Obviously only the annotation based way is working. If you only implement t

Directory GoogleAnalyticsTracker
1

Obviously only the annotation based way is working.
If you only implement the given interface the created config is not really created.

Look for these Lines:

// these Config is not set to the variable “config”
TrackerConfiguration.create(logLevel, sendHits);

private static TrackerConfiguration createConfig(UI ui) {
    TrackerConfiguration config = null;

    HasElement routeLayout = findRouteLayout(ui);
    boolean productionMode = ui.getSession().getConfiguration().isProductionMode();

    EnableGoogleAnalytics annotation = routeLayout.getClass().getAnnotation(EnableGoogleAnalytics.class);

    if (annotation != null) {
        config = TrackerConfiguration.fromAnnotation(annotation, productionMode);
    }

    if (routeLayout instanceof TrackerConfigurator) {
        if (config == null) {
            // Use same defaults as in the annotation
            LogLevel logLevel = productionMode ? LogLevel.NONE : LogLevel.DEBUG;
            boolean sendHits = SendMode.PRODUCTION.shouldSend(productionMode);

			// these Config is not set to the variable "config"
            TrackerConfiguration.create(logLevel, sendHits);
        }

        ((TrackerConfigurator) routeLayout).configureTracker(config);
    }

    return config;
}

/Edit:
Just seen there is a fix commit “committed on 19 Jul”.
Do anybody know when there will be an fix release?