code: public String decryptPassword(String encrypted) {
      Preconditions.checkArgument(this.encryptors.size() > 0,
          "A master password needs to be provided for decrypting passwords.");
  
      for (TextEncryptor encryptor : encryptors) {
        try {
          return encryptor.decrypt(encrypted);
        } catch (Exception e) {
          LOG.warn("Failed attempt to decrypt secret {}", encrypted, e);
        }
      }
      LOG.error("All {} decrypt attempt(s) failed.", encryptors.size());
      throw new RuntimeException("Failed to decrypt password ENC(" + encrypted + ")");
    }
docs: Decrypt an encrypted password. A master password file must have been provided in the constructor.
  @param encrypted An encrypted password.
  @return The decrypted password.