@Override
    public boolean hasData() {
        
        if (this.windowSize == null &&
                this.windowLocation == null &&
                this.horizontalDividerLocation == 0 &&
                this.verticalDividerLocation == 0 &&
                this.selectedEntryTab == 0 &&
                this.selectedExtrasTab == 0) {
            
            return false;
        }
        return true;
    }