static @NotNull Collection<String> getBlackList() {
    Set<String> blackList = ourBlackList;
    if (blackList == null) {
      synchronized (BLACK_LIST_LOCK) {
        blackList = ourBlackList;
        if (blackList == null) {
          ourBlackList = blackList = loadBlackList();
        }
      }
    }
    return blackList;
  }
static @NotNull Collection<String> getBlackList()