// Future should be collected because whenAll*Complete* doesn't need to look at its result.
    GcFinalization.awaitClear(futureRef);
  }

  @J2ktIncompatible
  @GwtIncompatible
  public void testWhenAllSucceed_releasesCallable() throws Exception {
    @SuppressWarnings("AnonymousToLambda") // We want an instance that can be GCed.
    AsyncCallable<Long> combiner =
        new AsyncCallable<Long>() {
          @Override

    // Future should be collected because whenAll*Complete* doesn't need to look at its result.
    GcFinalization.awaitClear(futureRef);
  }

  @J2ktIncompatible
  @GwtIncompatible
  public void testWhenAllSucceed_releasesCallable() throws Exception {
    @SuppressWarnings("AnonymousToLambda") // We want an instance that can be GCed.
    AsyncCallable<Long> combiner =
        new AsyncCallable<Long>() {
          @Override