@Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((clickTrackingSetting == null) ? 0 : clickTrackingSetting.hashCode()); result = prime * result + ((googleAnalyticsSetting == null) ? 0 : googleAnalyticsSetting.hashCode()); result = prime * result + ((openTrackingSetting == null) ? 0 : openTrackingSetting.hashCode()); result = prime * result + ((subscriptionTrackingSetting == null) ? 0 : subscriptionTrackingSetting.hashCode()); return result; }