@Override
    protected void lookup(C context) throws Exception {
        context.eventSpyDispatcher = context.lookup.lookup(EventSpyDispatcher.class);
        context.mavenExecutionRequestPopulator = context.lookup.lookup(MavenExecutionRequestPopulator.class);
        context.toolchainsBuilder = context.lookup.lookup(ToolchainsBuilder.class);
        context.modelProcessor = context.lookup.lookup(ModelProcessor.class);

     */
    default MessageBuilderFactory messageBuilderFactory() {
        return parserRequest().messageBuilderFactory();
    }

    /**
     * Shorthand for {@link Lookup}.
     */
    default Lookup lookup() {
        return parserRequest().lookup();
    }

    /**
     * Returns the current working directory for the Maven execution.
     * This is typically the directory from which Maven was invoked.
     *

	// Indicates if sub-sys supports multiple targets.
	MultipleTargets bool `json:"multipleTargets"`
}

// HelpKVS - implement order of keys help messages.
type HelpKVS []HelpKV

// Lookup - lookup a key from help kvs.
func (hkvs HelpKVS) Lookup(key string) (HelpKV, bool) {
	for _, hkv := range hkvs {
		if hkv.Key == key {
			return hkv, true
		}
	}
	return HelpKV{}, false
}

// DefaultComment used across all sub-systems.

     */
    @Named
    @Singleton
    @SuppressWarnings("unused")
    static class ReactorReaderSpy implements EventSpy {

        private final Lookup lookup;

        @Inject
        ReactorReaderSpy(Lookup lookup) {
            this.lookup = lookup;
        }

        @Override
        public void init(Context context) throws Exception {}

        @Override

            }
            final Object bean = instantiateObject(implType);
            if (null == value) {
                processConfiguration(lookup, bean, loader, configuration, evaluator, listener);
            } else {
                new CompositeBeanHelper(lookup, loader, evaluator, listener).setDefault(bean, value, configuration);
            }
            return bean;
        } catch (final ComponentConfigurationException e) {

import org.apache.maven.api.annotations.Nonnull;

public interface ExtensibleEnumRegistry<T extends ExtensibleEnum> extends Service {
    @Nonnull
    Optional<T> lookup(@Nonnull String id);

    @Nonnull
    default T require(@Nonnull String id) {
        return lookup(id).orElseThrow(() -> new IllegalArgumentException("Unknown extensible enum value '" + id + "'"));
    }

        public Optional<Lifecycle> lookup(String id) {
            return Optional.empty();
        }

        @Override
        public List<String> computePhases(Lifecycle lifecycle) {
            return List.of();
        }
    };

    private static final PackagingRegistry emptyPackagingRegistry = new PackagingRegistry() {
        @Override
        public Optional<Packaging> lookup(String id) {

   */
  @Throws(UnknownHostException::class)
  fun lookup(hostname: String): List<InetAddress>

  companion object {
    /**
     * A DNS that uses [InetAddress.getAllByName] to ask the underlying operating system to
     * lookup IP addresses. Most custom [Dns] implementations should delegate to this instance.
     */
    @JvmField
    val SYSTEM: Dns = DnsSystem()

    /**
     * Lookup addresses for the given <tt>hostname</tt>.
     * 
     * @param hostname
     * @param possibleNTDomainOrWorkgroup
     * @return found addresses
     * @throws UnknownHostException
     */
    Address[] getAllByName ( String hostname, boolean possibleNTDomainOrWorkgroup ) throws UnknownHostException;


    /**

import org.apache.maven.api.cli.InvokerException;
import org.apache.maven.api.services.Lookup;

/**
 * Container capsule.
 */
public interface ContainerCapsule extends AutoCloseable {
    /**
     * The {@link Lookup} service backed by container in this capsule.
     */
    @Nonnull
    Lookup getLookup();

    /**
     * Performs a clean shutdown of backing container.
     */
    @Override