.map(replacedAccessor -> {
                AccessorKey key = AccessorKey.ofReplacedAccessor(upgradedProperty.getContainingType(), replacedAccessor);
                return new AbstractMap.SimpleEntry<>(key, replacedAccessor);
            });
    }

    private static <T> Map<AccessorKey, T> diff(Map<AccessorKey, T> first, Map<AccessorKey, T> second) {
        return first.entrySet().stream()