private Label[] getCaseLabels() {
      Map<T, Label> labelsByValue = new HashMap<>();
      Label[] labels = new Label[myReportingPlaces.size()];
      for (int i = 0; i < myReportingPlaces.size(); i++) {
        labels[i] = getOrCreateLabel(labelsByValue, getSwitchedValue(myReportingPlaces.get(i)));
      }
      return labelsByValue.size() == 1 ? null : labels;
    }
private Label[] getCaseLabels()