}

    private static Map<AccessorKey, UpgradedProperty> currentAccessorsOfUpgradedProperties(List<UpgradedProperty> upgradedProperties) {
        return upgradedProperties.stream().collect(Collectors.toMap(AccessorKey::ofUpgradedProperty, Function.identity()));
    }

            this.descriptor = descriptor;
        }

        public static AccessorKey of(String containingType, String methodName, String descriptor) {
            return new AccessorKey(containingType, methodName, descriptor);
        }

        public static AccessorKey ofUpgradedProperty(UpgradedProperty upgradedProperty) {

    }

    public static Optional<AccessorKey> maybeGetKeyOfOldAccessorOfUpgradedProperty(JApiCompatibility jApiCompatibility, ViolationCheckContext context) {
        if (!(jApiCompatibility instanceof JApiMethod) || ((JApiMethod) jApiCompatibility).getOldMethod().isEmpty()) {
            return Optional.empty();
        }
        JApiMethod jApiMethod = (JApiMethod) jApiCompatibility;

    @SuppressWarnings("unchecked")
    public void execute(ViolationCheckContextWithViolations context) {
        Set<AccessorKey> seenUpgradedAccessorsChanges = (Set<AccessorKey>) context.getUserData().get(SEEN_OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES);
        Map<AccessorKey, ReplacedAccessor> oldAccessorsOfUpgradedProperties = (Map<AccessorKey, ReplacedAccessor>) context.getUserData().get(OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES);

    Violation acceptOrReject(JApiCompatibility member, List<String> changes, Violation rejection) {
        Set<ApiChange> seenApiChanges = (Set<ApiChange>) context.userData["seenApiChanges"]
        Set<AccessorKey> seenOldAccessorsOfUpgradedProperties = (Set<AccessorKey>) context.userData[SEEN_OLD_REMOVED_ACCESSORS_OF_UPGRADED_PROPERTIES]