navigation_title mapped_pages Java https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/current/troubleshooting.html Troubleshoot {{es}} Java client [troubleshooting] Exceptions [_exceptions] MissingRequiredPropertyException in a response NoSuchMethodError RequestOptions$Builder.removeHeader when creating a client Apache http-client I/O reactor errors Miscellaneous [_miscellaneous] Serializing aggregations and suggestions without typed keys
