private final Consumer<List<U>> setter;
    private final Function<U, T> mapper;
    private final Function<T, U> revMapper;

    WrapperList(List<U> list, Function<U, T> mapper, Function<T, U> revMapper) {
        this(() -> list, null, mapper, revMapper);
    }

    WrapperList(Supplier<List<U>> getter, Consumer<List<U>> setter, Function<U, T> mapper, Function<T, U> revMapper) {
        this.getter = getter;

						Map: m,
					},
				},
			},
		},
		OnNoMatch: nil,
	}
	return Mapper{Matcher: match, Map: m}
}

func NewDestinationIP() Mapper {
	return newMapper(DestinationIP)
}

func NewSourceIP() Mapper {
	return newMapper(SourceIP)
}

func NewDestinationPort() Mapper {
	return newMapper(DestinationPort)
}

type ProtocolMatch struct {
	TCP, HTTP *matcher.Matcher_OnMatch
}

     */
    T completeAndGet();

    /**
     * Maps the result of the invocation via a mapper.
     *
     * @param mapper An inexpensive function on the result.
     * @throws NullPointerException if the mapper maps to {@code null}.
     */
    default <U> Deferrable<U> map(Function<? super T, U> mapper) {
        return new Deferrable<U>() {
            @Override
            public Optional<U> getCompleted() {

	mapper.RegisterKindFor(gvr("apps", "v1", "deployments"), "", gvk("apps", "v1", "Deployment"))
	mapper.RegisterKindFor(gvr("apps", "v1beta1", "deployments"), "", gvk("apps", "v1beta1", "Deployment"))
	mapper.RegisterKindFor(gvr("apps", "v1alpha1", "deployments"), "", gvk("apps", "v1alpha1", "Deployment"))

	mapper.RegisterKindFor(gvr("extensions", "v1beta1", "deployments"), "scale", gvk("extensions", "v1beta1", "Scale"))

	mapper := NewDefaultRESTMapper([]schema.GroupVersion{expectedGroupVersion1, expectedGroupVersion2})
	mapper.Add(expectedGroupVersion1.WithKind("InternalObject"), RESTScopeNamespace)
	mapper.Add(expectedGroupVersion2.WithKind("OtherObject"), RESTScopeNamespace)

	// pick default matching object kind based on search order
	mapping, err := mapper.RESTMapping(otherObjectGK)
	if err != nil {

public class MappedList<U, V> extends AbstractList<U> {
    private final List<V> list;
    private final Function<V, U> mapper;

    public MappedList(List<V> list, Function<V, U> mapper) {
        this.list = list;
        this.mapper = mapper;
    }

    @Override
    public U get(int index) {
        return mapper.apply(list.get(index));
    }

    @Override
    public int size() {
        return list.size();
    }

    def "does not pass events to trackers for disabled mapper"() {
        def mapper = Mock(BuildOperationMapper)
        def tracker = Mock(BuildOperationTracker)

        given:
        mapper.isEnabled(subscriptions) >> false
        mapper.trackers >> [tracker]
        mapper.detailsType >> Long.class

        def generator = new ClientBuildEventGenerator(consumer, subscriptions, [mapper], fallback)

        when:

            for (TestFailureMapper mapper : mappers) {
                if (mapper.supports(currentThrowable.getClass())) {
                    try {
                        return mapper.map(currentThrowable, this);
                    } catch (Exception ex) {
                        LOGGER.error("Failed to map supported failure '{}' with mapper '{}': {}", currentThrowable, mapper, ex.getMessage());
                    }

    @Test
    public void testRenameWithCapture() {
        RegExpNameMapper mapper = new RegExpNameMapper("(.+).java", "$1Test.java");
        assertEquals("SourceTest.java", mapper.transform("Source.java"));
        assertEquals("SecondTest.java", mapper.transform("Second.java"));
    }

    @Test
    public void testRenameNoMatch() {
        RegExpNameMapper mapper = new RegExpNameMapper("(.+).java", "$1Test.java");

                        val newCaptor = configureLambdaHandler.produceValueCaptor(param.type)
                        check(captor == null) { "multiple lambda argument captors are not supported" }
                        captor = newCaptor
                        put(param, newCaptor.lambda)
                    }
                    paramName != null && paramName in namedArguments -> {