l-trotta
commented
3 months ago Hello! As stated in the Readme:
The Java client is forward compatible; meaning that the client supports communicating with greater or equal minor versions of Elasticsearch without breaking
We don't guarantee compatibility with older versions of the server, especially with older major versions. The disableRequiredPropertiesCheck can help in cases where the difference between versions is only properties becoming required, but if it doesn't work then the only possible solution is to either upgrade the server (recommended) or downgrade the client (not recommended).
Java API client version
8.14.3
Java version
17
Elasticsearch Version
7.16.2
Problem description
After upgrading ES client to the latest version starts to get following exception:
co.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch.core.SearchResponse: co.elastic.clients.util.MissingRequiredPropertyException: Missing required property 'ClusterStatistics.running' (JSON path: _clusters) (line no=1, column no=139, offset=-1)
I follow guidelines from: https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/current/missing-required-property.html
And try to use: https://artifacts.elastic.co/javadoc/co/elastic/clients/elasticsearch-java/8.14.0/co/elastic/clients/util/ApiTypeHelper.html#DANGEROUS_disableRequiredPropertiesCheck(boolean)
Now I am getting: Caused by: co.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch.core.SearchResponse: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "co.elastic.clients.util.ApiTypeHelper.requireNonNull(Object, Object, String)" is null (JSON path: _clusters) (line no=1, column no=3348, offset=-1) at
…….
……
Caused by: java.lang.NullPointerException: Cannot invoke "java.lang.Integer.intValue()" because the return value of "co.elastic.clients.util.ApiTypeHelper.requireNonNull(Object, Object, String)" is null