primitiveTypes.longPropertyFromInt = 123
                    primitiveTypes.longPropertyFromInteger = new Integer(321)
                }

                @Mutate
                void addCheckTask(ModelMap<Task> tasks, final PrimitiveTypes primitiveTypes) {
                    tasks.create("check") {
                        it.doLast {
                            assert primitiveTypes.longPropertyFromInt == 123

            void createContainer(Container c) {}

            @Mutate
            void addItems(Container c) {
                c.items.add 'foo'
            }

            @Mutate
            void addCheckTask(ModelMap<Task> tasks, Container c) {
                tasks.create('check') {
                    assert c.items == ['foo'] as $type
                }
            }
        }

        apply plugin: Rules

                c.items.add new Widget()
                c.widgets.add new Widget()
                c.rawWidgets.add new Widget()
            }

            @Mutate
            void addCheckTask(ModelMap<Task> tasks, Container c) {
                tasks.create('check') {
                    assert c.items.size() == 1
                    assert c.widgets.size() == 1
                    assert c.rawWidgets.size() == 1