public void dumpOriginalLineNumbers(int[] lineMapping) {
    if (lineMapping.length > 0) {
      myLineMapping = new HashMap<>();
      for (int i = 0; i < lineMapping.length; i += 2) {
        int key = lineMapping[i + 1];
        Set<Integer> existing = myLineMapping.computeIfAbsent(key, k -> new TreeSet<>());
        existing.add(lineMapping[i]);
      }
    }
  }
public void dumpOriginalLineNumbers(int[] lineMapping)