@Override
    public OccurenceInfo goPreviousOccurence() {
      Pair<Integer, Supplier<OccurenceInfo>> navigator = getOccurenceNavigator(false);
      if (navigator != null) {
        myBuildsList.setSelectedIndex(navigator.first);
        return navigator.second.get();
      }
      return null;
    }
@Override
    public OccurenceInfo goPreviousOccurence()