withBuildScript("""
            plugins { id("my-plugin") }

            extensions.getByType(MyExtension::class).some("api.get")
            extensions.configure<MyExtension> { some("api.configure") }
            the<MyExtension>().some("kotlin.reified.get")
            the(MyExtension::class).some("kotlin.kclass.get")
            configure<MyExtension> { some("kotlin.configure") }
            my.some("accessor.get")

class MyPlugin implements Plugin<Project> {
    void apply(Project project) {
        // Create and configure the extension
        def extension = project.extensions.create("myExtension", MyExtension)
        // Create and configure the custom task
        project.tasks.register("myTask", MyCustomTask) {
            group = "custom"
            inputParameter = extension.inputParameter
        }
    }
}

class MyPlugin : Plugin<Project> {
    override fun apply(project: Project) {
        // Create and configure the extension
        val extension = project.extensions.create("myExtension", MyExtension::class.java)
        // Create and configure the custom task
        project.tasks.register("myTask", MyCustomTask::class.java) {
            group = "custom"
            inputParameter = extension.inputParameter

        given:
        buildFile << '''
        interface MyExtension {
            MapProperty<String, String> getProp()
        }

        project.extensions.create('myExt', MyExtension)

        task wrongValueTypeDsl {
            def myExt = project.extensions.getByType(MyExtension)
            doLast {
                myExt.prop = 123
            }
        }

                    MyExtension myExtension(ExtensionContainer extensions) {
                        extensions.getByType(MyExtension)
                    }

                    @Model
                    String value(MyExtension myExtension) {
                        myExtension.value
                    }

                    @Mutate
                    void addTasks(ModelMap<Task> tasks, String value) {

Jendrik Johannes <******@****.***> 1607501645 +0100

Bo Zhang <******@****.***> 1716961791 +0800

                    val rootExtension = extensions.create("rootExtension", MyExtension::class.java, "root")

                    val rootExtensionNestedExtension = rootExtension.extensions.create("nestedExtension", MyExtension::class.java, "nested-in-extension")
                    rootExtensionNestedExtension.extensions.add("deepExtension", listOf("foo", "bar"))

apiVersion: extensions/v1beta1
kind: ReplicaSet
metadata:
  annotations:
    annotationsKey: annotationsValue
  creationTimestamp: "2008-01-01T01:01:01Z"
  deletionGracePeriodSeconds: 10
  deletionTimestamp: "2009-01-01T01:01:01Z"
  finalizers:
  - finalizersValue
  generateName: generateNameValue
  generation: 7
  labels:
    labelsKey: labelsValue
  managedFields:
  - apiVersion: apiVersionValue
    fieldsType: fieldsTypeValue

{
  "kind": "ReplicaSet",
  "apiVersion": "extensions/v1beta1",
  "metadata": {
    "name": "nameValue",
    "generateName": "generateNameValue",
    "namespace": "namespaceValue",
    "selfLink": "selfLinkValue",
    "uid": "uidValue",
    "resourceVersion": "resourceVersionValue",
    "generation": 7,
    "creationTimestamp": "2008-01-01T01:01:01Z",
    "deletionTimestamp": "2009-01-01T01:01:01Z",
    "deletionGracePeriodSeconds": 10,