Merge \"Handle invalid empty args to createAutoBrightnessSpline\" into nyc-mr1-dev

    }

    private static Spline createAutoBrightnessSpline(int[] lux, int[] brightness) {

        if (lux == null || lux.length == 0 || brightness == null || brightness.length == 0) {

            Slog.e(TAG, "Could not create auto-brightness spline.");

            return null;

        }

        try {

            final int n = brightness.length;

            float[] x = new float[n];