@InputDirectory
    abstract DirectoryProperty getJsonFileDirectory()

    @TaskAction
    void clean() {
        def jsonFileManager = new AcceptedApiChangesJsonFileManager()
        jsonFileDirectory.asFile.get().listFiles()
            ?.findAll { it.name.endsWith(".json") }
            ?.each { jsonFileManager.emptyAcceptedApiChanges(it) }
    }

        println "files 11: " + configurations.compile.resolvedConfiguration.getFiles { true }.collect { it.name }
        println "files 12: " + configurations.compile.resolvedConfiguration.lenientConfiguration.getFiles { true }.collect { it.name }
    }
}
"""

        when:

        expect:
        ConcurrentTestUtil.poll(60, 0, 10) {
            configurationCacheRun 'help'
            run '--stop'
            assert !outdated.isDirectory()
        }

        and:
        cacheDir.listFiles().length == 3 // gc file + cache properties + 'help' state
    }

    private TestFile createCacheEntryDir(String entry) {
        TestFile dir = cacheDir.createDir(entry)
        dir.createFile("state.bin")

    }

    @Override
    public Compiler<ScalaJavaJointCompileSpec> newCompiler(ScalaJavaJointCompileSpec spec) {
        Set<File> scalaClasspathFiles = scalaClasspath.getFiles();
        Set<File> zincClasspathFiles = zincClasspath.getFiles();

        HashedClasspath hashedScalaClasspath = new HashedClasspath(DefaultClassPath.of(scalaClasspathFiles), classpathHasher);

    }

    @Override
    public FileCollection getFiles() {
        return files;
    }

    private class ArtifactsFileCollection implements MinimalFileSet {
        @Override
        public String getDisplayName() {
            return "artifacts for Maven publication '" + publicationName + "'";
        }

        @Override
        public Set<File> getFiles() {
            Set<File> files = new LinkedHashSet<File>();

    }

    private Set<String> getChangedFileNames(boolean qualified = false) {
        // Get all of the files that do not have a zero last modified timestamp
        return getFiles(qualified) { it.lastModified() > 0 }
    }

    private Set<String> getFiles(boolean qualified = false, Predicate<File> criteria) {
        // Get all of the files that do not have a zero last modified timestamp
        def changed = new HashSet()

    }

    @Override
    public String toString() {
        return displayName.getDisplayName();
    }

    @Override
    public FileCollection getFiles() {
        return files;
    }

    @Override
    public TaskDependency getBuildDependencies() {
        return builtBy;
    }

    private class ArtifactsFileCollection implements MinimalFileSet {

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

        task.includes(fileCollectionFactory.create(new MinimalFileSet() {
            @Override
            public Set<File> getFiles() {
                PlatformToolProvider platformToolProvider = ((NativeToolChainInternal) binary.getToolChain()).select((NativePlatformInternal) binary.getTargetPlatform());

            return new File[0];
        }
        final File libDir = new File(libPath);
        if (!libDir.exists()) {
            return new File[0];
        }
        return libDir.listFiles((file, name) -> name.startsWith(namePrefix));
    }

    public static File[] getPluginJarFiles(final String namePrefix) {
        return getPluginJarFiles((file, name) -> name.startsWith(namePrefix));
    }