Missing required property 'Hit.id' when stored_fields="_none_"

[mgorpenko]

Java API client version

7.17.7

Java version

17

Elasticsearch Version

7.17.5

Problem description

I'm not able to disable stored_fields in the search request using Java API Client (but was able with RestHighLevelClient).

Creating a request:
new SearchRequest.Builder().storedFields("_none_")...;
and sending it:
asyncClient.search(request, String.class)

That causes an error while response parsing:

co.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch.core.search.HitsMetadata: co.elastic.clients.util.MissingRequiredPropertyException: Missing required property 'Hit.id' (JSON path: hits.hits[0]) (line no=1, column no=362, offset=-1)(Error deserializing co.elastic.clients.elasticsearch.core.search.HitsMetadata: co.elastic.clients.util.MissingRequiredPropertyException: Missing required property 'Hit.id' (JSON path: hits.hits[0]) (line no=1, column no=362, offset=-1))
at co.elastic.clients.json.JsonpMappingException.from0(JsonpMappingException.java:134)
at co.elastic.clients.json.JsonpMappingException.from(JsonpMappingException.java:125)
at co.elastic.clients.json.JsonpDeserializerBase$ArrayDeserializer.deserialize(JsonpDeserializerBase.java:320)
at co.elastic.clients.json.JsonpDeserializerBase$ArrayDeserializer.deserialize(JsonpDeserializerBase.java:280)
at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:71)
at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:180)
at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:136)
at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79)
at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:71)
at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:180)
at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:136)
at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79)
at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
at co.elastic.clients.transport.endpoints.EndpointWithResponseMapperAttr$1.deserialize(EndpointWithResponseMapperAttr.java:56)
at co.elastic.clients.transport.rest_client.RestClientTransport.decodeResponse(RestClientTransport.java:328)
at co.elastic.clients.transport.rest_client.RestClientTransport.getHighLevelResponse(RestClientTransport.java:294)
at co.elastic.clients.transport.rest_client.RestClientTransport.access$200(RestClientTransport.java:63)
at co.elastic.clients.transport.rest_client.RestClientTransport$1.onSuccess(RestClientTransport.java:168)
at org.elasticsearch.client.RestClient$FailureTrackingResponseListener.onSuccess(RestClient.java:678)
at org.elasticsearch.client.RestClient$1.completed(RestClient.java:399)
at org.elasticsearch.client.RestClient$1.completed(RestClient.java:393)
at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:122)
at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.responseCompleted(DefaultClientExchangeHandlerImpl.java:182)
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:448)
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:338)
at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:265)
at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:87)
at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:40)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591)
at java.lang.Thread.run(Thread.java:833)
Caused by:co.elastic.clients.util.MissingRequiredPropertyException: Missing required property 'Hit.id'(Missing required property 'Hit.id')
at co.elastic.clients.util.ApiTypeHelper.requireNonNull(ApiTypeHelper.java:76)
at co.elastic.clients.elasticsearch.core.search.Hit.(Hit.java:117)
at co.elastic.clients.elasticsearch.core.search.Hit.(Hit.java:59)
at co.elastic.clients.elasticsearch.core.search.Hit$Builder.build(Hit.java:775)
at co.elastic.clients.elasticsearch.core.search.Hit$Builder.build(Hit.java:443)
at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:86)
at co.elastic.clients.json.JsonpDeserializerBase$ArrayDeserializer.deserialize(JsonpDeserializerBase.java:316)

:

[stewseo]

Disabling required properties checks, suggested in the documentation:

• https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/current/missing-required-property.html

[mgorpenko]

Right. It's a temporal workaround.
From the same documentation:
"If the issue is still present on the latest version, open an issue so that we can fix it in the next release. Please help us to improve the Java API Client."

[l-trotta]

fixed, will be part of the next release