PomHttpArtifact(HttpServer httpServer, String path, MavenFileModule backingModule) {
        super(httpServer, path)
        this.backingModule = backingModule
    }

    @Override
    TestFile getSha1File() {
        backingModule.getSha1File(file)
    }

    @Override
    TestFile getMd5File() {
        backingModule.getMd5File(file)
    }

    @Override
    protected TestFile getSha256File() {

        }

        @Override
        String getName() {
            return backingArtifact.name
        }

        @Override
        protected TestFile getSha1File() {
            return backingModule.getSha1File(file)
        }

        @Override
        protected TestFile getMd5File() {
            return backingModule.getMd5File(file)
        }

        @Override

        super(server, rootUrl)
        this.backingArtifact = backingArtifact
        this.backingModule = backingModule;
    }

    @Override
    TestFile getSha1File() {
        backingModule.getSha1File(file)
    }

    @Override
    TestFile getMd5File() {
        backingModule.getMd5File(file)
    }

    @Override
    protected TestFile getSha256File() {

    }

    protected abstract TestFile getSha1File();

    protected abstract TestFile getMd5File();

    protected abstract TestFile getSha256File()

    protected abstract TestFile getSha512File()

    abstract TestFile getFile();

    void verifyChecksums() {
        if (server.supportsHash(HttpServer.SupportedHash.SHA1)) {
            def sha1File = getSha1File()
            sha1File.assertIsFile()

    MetaDataArtifact(HttpServer httpServer, String path, MavenFileModule backingModule) {
        super(httpServer, path)
        this.backingModule = backingModule
    }

    @Override
    TestFile getSha1File() {
        backingModule.getSha1File(file)
    }

    @Override
    TestFile getMd5File() {
        backingModule.getMd5File(file)
    }

    @Override
    protected TestFile getSha256File() {

            Closure cl = onEveryFile.clone()
            cl.delegate = file
            cl.resolveStrategy = Closure.DELEGATE_FIRST
            cl(file)
        }
    }

    TestFile getSha1File(TestFile file) {
        getHashFile(file, Hashing.sha1())
    }

    TestFile sha1File(TestFile file) {
        hashFile(file, Hashing.sha1())
    }

    TestFile getSha256File(TestFile file) {