FilteringClassLoader.Spec filteringClassLoaderSpec = new FilteringClassLoader.Spec();
            for (String sharedPackage : sharedPackages) {
                filteringClassLoaderSpec.allowPackage(sharedPackage);
            }
            FilteringClassLoader filteringClassLoader = new FilteringClassLoader(getClass().getClassLoader(), filteringClassLoaderSpec);

    def encoder = new KryoBackedEncoder(outputStream)

    def "can serialize and deserialize a classloader structure"() {
        def classLoaderStructure = new HierarchicalClassLoaderStructure(filteringClassloaderSpec())
                .withChild(visitableUrlClassloaderSpec())

        when:
        serializer.write(encoder, classLoaderStructure)
        encoder.flush()

        and:

        decodedSpec.projectCacheDir.canonicalPath == spec.projectCacheDir.canonicalPath
        decodedSpec.internalServicesRequired
    }

    def filteringClassloaderSpec() {
        def classNames = [ 'allowed.Class1', 'allowed.Class2' ]
        def disallowedClassNames = [ 'disallowed.Class1', 'disallowed.Class2' ]