def action = ConfigureUtil.configureUsing(null)
        action.execute(obj)
        ConfigureUtil.configureSelf(null, obj)

        then:
        obj.empty
    }

    def canConfigureObjectUsingClosure() {
        given:
        List obj = []
        def cl = {
            add('a');
            assertThat(size(), equalTo(1));
            assertThat(obj, equalTo(['a']))
        }

        when: