java.lang.reflect.UndeclaredThrowableException
	at jdk.proxy2/jdk.proxy2.$Proxy66.insert(Unknown Source)
	at cn.megmeet.nmcctimeseries.TimeseriesApplicationTests.save(TimeseriesApplicationTests.java:25)
	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
	at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
Причина: java.io.IOException: Невозможно распарсить тело ответа для Response{requestLine=POST /device_state_index/_doc?timeout=1m HTTP/1.1, host=http://127.0.0.1:9200, response=HTTP/1.1 201 Created}
	at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:2190)
	at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:2137)
	at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java)
	at org.elasticsearch.client.RestHighLevelClient.index(RestHighLevelClient.java:1241)
	at org.dromara.easyes.core.kernel.BaseEsMapperImpl.doInsert(BaseEsMapperImpl.java:733)
	... 22 более
Причина: java.lang.NullPointerException
	at java.base/java.util.Objects.requireNonNull(Objects.java:208)
	at org.elasticsearch.action.DocWriteResponse.<init>(DocWriteResponse.java:116)
	at org.elasticsearch.action.index.IndexResponse.<init>(IndexResponse.java:43)
	at org.elasticsearch.action.index.IndexResponse.<init>(IndexResponse.java:28)
	at org.elasticsearch.action.index.IndexResponse$Builder.build(IndexResponse.java:96)
	at org.elasticsearch.action.index.IndexResponse.fromXContent(