*/
    public static final String OS_NAME = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);

    /**
     * The OA architecture.
     */
    public static final String OS_ARCH = System.getProperty("os.arch").toLowerCase(Locale.ENGLISH);

    /**
     * The OS version.
     */
    public static final String OS_VERSION = System.getProperty("os.version").toLowerCase(Locale.ENGLISH);

    /**

                .value("value" + Long.toHexString(entropy.nextLong()))
                .build();
        ActivationOS ao = ActivationOS.newBuilder()
                .arch("arch" + Long.toHexString(entropy.nextLong()))
                .family("family" + Long.toHexString(entropy.nextLong()))
                .name("name" + Long.toHexString(entropy.nextLong()))

                        .arch(settingsOs.getArch())
                        .family(settingsOs.getFamily())
                        .name(settingsOs.getName())
                        .version(settingsOs.getVersion())
                        .location("arch", toLocation(settingsOs.getLocation("arch")))
                        .location("family", toLocation(settingsOs.getLocation("family")))

        boolean active = ensureAtLeastOneNonNull(os);

        String actualOsName = context.getSystemProperties().get("os.name").toLowerCase(Locale.ENGLISH);
        String actualOsArch = context.getSystemProperties().get("os.arch").toLowerCase(Locale.ENGLISH);
        String actualOsVersion = context.getSystemProperties().get("os.version").toLowerCase(Locale.ENGLISH);

        if (active && os.getFamily() != null) {

                        .arch(settingsOs.getArch())
                        .family(settingsOs.getFamily())
                        .name(settingsOs.getName())
                        .version(settingsOs.getVersion())
                        .location("arch", toLocation(settingsOs.getLocation("arch")))
                        .location("family", toLocation(settingsOs.getLocation("family")))

            return result;
        }
    }

    private boolean determineArchMatch(String arch) {
        String test = arch;
        boolean reverse = false;

        if (test.startsWith("!")) {
            reverse = true;
            test = test.substring(1);
        }

        boolean result = Os.OS_ARCH.equals(test);

        if (reverse) {
            return !result;
        } else {

        }

        @Override
        protected ActivationOS.Builder transformActivationOS_Arch(
                Supplier<? extends ActivationOS.Builder> creator, ActivationOS.Builder builder, ActivationOS target) {
            stk.push(nextFrame("arch"));
            try {
                return super.transformActivationOS_Arch(creator, builder, target);
            } finally {
                stk.pop();
            }