code: private void loadUsers() throws IOException {
          file_store = new Properties();
  
          // Load our userbase from disk
          try {
              File user_file = new File(file_path);
              if (!user_file.exists()) {
                  user_file.getParentFile().mkdirs();
                  OutputStream out = new FileOutputStream(user_file);
                  IOUtils.copy(
                          getClass().getResourceAsStream("/" + DEFAULT_FILE_NAME),
                          out);
                  out.close();
              }
  
              file_store.load(new FileInputStream(file_path));
          } catch (Exception e) {
              throw new IOException(e);
          }
      }
docs: Load users from the file
  
  @throws IOException if fail to load from file