@Override
  public int getDuplicateMessageLimit() {
    return JsonUtil.getInt(bftConfigRoot, "duplicatemessagelimit", DEFAULT_DUPLICATE_MESSAGE_LIMIT);
  }
Instantiates a new Json bft config options.

@param bftConfigRoot the bft config root
config/src/main/java/org/hyperledger/besu/config/JsonBftConfigOptions.java