@Nullable
  private Change getChangeForAfterPath(@Nullable FilePath filePath) {
    Change change = getChangeForPath(filePath);
    if (change == null) return null;

    ContentRevision after = change.getAfterRevision();
    if (after != null && after.getFile().equals(filePath)) {
      return change;
    }
    return null;
  }
@Nullable
  private Change getChangeForAfterPath(@Nullable FilePath filePath)