public:
    explicit IncrementStackDepth(PredicateFactory* parent) : parent_(parent) {
      parent_->stack_depth_++;
    }

    bool HasOverflowed() const {
      const int kMaxStackDepth = 8;
      return parent_->stack_depth_ >= kMaxStackDepth;
    }

    ~IncrementStackDepth() { parent_->stack_depth_--; }

   private:
    PredicateFactory* parent_;
  };

  // A cache for the MakeNotPredicate function.

        def parent1 = Mock(ParentServices)
        def parent2 = Mock(ParentServices)
        def registry = new DefaultServiceRegistry(registry(parent1), registry(parent2))

        when:
        def result = registry.get(BigDecimal)

        then:
        result == value

        and:
        1 * parent1.get(BigDecimal) >> null
        1 * parent2.get(BigDecimal) >> value
    }

		ExpectXML: `<result>` +
			`<parent>` +
			`<c>C</c>` +
			`<b>B</b>` +
			`<a>A</a>` +
			`</parent>` +
			`</result>`,
	},
	{
		Value: &NilTest{A: "A", B: nil, C: "C"},
		ExpectXML: `<NilTest>` +
			`<parent1>` +
			`<parent2><a>A</a></parent2>` +
			`<parent2><c>C</c></parent2>` +
			`</parent1>` +
			`</NilTest>`,
		MarshalOnly: true, // Uses interface{}
	},

    private static ServiceProvider setupParentServices(ServiceRegistry[] parents) {
        ServiceProvider parentServices;
        if (parents.length == 1) {
            parentServices = toParentServices(parents[0]);
        } else {
            ServiceProvider[] parentServiceProviders = new ServiceProvider[parents.length];
            for (int i = 0; i < parents.length; i++) {

(ClassName.OPEN)\n      })\n    }\n\n    toggle(event) {\n\n      const $relativeTarget = $(event.currentTarget)\n      const $parent = $relativeTarget.parent()\n\n      let treeviewMenu = $parent.find('> ' + Selector.TREEVIEW_MENU)\n\n      if (!treeviewMenu.is(Selector.TREEVIEW_MENU)) {\n\n        if (!$parent.is(Selector.LI)) {\n          treeviewMenu = $parent.parent().find('> ' + Selector.TREEVIEW_MENU)\n        }\n\n        if (!treeviewMenu.is(Selector.TREEVIEW_MENU)) {\n          return\n...

			routeKey = obj.Namespace
			if parent.OriginalReference.Port != nil {
				routes = augmentPortMatch(routes, *parent.OriginalReference.Port)
				routeKey += fmt.Sprintf("/%d", *parent.OriginalReference.Port)
			}
			if parent.InternalKind == gvk.ServiceEntry {
				vsHosts = serviceEntryHosts(ctx.ServiceEntry,
					string(parent.OriginalReference.Name),

		{
			name:     "creates new",
			parent:   &ss1.ObjectMeta,
			revision: ss1Rev1,
			existing: nil,

			rename: false,
		},
		{
			name:     "create doesn't conflict when parents differ",
			parent:   &ss2.ObjectMeta,
			revision: ss2Rev1,
			existing: []struct {
				parent   metav1.Object
				revision *apps.ControllerRevision
			}{
				{
					parent:   ss1,
					revision: ss1Rev1,
				},

            throws ModelBuilderException {
        problems.setSource(childModel);

        Parent parent = childModel.getParent();

        String groupId = parent.getGroupId();
        String artifactId = parent.getArtifactId();
        String version = parent.getVersion();

        ModelResolver modelResolver = getModelResolver(request);
        Objects.requireNonNull(

        OperationDescriptor parent = getParentDescriptor(descriptor.getParentId());
        return new DefaultOperationDescriptor(descriptor, parent);
    }

    private synchronized @Nullable OperationDescriptor getParentDescriptor(@Nullable Object parentId) {
        if (parentId == null) {
            return null;
        } else {

            throws ModelBuildingException {
        problems.setSource(childModel);

        Parent parent = childModel.getParent();

        String groupId = parent.getGroupId();
        String artifactId = parent.getArtifactId();
        String version = parent.getVersion();

        ModelResolver modelResolver = request.getModelResolver();
        Objects.requireNonNull(