Elasticsearch exceptions while trying to update geoshape field

Hi
I have been getting the following elasticsearch exception when i try to update a geo_shape field from circle to polygon using java high level rest client. Can someone please help?

{"error":{"root_cause":[{"type":"parse_exception","reason":"field [radius] is supported for [CIRCLE] only"}],"type":"mapper_parsing_exception","reason":"failed to parse [geometry]","caused_by":{"type":"parse_exception","reason":"field [radius] is supported for [CIRCLE] only"}},"status":400}
		at org.elasticsearch.client.RestClient$1.completed(RestClient.java:357) ~[elasticsearch-rest-client-6.1.2.jar:6.1.2]
		at org.elasticsearch.client.RestClient$1.completed(RestClient.java:346) ~[elasticsearch-rest-client-6.1.2.jar:6.1.2]
		at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:122) ~[httpcore-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.responseCompleted(DefaultClientExchangeHandlerImpl.java:181) ~[httpasyncclient-4.1.4.jar:4.1.4]
		at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:448) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:338) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:265) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:81) ~[httpasyncclient-4.1.4.jar:4.1.4]
		at org.apache.http.impl.nio.client.InternalIODispatch.onInputReady(InternalIODispatch.java:39) ~[httpasyncclient-4.1.4.jar:4.1.4]
		at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:114) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:162) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:337) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:315) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:276) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:104) ~[httpcore-nio-4.4.11.jar:4.4.11]
		at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:591) ~[httpcore-nio-4.4.11.jar:4.4.11]
		... 1 common frames omitted
Caused by: org.elasticsearch.ElasticsearchException: Elasticsearch exception [type=parse_exception, reason=field [radius] is supported for [CIRCLE] only]
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:490) ~[elasticsearch-6.1.2.jar:6.1.2]
	at org.elasticsearch.ElasticsearchException.fromXContent(ElasticsearchException.java:406) ~[elasticsearch-6.1.2.jar:6.1.2]
	at org.elasticsearch.ElasticsearchException.innerFromXContent(ElasticsearchException.java:435) ~[elasticsearch-6.1.2.jar:6.1.2]
	at org.elasticsearch.ElasticsearchException.failureFromXContent(ElasticsearchException.java:594) ~[elasticsearch-6.1.2.jar:6.1.2]
	at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:169) ~[elasticsearch-6.1.2.jar:6.1.2]
	... 112 common frames omitted

Here's my mapping

{
  "bigpolygons": {
    "mappings": {
      "bigpolygon": {
        "properties": {
          "geometry": {
            "type": "geo_shape"
          },
          "id": {
            "type": "keyword"
          },
          "type": {
            "type": "text",
            "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
            }
          }
        }
      }
    }
  }

Elasticsearch version - 6.1.2
Java high level rest client version - 6.1.2
Java version - 12

Could you share the type of shape you are trying to index? It seems there is something off in the definition.

Existing:

{
  "id": "28f28e33-c252-401e-8c58-790371e8a72f",
  "geometry": {
    "type": "Circle",
    "coordinates": [
      -80.16079149891036,
      26.1555738384032
    ],
    "radius": "1640.35ft"
  },
  "type": "plan"
}

I am trying to update this using update API mentioned in https://www.elastic.co/guide/en/elasticsearch/client/java-rest/6.1/java-rest-high-document-update.html

update json

{
  "id": "28f28e33-c252-401e-8c58-790371e8a72f",
  "geometry": {
    "coordinates": [
      [
        [
          -71.0709988886577,
          42.43068071340372
        ],
        [
          -71.06271904724004,
          42.43507640849123
        ],
        [
          -71.05298660206532,
          42.42842914043001
        ],
        [
          -71.06359060949553,
          42.42499801656919
        ],
        [
          -71.0709988886577,
          42.43068071340372
        ]
      ]
    ],
    "type": "Polygon"
  },
  "type": "plan"
}

It would help if you can share is the code where you are performing the update. From the Kibana console seems to work fine.