*
     * @return the version. Internal property may be null.
     * @since 5.1
     */
    @Internal("Represented as part of archiveFile")
    public Property<String> getArchiveVersion() {
        return archiveVersion;
    }

    /**
     * Returns the extension part of the archive name.
     *
     * @since 5.1
     */
    @Internal("Represented as part of archiveFile")