List<ModelParser> parsers = container.lookupList(ModelParser.class);
            assertNotNull(parsers);
            assertEquals(1, parsers.size());
            Map<String, ModelParser> parsersMap = container.lookupMap(ModelParser.class);
            assertNotNull(parsersMap);
            assertEquals(1, parsersMap.size());
        }

        @Test
        void testGuice() throws Exception {

            }
        }

        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(

    }

    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();
    }

        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;

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

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

    @Override

            }

            @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();
            }
        };
    }

        holder.addCommandRegistry(builtins);

        // gather commands
        Map<String, ShellCommandRegistryFactory> factories =
                context.lookup.lookupMap(ShellCommandRegistryFactory.class);
        for (Map.Entry<String, ShellCommandRegistryFactory> entry : factories.entrySet()) {
            holder.addCommandRegistry(entry.getValue().createShellCommandRegistry(context));
        }

        }

        @Override
        public Collection<Lifecycle> provides() {
            try {
                Map<String, org.apache.maven.lifecycle.Lifecycle> all =
                        container.lookupMap(org.apache.maven.lifecycle.Lifecycle.class);
                return all.keySet().stream()
                        .filter(id -> !Lifecycle.CLEAN.equals(id)
                                && !Lifecycle.DEFAULT.equals(id)