code: @ShellMethod(key = "generate-key", value = "Generate signing/encryption crypto keys for CAS settings")
      public void generateKey(@ShellOption(value = {"key-size"},
          defaultValue = "256", help = "Key size") final int keySize) {
          LOGGER.info(EncodingUtils.generateJsonWebKey(keySize));
      }
docs: Generate key.
  
  @param keySize the key size