public String getKey() {
            return getId();
        }

        public boolean isUniqueVersion() {
            return true;
        }

        public boolean isBlacklisted() {
            return false;
        }

        public void setBlacklisted(boolean blackListed) {}

        public org.apache.maven.artifact.Artifact find(org.apache.maven.artifact.Artifact artifact) {

    }

    public Proxy getProxy() {
        return proxy;
    }

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

    public boolean isBlacklisted() {
        return false;
    }

    public void setBlacklisted(boolean blackListed) {
        // no op
    }

    public boolean isUniqueVersion() {
        return true;
    }