Task finalizer1 = task("finalizer1", dependsOn: [finalizerDependency])
        Task finalized1 = task("finalized1", finalizedBy: [finalizer1])
        Task finalizer2 = task("finalizer2")
        Task finalized2 = task("finalized2", finalizedBy: [finalizer2], failure: new RuntimeException("failure"))

        when:
        addToGraphAndPopulate([finalized1, finalized2])

        then:

    def "finalizer task can depend on multiple finalized tasks"() {
        given:
        buildFile '''
            task finalizer(type: BreakingTask) {
                dependsOn 'finalized1', 'finalized2'
            }
            task finalized1(type: BreakingTask) {
                finalizedBy 'finalizer'
            }
            task finalized2(type: BreakingTask) {

			if finptrmask[0] == 0 {
				// Build pointer mask for Finalizer array in block.
				// Check assumptions made in finalizer1 array above.
				if (unsafe.Sizeof(finalizer{}) != 5*goarch.PtrSize ||
					unsafe.Offsetof(finalizer{}.fn) != 0 ||
					unsafe.Offsetof(finalizer{}.arg) != goarch.PtrSize ||
					unsafe.Offsetof(finalizer{}.nret) != 2*goarch.PtrSize ||
					unsafe.Offsetof(finalizer{}.fint) != 3*goarch.PtrSize ||

    def "detects a cycle with a task that mustRunAfter itself as finalizer of another task"() {
        buildFile << """
            def finalizer = tasks.register("finalizer")
            tasks.named("finalizer").configure {
                mustRunAfter(finalizer)
            }
            task myTask {
                finalizedBy finalizer
            }
        """
        expect:
        2.times {

			finalizers = sets.New(iop.GetFinalizers()...)
			finalizers.Delete(finalizer)
			iop.SetFinalizers(sets.SortedList(finalizers))
			finalizerError = r.client.Update(context.TODO(), iop)
		}
		if finalizerError != nil {
			if errors.IsNotFound(finalizerError) {
				scope.Infof("Did not remove finalizer from %s: the object was previously deleted.", iopName)
				metrics.CRDeletionTotal.Increment()
				return reconcile.Result{}, nil

		},
		{
			// same as 13-8 but multiple finalizers exists, only the pv deletion protection finalizer needs to be
			// removed and the in-tree pv deletion protection finalizer needs to be added.
			name:                "13-9 migration is enabled but plugin migration feature is disabled, volume has multiple finalizers including external PV deletion protection finalizer",

	claimClone := pvc.DeepCopy()
	claimClone.ObjectMeta.Finalizers = append(claimClone.ObjectMeta.Finalizers, volumeutil.PVCProtectionFinalizer)
	_, err := c.client.CoreV1().PersistentVolumeClaims(claimClone.Namespace).Update(ctx, claimClone, metav1.UpdateOptions{})
	logger := klog.FromContext(ctx)
	if err != nil {
		logger.Error(err, "Error adding protection finalizer to PVC", "PVC", klog.KObj(pvc))
		return err
	}

	runtime.SetFinalizer(k, (*PublicKeyRSA).finalize)
	return k, nil
}

func (k *PublicKeyRSA) finalize() {
	C._goboringcrypto_RSA_free(k._key)
}

func (k *PublicKeyRSA) withKey(f func(*C.GO_RSA) C.int) C.int {
	// Because of the finalizer, any time _key is passed to cgo, that call must
	// be followed by a call to runtime.KeepAlive, to make sure k is not
	// collected (and finalized) before the cgo call returns.

		return volume.Finalizers, false
	}
	if !metav1.HasAnnotation(volume.ObjectMeta, storagehelpers.AnnDynamicallyProvisioned) {
		// PV deletion protection finalizer is currently supported only for dynamically
		// provisioned volumes.
		return volume.Finalizers, false
	}
	if volume.Finalizers != nil {
		outFinalizers = append(outFinalizers, volume.Finalizers...)
	}

	// Try to queue the object's finalizer that we set earlier.
	GC()
	GC()

	if !BlockUntilEmptyFinalizerQueue(int64(2 * time.Second)) {
		t.Fatal("finalizer queue was never emptied")
	}
	if !finalized.Load() {
		t.Error("expected arena-referenced object to be finalized")
	}
}

func TestUserArenaClearsPointerBits(t *testing.T) {
	// This is a regression test for a serious issue wherein if pointer bits