this.hashToOriginalFile = Lazy.locking().of(() -> {
                Set<File> originalClasspath = getOriginalClasspath().getFiles();
                Map<String, File> originalFiles = Maps.newHashMapWithExpectedSize(originalClasspath.size());
                originalClasspath.forEach(file -> {
                    String fileHash = getArtifactHash(file);
                    if (fileHash != null) {

    @Rule TestNameTestDirectoryProvider tmpDir = new TestNameTestDirectoryProvider(getClass())

    /**
     * Returns the classpath for the given classes.
     */
    List<File> originalClassPath(Class<?>... classes) {
        return classes.collect { ClasspathUtil.getClasspathForClass(it) }
    }


    /**

            action.execute(null)
        } finally {
            loader?.close()
        }
    }

    private List<File> getToolingApiClassPath() {
        originalClassPath(BuildAction)
    }

    private List<URL> classpathFor(Class<?> cl) {
        List<URI> classpath = []
        factory.getClassPathFor(cl, classpath)
        return classpath.collect { it.toURL() }
    }

    instrument{{"Instrument and upgrade\n(Artifact transform)"}}
    typeHierarchy(Classpath with all super types)
    artifactOutput("1. Artifact metadata: hash, name\n2. Direct Super types\n3. Class dependencies")
    originalClasspath(Original classpath)
    originalClasspathInput("Original classpath as input:\nto recalculate Resolve supertypes\nstep on classpath change")