when:
        buildScript '''
            @Managed
            interface Named {
                String getName()
            }

            @Managed
            abstract class Person implements Named {
                abstract void setName(String name)
            }

            class RulePlugin extends RuleSource {
                @Model

    def "can create and initialize elements"() {
        when:
        buildScript '''
            @Managed
            interface Thing {
                String getName()
                void setName(String name)
            }

            model {
                thing1(Thing) {
                    name = "foo"
                }
                tasks {
                    create("echo") {

        values
    }

    def getSigningPropertiesSet(setName = DEFAULT_KEY_SET) {
        def properties = [:]
        properties.keyId = getKeyResourceFile(setName, "keyId.txt").text.trim()
        properties.secretKeyRingFile = getKeyResourceFile(setName, "secring.gpg").absolutePath
        properties.password = getKeyResourceFile(setName, "password.txt").text.trim()
        properties
    }

    def "mutating managed inputs of a rule is not allowed"() {
        when:
        buildScript '''
            @Managed
            interface Person {
                String getName()
                void setName(String name)
            }

            class RulePlugin extends RuleSource {
                @Model
                void person(Person person) {
                }

                @Model

        syspropActivated.setId("syspropActivated");

        Activation syspropActivation = new Activation();

        ActivationProperty syspropProperty = new ActivationProperty();
        syspropProperty.setName("java.version");

        syspropActivation.setProperty(syspropProperty);

        syspropActivated.setActivation(syspropActivation);

        Profile defaultActivated = new Profile();

        try {
            submodule = git.submoduleAdd().
                setURI(submoduleRepo.getWorkTree().toString()).
                setPath(submoduleRepo.getName()).
                call();
            return commit("add submodule " + submoduleRepo.getName(), submoduleRepo.getName());
        } finally {
            if (submodule != null) {
                submodule.close();
            }
        }
    }

    /**

            if (profileProp != null) {
                ActivationProperty prop = new ActivationProperty();

                prop.setName(profileProp.getName());
                prop.setValue(profileProp.getValue());

                activation.setProperty(prop);
            }

            ActivationOS profileOs = profileActivation.getOs();

        mojoDescriptor.setPluginDescriptor(pluginDescriptor);

        Parameter parameter = new Parameter();
        parameter.setType("java.lang.String[]");
        parameter.setName("toAddresses");

        parameter.setRequired(true);

        PluginParameterException exception =
                new PluginParameterException(mojoDescriptor, Collections.singletonList(parameter));

            interface Person {
                String getName();
                void setName(String name);
            }

            class RulePlugin extends RuleSource {
                @Model
                void createPerson(Person person) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
                    Method setter = person.getClass().getMethod("setName", String.class);

    }

    protected void invalidateDescriptor() {
        descriptor = null;
    }

    protected abstract T createDescriptor();

    @Override
    public void setName(String name) {
        invalidateDescriptor();
        super.setName(name);
    }