public static ObjectNode objectNodeFromURL(
      final URL jsonSource, final boolean allowComments, final String... excludeFields) {
    try {
      return objectNodeFromParser(
          JSON_FACTORY.createParser(jsonSource).enable(Feature.AUTO_CLOSE_SOURCE),
          allowComments,
          excludeFields);
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
Object node from string object node.

@param jsonSource the json data
@param allowComments true to allow comments
@param excludeFields names of the fields to not read
@return the object node
config/src/main/java/org/hyperledger/besu/config/JsonUtil.java