return self
                    }
                    maxPages * execute() >> {
                        Objects objects = new Objects()
                        objects.setItems(Collections.singletonList(new StorageObject()))
                        objects.setNextPageToken(page < maxPages - 1 ? Integer.toString(page) : null)
                        page++
                        return objects

        @Managed
        interface Container {
            @Unmanaged
            List<Widget> getWidgets()
            void setWidgets(List<Widget> l)

            @Unmanaged
            Set<Widget> getItems()
            void setItems(Set<Widget> s)

            @Unmanaged
            List getRawWidgets()
            void setRawWidgets(List l)
        }

        class Rules extends RuleSource {
            @Model

            Set<JavaMethod> setters = gettersAndSetters.get(Boolean.FALSE).stream().map(Accessor::getMethod).collect(toSet());
            if (!getters.isEmpty() && !setters.isEmpty()) {
                return new Accessors(owningClass, propertyName, getters, setters);
            }

            }
        }

        if (setters.size() != getters.size()) {
            throwParameterValidationError(clazz, "It contains a different number of getters and setters.");
        }

        for (String property : setters.keySet()) {
            if (!getters.containsKey(property)) {

            }

            apply type: RulePlugin
        '''

        then:
        fails 'tasks'

        and:
        failure.assertHasCause("Calling setters of a managed type on itself is not allowed")
    }

    def "calling setters of super class from non-abstract getters is not allowed"() {
        when:
        defineCallsSetterInNonAbstractGetterClass()
        buildFile << '''
            @Managed

    }

    @Override
    public Collection<Method> getSetters() {
        return setters.getValues();
    }

    @Nullable
    @Override
    public Field getBackingField() {
        return field;
    }

    void addGetter(Method method) {
        getters.add(method);
    }

    void addSetter(Method method) {
        setters.add(method);
    }

    void field(Field field) {

        IllegalArgumentException e = thrown()
        e.message == "org.gradle.tooling.internal.consumer.connection.ToolingParameterProxyTest\$InvalidParameter4 is not a valid parameter type. It contains a different number of getters and setters."
    }

    def "returns parameter invalid when no setter for getter"() {
        when:
        ToolingParameterProxy.validateParameter(InvalidParameter5)

        then:

// tag::tar[]
tasks.register<Tar>("tar") {
    from("src/dist")
    into("libs") {
        from(configurations.runtimeClasspath)
    }
}
// end::tar[]

// TODO why can't we use properties instead of setters here?
// when using them, we get "Cannot access 'preserveFileTimestamps': it is private in 'AbstractArchiveTask'"
// tag::reproducible[]
tasks.withType<AbstractArchiveTask>().configureEach {
    isPreserveFileTimestamps = false

        return words;
    }

    public int getNum() {
        return num;
    }

    public long getTotal() {
        return total;
    }

    public List<SuggestItem> getItems() {
        return items;
    }

import org.gradle.model.Managed

class SetModelProjectionTest extends AbstractCollectionModelProjectionTest<String, Set<String>> {

    @Managed
    static interface Internal {
        Set<String> getItems()
    }

    @Override
    Class<?> holderType() {
        Internal
    }

    @Override
    Set<String> checkable(List<String> list) {
        new LinkedHashSet<String>(list)
    }