AppletManager.sendCardAPDU(CLA_SECURITY, INS_SET_USER, 0, 0, Convertor.byteArrayToIntArray(userId), 0);
AppletManager.sendCardAPDU(CLA_SECURITY, INS_SET_USER, 0, 0, Convertor.ByteArrayToIntArray(userId), 0);
    public static void setUser(byte[] userId) throws SecurityException, slbException {        AppletManager.sendCardAPDU(CLA_SECURITY, INS_SET_USER, 0, 0, Convertor.byteArrayToIntArray(userId), 0);    }