Map<AccessorKey, ReplacedAccessor> oldAccessorsOfUpgradedProperties = (Map<AccessorKey, ReplacedAccessor>) context.getUserData().get(OLD_ACCESSORS_OF_UPGRADED_PROPERTIES);

        // Find accessors that were not removed but should be
        Map<AccessorKey, ReplacedAccessor> keptAccessors = new HashMap<>(oldAccessorsOfUpgradedProperties);

    }

    private static Stream<Map.Entry<AccessorKey, ReplacedAccessor>> mapOldAccessorsOfUpgradedProperty(UpgradedProperty upgradedProperty) {
        return upgradedProperty.getReplacedAccessors().stream()
            .map(replacedAccessor -> {
                AccessorKey key = AccessorKey.ofReplacedAccessor(upgradedProperty.getContainingType(), replacedAccessor);
                return new AbstractMap.SimpleEntry<>(key, replacedAccessor);

        }

        public static AccessorKey ofReplacedAccessor(String containingType, ReplacedAccessor replacedAccessor) {
            return new AccessorKey(containingType, replacedAccessor.getName(), replacedAccessor.getDescriptor());
        }

        public static AccessorKey ofNewMethod(JApiMethod jApiMethod) {
            String name = jApiMethod.getName();

    }

    private static boolean isOldSetterOfUpgradedProperty(JApiMethod jApiMethod, Map<AccessorKey, ReplacedAccessor> upgradedMethods) {
        return isOldMethod(jApiMethod, upgradedMethods, SETTER_REGEX);
    }

    private static boolean isOldGetterOfUpgradedProperty(JApiMethod jApiMethod, Map<AccessorKey, ReplacedAccessor> upgradedMethods) {
        return isOldMethod(jApiMethod, upgradedMethods, GETTER_REGEX);
    }