}

    def "cannot set to empty list after changes disallowed"() {
        given:
        def property = property()
        property.set(someValue())
        property.disallowChanges()

        when:
        property.empty()

        then:
        def e = thrown(IllegalStateException)
        e.message == 'The value for this property cannot be changed any further.'
    }

    }

    def "cannot set to empty map after changes disallowed"() {
        given:
        property.set(someValue())
        property.disallowChanges()
        when:
        property.empty()
        then:
        def e = thrown IllegalStateException
        e.message == 'The value for this property cannot be changed any further.'
    }

            def property = objects.property(Integer)
            property.set(provider)

            assert property.get() == 1
            assert property.get() == 2
            property.disallowChanges()
            assert property.get() == 3
            assert property.get() == 4

            property.set(12)
        """

        when:
        fails()

        then:

            def property = objects.mapProperty(Integer, Integer)
            property.set(provider)

            assert property.get() == [1: 2]
            assert property.get() == [3: 4]
            property.disallowChanges()
            assert property.get() == [5: 6]
            assert property.get() == [7: 8]

            property.set([1: 2])
            '''.stripIndent()

        when:
        fails()