@Override
    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;
    }

    @Override
    public Proxy getProxy() {
        return proxy;
    }

    @Override
    public void setProxy(Proxy proxy) {
        this.proxy = proxy;
    }

    @Override
    public boolean isUniqueVersion() {
        return true;
    }

    @Override

    }

    String getRepositoryKey(ArtifactRepository repository) {
        StringBuilder buffer = new StringBuilder(256);

        Proxy proxy = repository.getProxy();
        if (proxy != null) {
            if (proxy.getUserName() != null) {
                int hash = (proxy.getUserName() + proxy.getPassword()).hashCode();
                buffer.append(hash).append('@');

    @Override
    public void setAuthentication(Authentication authentication) {
        this.authentication = authentication;
    }

    @Override
    public Proxy getProxy() {
        return proxy;
    }

    @Override
    public void setProxy(Proxy proxy) {
        this.proxy = proxy;
    }

    @Override
    public boolean isBlacklisted() {
        return false;
    }

    @Override

            builder.setReleasePolicy(toPolicy(repo.getReleases()));
            builder.setAuthentication(toAuthentication(repo.getAuthentication()));
            builder.setProxy(toProxy(repo.getProxy()));
            builder.setMirroredRepositories(toRepos(repo.getMirroredRepositories()));
            builder.setBlocked(repo.isBlocked());
            result = builder.build();
        }

        @Override
        public Authentication getAuthentication() {
            return null;
        }

        @Override
        public void setProxy(Proxy proxy) {}

        @Override
        public Proxy getProxy() {
            return null;
        }

        @Override
        public List<ArtifactRepository> getMirroredRepositories() {
            return Collections.emptyList();