return Optional.empty();
    }

    @Override
    public <T> List<T> lookupList(Class<T> type) {
        return List.of();
    }

    @Override
    public <T> Map<String, T> lookupMap(Class<T> type) {
        return Map.of();
    }

        } catch (ComponentLookupException e) {
            throw new LookupException(e);
        }
    }

    @Override
    public <T> Map<String, T> lookupMap(Class<T> type) {
        try {
            return container.lookupMap(type);
        } catch (ComponentLookupException e) {
            throw new LookupException(e);
        }
    }

     * @param <T> The component type.
     * @throws LookupException if there is some provisioning related issue.
     */
    @Nonnull
    <T> Map<String, T> lookupMap(Class<T> type);

            }
        }

        private List<Completer> mvnencCompleter(String name) {
            return List.of(new ArgumentCompleter(new StringsCompleter(
                    shellContext.lookup.lookupMap(Goal.class).keySet())));
        }

        private void mvnup(CommandInput input) {
            try {
                shellUpgradeInvoker.invoke(upgradeParser.parseInvocation(

        return lookupOptional(type);
    }

    @Override
    public <T> List<T> lookupList(Class<T> type) {
        return List.of();
    }

    @Override
    public <T> Map<String, T> lookupMap(Class<T> type) {
        return Map.of();
    }

    public static Builder builder() {
        return new Builder();
    }

    public static class Builder {

        return container.lookupList(role);
    }

    @Deprecated
    public Map<String, Object> lookupMap(String role) throws ComponentLookupException {
        return container.lookupMap(role);
    }

    public Session getSession() {
        return session;
    }

    public void setSession(Session session) {
        this.session = session;

            }

            @Override
            public <T> List<T> lookupList(Class<T> type) {
                return List.of();
            }

            @Override
            public <T> Map<String, T> lookupMap(Class<T> type) {
                return Map.of();
            }
        };
    }

    }

    private org.apache.maven.impl.DefaultToolchainManager getDelegate() {
        Map<String, ToolchainFactory> v3Factories = lookup.lookupMap(ToolchainFactory.class);
        Map<String, org.apache.maven.api.services.ToolchainFactory> v4Factories =
                lookup.lookupMap(org.apache.maven.api.services.ToolchainFactory.class);
        Map<String, org.apache.maven.api.services.ToolchainFactory> allFactories = new HashMap<>();

        factories.put("basic", toolchainFactoryBasicType);
        factories.put("rare", toolchainFactoryRareType);

        when(lookup.lookupMap(ToolchainFactory.class)).thenReturn(factories);
        when(lookup.lookupMap(org.apache.maven.toolchain.ToolchainFactory.class))
                .thenReturn(Map.of());

        toolchainManager = new ToolchainManagerFactory(lookup, logger).v3Manager();
    }

        ClassLoader oldClassLoader = Thread.currentThread().getContextClassLoader();
        try {
            Thread.currentThread().setContextClassLoader(pluginDescriptor.getClassRealm());

            return container.lookupMap(role);
        } finally {
            Thread.currentThread().setContextClassLoader(oldClassLoader);
        }
    }

    @Override