docs: private long collectAllKids(ArrayList<DisplayInstance> result, ServerInstanceLogRecordList list) {
          long timestamp = -1;
  
          RepositoryLogRecord first = list.iterator().next();
          if (first != null) {
              timestamp = first.getMillis();
          }
  
          for (Entry<String, ServerInstanceLogRecordList> kid : list.getChildren().entrySet()) {
              ArrayList<DisplayInstance> kidResult = new ArrayList<DisplayInstance>();
              long curTimestamp = collectAllKids(kidResult, kid.getValue());
              // Add this kid only if there's a record among its descendants
              if (curTimestamp > 0) {
                  result.add(new DisplayInstance(kid.getKey(), Long.toString(list.getStartTime().getTime()), curTimestamp, kidResult));
                  if (timestamp < curTimestamp) {
                      timestamp = curTimestamp;
                  }
              }
          }
  
          return timestamp;
      }