if (!oldClass.isPresent() || !newClass.isPresent()) {
            // breaking change would be reported
            return null
        }

        return checkSuperClassChanges(member, oldClass.get(), newClass.get())
    }

    protected abstract boolean changed(JApiCompatibility member)

    protected abstract Violation checkSuperClassChanges(JApiClass apiClass, CtClass oldClass, CtClass newClass)

        this.acceptedApiChanges = acceptedApiChanges ? AcceptedApiChanges.fromAcceptedChangesMap(acceptedApiChanges) : [:]

        // Tests will not supply these
        this.apiChangesJsonFile = params.get("apiChangesJsonFile") ? new File(params.get("apiChangesJsonFile") as String) : null

        repository.find('class') == value
        repository.get('class') == value
    }

    def findReturnsNullForUnknownClass() {
        expect:
        repository.find('unknown') == null
    }

    def getFailsForUnknownClass() {
        given:
        repository.put('unkown', new TestDomainObject('unknown'))

        when:
        repository.get('unknown')

        then:

    @TaskAction
    def transform() {
        logging.captureStandardOutput(LogLevel.INFO)
        logging.captureStandardError(LogLevel.INFO)

        def destDir = destinationDirectory.get().asFile
        fs.delete {
            delete(destDir, temporaryDir)
        }

        def xslClasspath = classpath.plus(objects.fileCollection().from(ClasspathUtil.getClasspathForClass(XslTransformer)))

    @TaskAction
    def transform() {
        XIncludeAwareXmlProvider provider = new XIncludeAwareXmlProvider()
        provider.parse(sourceFile.get().asFile)
        transformImpl(provider.document)
        provider.write(destFile.get().asFile)
    }

    private def transformImpl(Document doc) {
        use(BuildableDOMCategory) {
            addVersionInfo(doc)
            transformApiLinks(doc)

        provider.parse(sourceFile.get().asFile)
        transformDocument(provider.document)
        provider.write(destFile.get().asFile)
    }

    private def transformDocument(Document mainDocbookTemplate) {
        ClassMetaDataRepository<ClassMetaData> classRepository = new SimpleClassMetaDataRepository<ClassMetaData>()
        classRepository.load(classMetaDataFile.get().asFile)

            def projectRootDirPath = projectRootDir.asFile.path

            richReport.get().tap {
                addRule(IncubatingInternalInterfaceAddedRule, [
                    acceptedApiChanges: acceptedChangesMap,
                    publicApiPatterns: includedClasses.get(),
                    apiChangesJsonFile: apiChangesJsonFilePath,
                    projectRootDir: projectRootDirPath

            return null
        }

        JApiMethod method = (JApiMethod) member

        def metadata = KotlinMetadataQueries.INSTANCE

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

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

    @InputArtifact
    abstract Provider<FileSystemLocation> getArtifact()

    @Override
    void transform(TransformOutputs outputs) {
        File baselineJarsDirectory = artifact.get().asFile
        if (baselineJarsDirectory.name == 'gradle-jars') {
            baselineJarsDirectory.listFiles().each {
                outputs.file(it)
            }
        }
    }

            inspectParametersNullabilityOf(ctor.oldConstructor.get(), ctor.newConstructor.get())

        } else if (member instanceof JApiMethod) {

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

            inspectParametersNullabilityOf(oldMethod, newMethod)