}
        JApiMethod jApiMethod = (JApiMethod) jApiCompatibility;
        Map<AccessorKey, ReplacedAccessor> oldMethods = context.getUserData(OLD_ACCESSORS_OF_UPGRADED_PROPERTIES);
        AccessorKey key = AccessorKey.ofOldMethod(jApiMethod);
        return oldMethods.containsKey(key) ? Optional.of(key) : Optional.empty();
    }

        def metadata = KotlinMetadataQueries.INSTANCE

        def oldMethod = method.oldMethod.get()
        def newMethod = method.newMethod.get()

        def oldIsOperator = metadata.isKotlinOperatorFunction(oldMethod)
        def newIsOperator = metadata.isKotlinOperatorFunction(newMethod)

        def oldIsInfix = metadata.isKotlinInfixFunction(oldMethod)
        def newIsInfix = metadata.isKotlinInfixFunction(newMethod)

            JApiMethod method = (JApiMethod) member
            CtMethod oldMethod = method.oldMethod.get()
            CtMethod newMethod = method.newMethod.get()

            inspectParametersNullabilityOf(oldMethod, newMethod)

            def oldNullability = hasNullableAnnotation(oldMethod)
            def newNullability = hasNullableAnnotation(newMethod)

        Set<CtMethod> oldMethods = collectAllPublicApiMethods(oldClass.superclass)
        Set<CtMethod> newMethods = collectAllPublicApiMethods(newClass.superclass)

        oldMethods.removeAll(newMethods)

        if (oldMethods.isEmpty()) {
            return null
        }

        List<String> changes = filterChangesToReport(oldClass, oldMethods)
        if (changes.isEmpty()) {
            return null

            String containingType = jApiMethod.getjApiClass().getFullyQualifiedName();
            return new AccessorKey(containingType, name, descriptor);
        }

        public static AccessorKey ofOldMethod(JApiMethod jApiMethod) {
            String name = jApiMethod.getName();
            String descriptor = jApiMethod.getOldMethod().get().getSignature();