Closed
Description
Java API client version
7.17.6
Java version
17
Elasticsearch Version
7.17.6
Problem description
I am migrating elasticsearch from old to new elasticsearch java client.
I encounter this problem wherein I issue a request query, then the response has null values.
The code below is how I request:
SearchRequest request = requestBuilder.build();
SearchResponse<ObjectNode> response;
try {
response = elasticCLient.search(request, ObjectNode.class);
} catch (final IOException e) {
throw Exception(e);
}
As you can see it uses ObjectNode.class
Problem arises when the response has null value.
A null pointer exception happens which I think the response cannot be serialized because of the null value.
The response when viewed in kibana is like this:
{
"took" : 3,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 2,
"relation" : "eq"
},
"max_score" : null,
"hits" : [
{
"_index" : "robots_20220613111538",
"_type" : "_doc",
"_id" : "2",
"_score" : null,
"_source" : {
"path" : "C:/storage/1",
"name" : "barbie.jpg",
"collection" : [ ]
},
"sort" : [
null,
"barbie.jp",
1664377265000
]
},
{
"_index" : "robots_20220613111538",
"_type" : "_doc",
"_id" : "3",
"_score" : null,
"_source" : {
"path" : C:/storage/1",
"name" : "hellokitty.jpg",
"collection" : [ ]
},
"sort" : [
null,
"hellokitty.jpg",
1664377266000
]
}
]
}
}
How to deal with this kind of response?
Are there other ways instead of using ObjectNode.class ?
Any help is greatly appreciated.