Missing required property 'Builder.<variant kind>'

[fabriziofortino]

Java API client version

7.17.2

Java version

openjdk version "11.0.2" 2019-01-15

Elasticsearch Version

7.12.2

Problem description

code

GetFieldMappingRequest.Builder fmr = new GetFieldMappingRequest.Builder();
fmr.index(indexName).fields(fieldName);
GetFieldMappingResponse fieldMapping = esClient.indices().getFieldMapping(fmr.build());

throws

co.elastic.clients.util.MissingRequiredPropertyException: Missing required property 'Builder.<variant kind>'

	at co.elastic.clients.util.ApiTypeHelper.requireNonNull(ApiTypeHelper.java:76)
	at co.elastic.clients.elasticsearch._types.mapping.Property.<init>(Property.java:188)
	at co.elastic.clients.elasticsearch._types.mapping.Property.<init>(Property.java:51)
	at co.elastic.clients.elasticsearch._types.mapping.Property$Builder.build(Property.java:1436)
	at co.elastic.clients.json.BuildFunctionDeserializer.deserialize(BuildFunctionDeserializer.java:48)
	at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
	at co.elastic.clients.json.JsonpDeserializerBase$StringMapDeserializer.deserialize(JsonpDeserializerBase.java:346)
	at co.elastic.clients.json.JsonpDeserializerBase$StringMapDeserializer.deserialize(JsonpDeserializerBase.java:332)
	at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
	at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:72)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:176)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:137)
	at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
	at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79)
	at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
	at co.elastic.clients.json.ObjectDeserializer$FieldObjectDeserializer.deserialize(ObjectDeserializer.java:72)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:176)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:137)
	at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
	at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79)
	at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
	at co.elastic.clients.transport.endpoints.DictionaryResponse.lambda$setupDictionaryResponseDeserializer$0(DictionaryResponse.java:148)
	at co.elastic.clients.json.ObjectDeserializer.parseUnknownField(ObjectDeserializer.java:205)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:174)
	at co.elastic.clients.json.ObjectDeserializer.deserialize(ObjectDeserializer.java:137)
	at co.elastic.clients.json.JsonpDeserializer.deserialize(JsonpDeserializer.java:75)
	at co.elastic.clients.json.ObjectBuilderDeserializer.deserialize(ObjectBuilderDeserializer.java:79)
	at co.elastic.clients.json.DelegatingDeserializer$SameType.deserialize(DelegatingDeserializer.java:43)
	at co.elastic.clients.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.performRequest(RestClientTransport.java:147)
	at co.elastic.clients.elasticsearch.indices.ElasticsearchIndicesClient.getFieldMapping(ElasticsearchIndicesClient.java:1062)

[cgendreau]

I'm facing the same issue, if I update the version to 7.17.4 the error is more explicit.

o.elastic.clients.json.JsonpMappingException: Error deserializing co.elastic.clients.elasticsearch._types.mapping.Property: Unknown 'type' value: 'icu_collation_keyword'

But this is still a problem.

[swallez]

The problem with icu_collation_keyword has been fixed in PR #370 that adds support for plugin-defined extensions. It is part of versions 8.4.0 and 7.17.6 that will be released in the coming days.

The original error lacks precision in its message (this has been improved since then) but looks like the same issue.