@Nullable
    static AnnotatedBeanFactory<?> find(@Nullable BeanFactoryId beanFactoryId) {
        if (beanFactoryId == null) {
            return null;
        }
        final AnnotatedBeanFactories annotatedBeanFactories = factories.get(beanFactoryId.type);
        final AnnotatedBeanFactory<?> factory = annotatedBeanFactories.get(beanFactoryId.pathParams);
        return factory != null && factory != unsupportedBeanFactory ? factory : null;
    }
Returns a factory of the specified {@link BeanFactoryId}.
core/src/main/java/com/linecorp/armeria/internal/server/annotation/AnnotatedBeanFactoryRegistry.java