RealRoutePlanner,
) : RoutePlanner by delegate {
  override fun plan(): RoutePlanner.Plan = delegate.planConnect() // not delegate.plan()

        canceled -> {
          events += "plan $id TCP connect canceled"
          ConnectResult(this, nextPlan = connectTcpNextPlan, throwable = IOException("canceled"))
        }
        connectTcpNextPlan != null -> {
          events += "plan $id needs follow-up"
          ConnectResult(this, nextPlan = connectTcpNextPlan)
        }
        else -> {
          events += "plan $id TCP connected"

                plan.then(segment);
            }

            // Create plan, setup and teardown
            for (MavenProject project : plan.getAllProjects().keySet()) {
                BuildStep pplan = new BuildStep(PLAN, project, null);
                pplan.status.set(PLANNING); // the plan step always need planning

{* ../../docs_src/background_tasks/tutorial002.py hl[13,15,22,25] *}

Dans cet exemple, les messages seront écrits dans le fichier `log.txt` après que la réponse soit envoyée.

S'il y avait une `query` (paramètre nommé `q`) dans la requête, alors elle sera écrite dans `log.txt` via une tâche d'arrière-plan.

    while (true) {
      if (routePlanner.isCanceled()) throw IOException("Canceled")

      try {
        val plan = routePlanner.plan()

        if (!plan.isReady) {
          val tcpConnectResult = plan.connectTcp()
          val connectResult =
            when {
              tcpConnectResult.isSuccess -> plan.connectTlsEtc()
              else -> tcpConnectResult
            }

        // There is only a single threadsafe plugin here...
        assertEquals(plan.size() - 1, unSafePlugins.size());
    }

    @Test
    void testFindLastWhenFirst() throws Exception {
        MavenExecutionPlan plan = LifecycleExecutionPlanCalculatorStub.getProjectAExecutionPlan();

        ExecutionPlanItem beerPhase = plan.findLastInPhase(

  private val call: RealCall,
  private val routePlanner: RealRoutePlanner,
  // Specifics to this plan.
  override val route: Route,
  internal val routes: List<Route>?,
  private val attempt: Int,
  private val tunnelRequest: Request?,
  internal val connectionSpecIndex: Int,
  internal val isTlsFallback: Boolean,
) : RoutePlanner.Plan,
  ExchangeCodec.Carrier {
  /** True if this connect was canceled; typically because it lost a race. */

    }

    taskFaker.runTasks()
    assertEvents(
      "take plan 0",
      "plan 0 TCP connecting...",
      "plan 0 TCP connected",
      "plan 0 TLS connecting...",
      "plan 0 needs follow-up",
      "plan 1 TCP connecting...",
      "plan 1 TCP connected",
      "plan 1 TLS connecting...",
      "plan 1 TLS connected",
    )

    taskFaker.assertNoMoreTasks()
  }

  /**

    if (plan is FailedPlan) return plan.result

    // Connect TCP asynchronously.
    tcpConnectsInFlight += plan
    val taskName = "$okHttpName connect ${routePlanner.address.url.redact()}"
    taskRunner.newQueue().schedule(
      object : Task(taskName) {
        override fun runOnce(): Long {
          val connectResult =
            try {
              plan.connectTcp()