public void beforeMutate(Describable displayName) {
            if (disallowChanges) {
                throw new IllegalStateException(String.format("The value for %s cannot be changed any further.", displayName.getDisplayName()));
            }
        }

        @Override
        public void disallowChanges() {
            disallowChanges = true;
        }

        @Override

        0 * _

        when:
        property.finalizeValue()
        property.implicitFinalizeValue()
        property.implicitFinalizeValue()
        property.disallowChanges()

        then:
        0 * _
    }

    def "can finalize after changes disallowed"() {
        def property = propertyWithNoValue()
        def function = Mock(Callable)

                finalizeNow(context, ValueConsumer.IgnoreUnsafeRead);
            }
        }
    }

    @Override
    public void disallowChanges() {
        state.disallowChanges();
    }

    @Override
    public void finalizeValueOnRead() {
        state.finalizeOnNextGet();
    }

    @Override
    public void implicitFinalizeValue() {

        valueState = valueState.finalState();
    }

    public boolean isFinalizing() {
        return valueState.isFinalizing();
    }

    @Override
    public void disallowChanges() {
        valueState.disallowChanges();
    }

    @Override
    public void finalizeValueOnRead() {
        valueState.finalizeOnNextGet();
    }

    @Override
    public void implicitFinalizeValue() {

    }

    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.'
    }