}

    /**
     * Gets a map of environment variables.
     *
     * @return A map of environment variables.
     */
    protected Map<String, String> getEnvMap() {
        return System.getenv();
    }

    /**
     * Gets the version of the Fess application.
     *
     * @return The version string.
     */
    public String getVersion() {
        return version;
    }