requireNonNull(invoker, "invoker");
        requireNonNull(context, "context");
        requireNonNull(coreExtensionSelector, "coreExtensionSelector");
        return new PlexusContainerCapsule(
                context,
                Thread.currentThread().getContextClassLoader(),
                container(invoker, context, coreExtensionSelector));
    }

    protected DefaultPlexusContainer container(