WitnessRegisterMessage message = new WitnessRegisterMessage();
            // Convert int version to WitnessVersion enum
            WitnessVersion witnessVersion = (request.getVersion() >= 0x00020000) ? WitnessVersion.VERSION_2 : WitnessVersion.VERSION_1;
            message.setVersion(witnessVersion);
            message.setNetName(serverAddress.getHostName());
            message.setShareName(request.getShareName());

    SCALE_OUT_WITNESS,   // Scale-out file server witness
    DFS_WITNESS         // DFS namespace witness
}

public enum WitnessVersion {
    VERSION_1(0x00010001),  // Windows Server 2012
    VERSION_2(0x00020000);  // Windows Server 2012 R2+
    
    private final int version;
    
    WitnessVersion(int version) {
        this.version = version;
    }
    
    public int getValue() { return version; }
}