Error deserializing co.elastic.clients.elasticsearch._types.analysis.Analyzer: Property 'type' not found

Java API client version

8.4.0

Java version

JDK-17

Elasticsearch Version

7.17.2

Problem description

Trying to read settings for an index, throwing Error deserializing co.elastic.clients.elasticsearch._types.analysis.Analyzer: Property 'type' not found Exception

var indexSetting = new GetIndicesSettingsRequest.Builder().index("index_1000").build();

try {
    var settings = elasticSearchClientConfig.getElasticsearchIndicesClient().getSettings(indexSetting);
    System.out.println(settings);
} catch(Exception e) {
    e.printStackTrace();
}

Settings

{
    "index_1000": {
        "settings": {
            "index": {
                "analysis": {
                    "analyzer": {
                        "edgengram-analyzer": {
                            "tokenizer": "edge_ngram_tokenizer"
                        }
                    }
                }
            }
        }
    }
}

Exception trace

Error deserializing co.elastic.clients.elasticsearch._types.analysis.Analyzer: Property 'type' not found (JSON path: index_1000.settings.index.analysis.analyzer['edgengram-analyzer']) (line no=1, column no=56407, offset=-1)

[rockwotj]

FYI I’m able to workaround this via the following (kotlin):

val unwrapped = DelegatingDeserializer.unwrap(Analyzer._DESERIALIZER) as ObjectDeserializer<*>
unwrapped.setTypeProperty("type", "custom")

EDIT: simpler

[pasupathi-rajamanickam-odp]

Work around Java version, thanks a ton @rockwotj

ObjectDeserializer unwrapped = (ObjectDeserializer) DelegatingDeserializer.unwrap(Analyzer._DESERIALIZER );
unwrapped.setTypeProperty("type", "custom");