@Nullable
  public static List<Location> allLineLocations(ReferenceType cls) {
    try {
      return cls.allLineLocations();
    }
    catch (AbsentInformationException ignored) {
      return null;
    }
    catch (ObjectCollectedException ignored) {
      return Collections.emptyList();
    }
  }
@Nullable
  public static List<Location> allLineLocations(ReferenceType cls)