cancelActiveTask = true
    }

    var tasksCanceled = false
    for (i in futureTasks.size - 1 downTo 0) {
      if (futureTasks[i].cancelable) {
        taskRunner.logger.taskLog(futureTasks[i], this) { "canceled" }
        tasksCanceled = true
        futureTasks.removeAt(i)
      }
    }
    return tasksCanceled
  }

  override fun toString(): String = name

  /** Queues with tasks that are currently executing their [TaskQueue.activeTask]. */
  private val busyQueues = mutableListOf<TaskQueue>()

  /** Queues not in [busyQueues] that have non-empty [TaskQueue.futureTasks]. */
  private val readyQueues = mutableListOf<TaskQueue>()

  private val runnable: Runnable =
    object : Runnable {
      override fun run() {
        var task: Task =
          withLock {

 */
abstract class Task(
  val name: String,
  val cancelable: Boolean = true,
) {
  // Guarded by the TaskRunner.
  internal var queue: TaskQueue? = null

  /** Undefined unless this is in [TaskQueue.futureTasks]. */
  internal var nextExecuteNanoTime = -1L

  /** Returns the delay in nanoseconds until the next execution, or -1L to not reschedule. */
  abstract fun runOnce(): Long

  internal fun initQueue(queue: TaskQueue) {

  private fun serviceSocketTask(socket: BufferedSocket): FutureTask<Void> {
    return FutureTask<Void> {
      socket.source.use {
        socket.sink.use {
          while (true) {
            val action = actions.poll() ?: break
            action(socket)
          }
        }
      }
      return@FutureTask null
    }
  }

import java.util.concurrent.Executor;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * A {@link FutureTask} that also implements the {@link ListenableFuture} interface. Unlike {@code
 * FutureTask}, {@code ListenableFutureTask} does not provide an overrideable {@link

import java.util.concurrent.CompletionService;
import java.util.concurrent.Future;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;

import org.apache.maven.lifecycle.internal.ProjectSegment;

/**
 */
public class CompletionServiceStub implements CompletionService<ProjectSegment> {
    List<FutureTask<ProjectSegment>> projectBuildFutureTasks = Collections.synchronizedList(new ArrayList<>());

import java.util.concurrent.Executor;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import org.jspecify.annotations.Nullable;

/**
 * A {@link FutureTask} that also implements the {@link ListenableFuture} interface. Unlike {@code
 * FutureTask}, {@code ListenableFutureTask} does not provide an overrideable {@link

        new Runnable() {
          @Override
          public void run() {
            threadLocalCount.set(threadLocalCount.get() + 1);
          }
        };

    FutureTask<@Nullable Void> otherTask =
        new FutureTask<>(
            () -> {
              Future<?> future = executor.submit(incrementTask);
              assertTrue(future.isDone());

        new Runnable() {
          @Override
          public void run() {
            threadLocalCount.set(threadLocalCount.get() + 1);
          }
        };

    FutureTask<@Nullable Void> otherTask =
        new FutureTask<>(
            () -> {
              Future<?> future = executor.submit(incrementTask);
              assertTrue(future.isDone());

    Runnable runChosenTest =
        new Runnable() {
          @Override
          public void run() {
            runChosenTest();
          }
        };
    FutureTask<@Nullable Void> task = new FutureTask<>(runChosenTest, null);
    startThread(
        new Runnable() {
          @Override
          public void run() {
            task.run();
          }
        });