}

            validateOptionalProfiles(session, request.getProfileActivation());

            LifecycleStarter lifecycleStarter = lookup.lookupOptional(LifecycleStarter.class, request.getBuilderId())
                    .orElseGet(() -> lookup.lookup(LifecycleStarter.class));

            lifecycleStarter.execute(session);

            validateOptionalProjects(request, session);

     */
    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.

```

If you set an empty lookup bind password, the lookup bind will use the unauthenticated authentication mechanism, as described in [RFC 4513 Section 5.1.2](https://tools.ietf.org/html/rfc4513#section-5.1.2).

### User lookup

     */
    @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

	conn, err := l.LDAP.Connect()
	if err != nil {
		return nil, nil, err
	}
	defer conn.Close()

	// Bind to the lookup user account
	if err = l.LDAP.LookupBind(conn); err != nil {
		return nil, nil, err
	}

	// Lookup user DN
	lookupRes, err := l.LDAP.LookupUsername(conn, username)
	if err != nil {
		errRet := fmt.Errorf("Unable to find user DN: %w", err)
		return nil, nil, errRet

            }
            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) {

        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) {

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 + "'"));
    }

   */
  @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()