));
        context.putUserData(OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES, diff(
            oldRemovedAccessorsOfUpgradedProperties(currentUpgradedProperties),
            oldRemovedAccessorsOfUpgradedProperties(baselineUpgradedProperties)
        ));
        context.putUserData(SEEN_OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES, new HashSet<>());
    }

    private static final Pattern BOOLEAN_GETTER_REGEX = Pattern.compile("is[A-Z].*");
    public static final String OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES = "oldRemovedAccessorsOfUpgradedProperties";
    public static final String SEEN_OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES = "seenOldRemovedAccessorsOfUpgradedProperties";