Getting the Object from searchResponse

Elastic Stack Elasticsearch
1

I am trying to retrieve the Object from my searchresponse which I obtained through

searchResponse = restHighLevelClient.search(searchRequest);

I am using the following method

    SearchHit[] result = searchResponse.getHits().getHits();

    List<SearchHit> result2 = Arrays.asList(result);

    List<CheckoutCartActivity> result3 = new ArrayList<>();

    for (SearchHit searchHit : result2)
    {
        Map<String, Object> resultMap = searchHit.getSourceAsMap();
        System.out.println("resultMap is " + resultMap);
        result3.add(objectMapper.convertValue(resultMap,CheckoutCartActivity.class));
    }

       return  result2;

For which I am getting NullPointerException at

result3.add(objectMapper.convertValue(resultMap,CheckoutCartActivity.class));

Can you please help me with this.

Is there any alternate and better way to retrieve the Class Object from searchResponse ?

2

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