* @param artifactType the type of the artifact
     * @param filename the filename to parse
     * @return an artifact instance
     */
    protected Artifact getArtifactFromFileName(final ArtifactType artifactType, final String filename) {
        return getArtifactFromFileName(artifactType, filename, null);
    }

    /**
     * Creates an artifact instance from a filename with a specified URL.
     *