A managed collection can not contain 'java.io.FileInputStream's
A valid managed collection takes the form of ModelSet<T> or ModelMap<T> where 'T' is:
        - A managed type (annotated with @Managed)""")
    }

    @Managed
    interface ManagedWithInvalidModelMap {
        ModelMap<FileInputStream> getMap()
    }

    @Managed
    interface ManagedWithUnsupportedType {

        ex.message == """Type ${fullyQualifiedNameOf(HasUnmanagedOnManaged)} is not a valid managed type:
- Property 'myEnum' is not valid: it is marked as @Unmanaged, but is of @Managed type '${getName(MyEnum)}'; please remove the @Managed annotation"""
    }

    @Managed
    static interface NoSetterForUnmanaged {
        @Unmanaged
        InputStream getThing();
    }

    def "must have setter for unmanaged"() {

- type parameter of $ModelSet.name has to be specified"""
    }

    @Managed
    interface Thing {}

    @Managed
    interface SpecialThing extends Thing {}

    @Managed
    interface SimpleModel {
        Thing getThing()
    }

    @Managed
    interface SpecialModel extends SimpleModel {
        SpecialThing getThing()

println(instance.name) // Prints: myName
----

[[managed_types]]
== Using Gradle Managed Types

A managed type as an abstract class or interface with no fields and whose properties are all managed.
These types have their state entirely managed by Gradle.

For example, this managed type is defined as an interface:

[source,java]
.Resource.java
----

        where:
        type << MANAGED_SCALAR_COLLECTION_TYPES

    }

    def "reports problem when managed type declares a #type of managed type"() {
        when:
        buildScript """
        @Managed
        interface Thing { }

        @Managed
        interface Container {
            $type<Thing> getItems()
        }

        model {
            container(Container)

        """

        expect:
        succeeds "validate"
    }

    def "user can target managed internal views of a custom managed LanguageSourceSet with rules"() {
        given:
        buildFile << """
            @Managed interface CustomManagedLSS extends LanguageSourceSet {}
            @Managed interface CustomManagedLSSInternal extends CustomManagedLSS {
                String getInternal()

    }

    def "rule can target nested element of managed element as input through a reference to managed element"() {
        when:
        buildScript '''
            @Managed
            interface Platform {
                OperatingSystem getOperatingSystem()
                void setOperatingSystem(OperatingSystem os)
            }

            @Managed
            interface OperatingSystem {

        output.contains "setStrings: [[a], [b]]"
    }

    def "managed model type has property of collection of managed types"() {
        when:
        buildScript '''
            @Managed
            interface Person {
              String getName()
              void setName(String string)
            }

            @Managed
            interface Group {
              String getName()

type NoopManager struct{}

func (NoopManager) Apply(liveObj, appliedObj runtime.Object, managed internal.Managed, fieldManager string, force bool) (runtime.Object, internal.Managed, error) {
	return nil, managed, nil
}

func (NoopManager) Update(liveObj, newObj runtime.Object, managed internal.Managed, manager string) (runtime.Object, internal.Managed, error) {
	return nil, nil, nil
}

    }

    @Managed
    static interface BooleanGetter1 {
        boolean getFlag()
    }

    @Managed
    static interface BooleanGetter2 {
        boolean isFlag()
    }

    @Managed
    static interface BooleanGetter3 {
        boolean getFlag()

        boolean isFlag()
    }

    @Managed