EXCEPTION - com.google.gson.stream.MalformedJsonException: Unterminated object at line 1 column 26 path $.[0].STATE"

This is My POST REQUEST. Where Data is an Object, id & resource is String

private String id;
private String resourceName;
private Object data;

{
    "id": "150",
    "resourceName": "Fabrik-Resource",
    "data": {
        "RECORD": [
            {
                "STATE": "TORONTO CITY"
            },
            {
                "WORK": "SERVICE"
            }
        ]
    }
}

Now if i give Space between TORONTO CITY ,It will give me an exception

com.google.gson.stream.MalformedJsonException: Unterminated object at line 1 column 26 path $.[0].STATE"

but when I send requests without spaces as keys and values like -

        "RECORD": [
            {
                "STATE": "TORONTOCITY"
            },
            {
                "WORK": "SERVICE"
            }
        ]
    }

It work but not with Space

CODE -

    public ResponseEntity<MasterBlockChainResponse> dummy(@RequestBody(required=false) Masterpayload valueobject) {
        Gson gson = new Gson();
        MasterBlockChainResponse response = new MasterBlockChainResponse();
        Object json = valueobject.getData();
        
        Map<String, Object> map = gson.fromJson(json.toString(), Map.class);
        response.setId(valueobject.getId());
        response.setResourceName(valueobject.getResourceName());
        response.setData(map);
        
        return ResponseEntity.status(HttpStatus.OK).body(response);
        
    }

CodePudding user response：

Your object data is a simple object because you need that data is like this for parsing

Data{
List<String> RECORD;
}

so your principal class

Class{
String id;
String resourceName;
Data data;
}

And not a map key-value. in this way you shouldn't have any problems

CodePudding user response：

Hi this is because of the line:

Map<String, Object> map = gson.fromJson(json.toString(), Map.class);
    

when you use toString method it doesn't convert the object into a legit JSON Object, try and use ObjectMapper. i.e.

Map<String, Object> map = gson.fromJson(objectMapper.writeValueAsString(json), Map.class);

Quick Comparison of the difference :

• ToString Produces:

{RECORD=[{STATE=TORONTO CITY}, {WORK=SERVICE}]}

• writeValueAsString Produces:

{"RECORD":[{"STATE":"TORONTO CITY"},{"WORK":"SERVICE"}]}