}

            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) {

            apply type: RulePlugin
        '''

        then:
        fails "accessGenerativeName"

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

    def "non-abstract setters implemented as default interface methods are not allowed"() {
        when:
        file('buildSrc/src/main/java/Rules.java') << '''
            import org.gradle.api.*;

        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:

					case 1:
						*ptr = set[0]
					default:
						err = fmt.Errorf("conflicting options set: %v", set)
					}
				}
			}
		}
		setters = append(setters, setter)
	}

	return func() error {
		// Apply the setter for every flag.
		for _, setter := range setters {
			setter()
			if err != nil {
				return err
			}
		}
		return nil
	}
}

// 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;
    }

    strings::StrAppend(&setters, attr_comment);
    strings::StrAppend(&setters, "    TF_MUST_USE_RESULT Attrs ", attr_func_def,
                       " x) {\n");
    strings::StrAppend(&setters, "      Attrs ret = *this;\n");
    strings::StrAppend(&setters, "      ret.", api_def_attr.rename_to(),
                       "_ = x;\n");
    strings::StrAppend(&setters, "      return ret;\n    }\n\n");

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)
    }

    }

    private static String getMessage(String propertyName) {
        return String.format(
            "unmanaged property '%s' cannot be read only, unmanaged properties must have setters",
            propertyName);
    }