*/
    @Nonnull
    Lookup getLookup();

    /**
     * The TCCL, if implementation requires it.
     */
    @Nonnull
    Optional<ClassLoader> currentThreadClassLoader();

    /**
     * Performs a clean shutdown of backing container.
     */
    @Override
    void close() throws Exception;

    }

    @Override
    public Lookup getLookup() {
        return lookup;
    }

    @Override
    public Optional<ClassLoader> currentThreadClassLoader() {
        return Optional.of(plexusContainer.getContainerRealm());
    }

    @Override
    public void close() {
        try {
            plexusContainer.dispose();
        } finally {

                if (context.containerCapsule != null
                        && context.containerCapsule.currentThreadClassLoader().isPresent()) {
                    Thread.currentThread()
                            .setContextClassLoader(context.containerCapsule
                                    .currentThreadClassLoader()
                                    .get());
                }
                return doInvoke(context);