1. Add an Emulator named `pixel5`, if you don't already have one

```
$ sdkmanager --install "system-images;android-29;google_apis;x86"
$ echo "no" | avdmanager --verbose create avd --force --name "pixel5" --device "pixel" --package "system-images;android-29;google_apis;x86" --tag "google_apis" --abi "x86"
```

2. Run an Emulator using Android Studio or from command line.

```

        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: ${{ matrix.api-level }}
          force-avd-creation: false
          arch: ${{ matrix.api-level >= 30 && 'x86_64' || 'x86' }}
          # No window, no audio, and use swiftshader for headless environments
          emulator-options: >
            -no-window
            -gpu swiftshader_indirect

     * under the JVM. (We could arrange for one if we really wanted, but that will break once the
     * JDK further restricts access to Unsafe.) But we have coverage under an Android emulator,
     * which uses UnsafeAtomicHelper when it runs AbstractFutureTest itself.
     */

    runTestMethod(NO_ATOMIC_REFERENCE_FIELD_UPDATER);
    // TODO(lukes): assert that the logs are full of errors
  }

	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

	// In case we're booting a device or emulator alongside all.bash, wait for
	// it to be ready. adb wait-for-device is not enough, we have to
	// wait for sys.boot_completed.

    assertTrue(future3.isCancelled());
    assertTrue(future3.wasInterrupted());
  }

  @AndroidIncompatible // runs out of memory under some versions of the emulator
  public void testCancellingAllDelegatesIsNotQuadratic() throws Exception {
    ImmutableList.Builder<SettableFuture<Long>> builder = ImmutableList.builder();
    for (int i = 0; i < 500_000; i++) {

    assertTrue(future3.isCancelled());
    assertTrue(future3.wasInterrupted());
  }

  @AndroidIncompatible // runs out of memory under some versions of the emulator
  public void testCancellingAllDelegatesIsNotQuadratic() throws Exception {
    ImmutableList.Builder<SettableFuture<Long>> builder = ImmutableList.builder();
    for (int i = 0; i < 500_000; i++) {

import org.jspecify.annotations.Nullable;

/**
 * GWT emulation of {@link com.google.common.collect.ImmutableSortedSet}.
 *
 * @author Hayward Chan
 */
public abstract class ImmutableSortedSet<E> extends ForwardingImmutableSet<E>
    implements SortedSet<E>, SortedIterable<E> {
  // TODO(cpovirk): split into ImmutableSortedSet/ForwardingImmutableSortedSet?

  // In the non-emulated source, this is in ImmutableSortedSetFauxverideShim,

  @Override
  ContiguousSet<C> tailSetImpl(C fromElement, boolean inclusive) {
    return intersectionInCurrentDomain(Range.downTo(fromElement, BoundType.forBoolean(inclusive)));
  }

  @GwtIncompatible // not used by GWT emulation
  @Override
  int indexOf(@Nullable Object target) {
    if (!contains(target)) {
      return -1;
    }
    // The cast is safe because of the contains check—at least for any reasonable Comparable class.

  @Override
  ContiguousSet<C> tailSetImpl(C fromElement, boolean inclusive) {
    return intersectionInCurrentDomain(Range.downTo(fromElement, BoundType.forBoolean(inclusive)));
  }

  @GwtIncompatible // not used by GWT emulation
  @Override
  int indexOf(@Nullable Object target) {
    if (!contains(target)) {
      return -1;
    }
    // The cast is safe because of the contains check—at least for any reasonable Comparable class.

  /**
   * When {@code true}, the annotated type is emulated in GWT. The emulated source (also known as
   * super-source) is different from the implementation used by the JVM.
   *
   * @see <a href=
   *     "https://www.gwtproject.org/doc/latest/DevGuideOrganizingProjects.html#DevGuideModules">
   *     Documentation about GWT emulated source</a>
   */
  boolean emulated() default false;