// ClientHello is optionally followed by extension data
		return true
	}

	var extensions cryptobyte.String
	if !s.ReadUint16LengthPrefixed(&extensions) || !s.Empty() {
		return false
	}

	seenExts := make(map[uint16]bool)
	for !extensions.Empty() {
		var extension uint16
		var extData cryptobyte.String
		if !extensions.ReadUint16(&extension) ||
			!extensions.ReadUint16LengthPrefixed(&extData) {

    void apply(Project project) {
        // Add the 'greeting' extension object
        def extension = project.extensions.create('greeting', GreetingPluginExtension)
        // Add a task that uses configuration from the extension object
        project.task('hello') {
            doLast {
                println extension.message.get()
            }
        }
    }
}

apply plugin: GreetingPlugin

    void apply(Project project) {
        def extension = project.extensions.create('greeting', GreetingPluginExtension)
        project.task('hello') {
            doLast {
                println "${extension.message.get()} from ${extension.greeter.get()}"
            }
        }
    }
}

apply plugin: GreetingPlugin

// Configure the extension using a DSL block
greeting {
    message = 'Hi'

			return nil, errors.New("x509: malformed extensions")
		}
		for !extensions.Empty() {
			var extension cryptobyte.String
			if !extensions.ReadASN1(&extension, cryptobyte_asn1.SEQUENCE) {
				return nil, errors.New("x509: malformed extension")
			}
			ext, err := parseExtension(extension)
			if err != nil {
				return nil, err
			}

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
        }
    }
}

                }
            }
            // Configure the non-existent extension for error handling
            ?: extensions.configure(type, configuration)
    }


/**
 * Returns the [project extension][org.gradle.api.plugins.ExtensionAware] of the specified type.
 *
 * If no extension is found, returns a project convention if available.

    override fun apply(project: Project) {
        val extension = project.extensions.create<GreetingPluginExtension>("greeting")
        project.task("hello") {
            doLast {
                println("${extension.message.get()} from ${extension.greeter.get()}")
            }
        }
    }
}

apply<GreetingPlugin>()

// Configure the extension using a DSL block
configure<GreetingPluginExtension> {

    @Issue("GRADLE-3460")
    def "extension configuration method is preferred over property with closure value"() {
        given:
        buildFile """
class ContactExtension {
    String prop
}

class ContactPlugin implements Plugin<Project> {
    public void apply(Project project) {
        ContactExtension extension = project.extensions.create('contacts', ContactExtension)

	// or x-kubernetes-int-or-string is true.
	Type     string
	Title    string
	Default  JSON
	Nullable bool
}

// +k8s:deepcopy-gen=true

// Extensions contains the Kubernetes OpenAPI v3 vendor extensions.
type Extensions struct {
	// x-kubernetes-preserve-unknown-fields stops the API server
	// decoding step from pruning fields which are not specified

    void printMessage() {
        logger.quiet(message.get())
    }
}

// Create the project extension
project.extensions.create('messages', MessageExtension)

// Create the greeting task
tasks.register("greeting", Greeting) {
    // Attach the greeting from the project extension
    // Note that the values of the project extension have not been configured yet
    greeting = messages.greeting
}

messages {