code: public void setJsonCredentialsFile(String jsonCredentialsPath) {
      if (!Utility.isNullOrEmpty(jsonCredentialsPath)) {
        setJsonCredentialsFile(new File(jsonCredentialsPath));
      } else {
        setJsonCredentialsFile((File) null);
      }
    }
docs: Sets the JSON credentials path.
  
  @param jsonCredentialsPath
  the JSON credentials path.