majorVersion = Integer.parseInt(values[0]);
            minorVersion = Integer.parseInt(values[1]);
            productVersion = majorVersion + "." + minorVersion;
            System.setProperty("fess.version", version);
            System.setProperty("fess.product.version", productVersion);
        } catch (final Exception e) {
            throw new FessSystemException("Failed to parse project.properties.", e);
        }

		exit 1
		;;
	esac
}

assert_is_supported_os() {
	case "${KNAME}" in
	Linux | FreeBSD | OpenBSD | NetBSD | DragonFly | SunOS)
		return
		;;
	Darwin)
		osx_host_version=$(env sw_vers -productVersion)
		if ! check_minimum_version "${OSX_VERSION}" "${osx_host_version}"; then
			echo "OSX version '${osx_host_version}' is not supported. Minimum supported version: ${OSX_VERSION}"
			exit 1
		fi
		return
		;;
	*)

	var iosVer, buildVer string
	lines := bytes.Split(out, []byte("\n"))
	for _, line := range lines {
		key, val, ok := strings.Cut(string(line), ": ")
		if !ok {
			continue
		}
		switch key {
		case "ProductVersion":
			iosVer = val
		case "BuildVersion":
			buildVer = val
		}
	}
	if iosVer == "" || buildVer == "" {
		return "", errors.New("failed to parse ideviceinfo output")
	}