QScreen::name() returns an empty string on BlackBerry 10 / QNX for all screens

int main(int argc, char **argv)
{
    typedef QList<WindowPtr> WindowList;

    QGuiApplication app(argc, argv);

    QList<QScreen*> screenList = app.screens();
    qDebug() << screenList.size() << "screens";

    for (int i= 0; i < screenList.size(); ++i) {
        QScreen *screen =  screenList.at(i);
        qDebug() << "Attached screen name: " << screen->name();
    }
}