How to add list of objects class to arraylist?

Question

Need to add list of objects with errors to an arraylist body. code where I'm trying to set response.getErrors() to response.getBody():

String jsonResponse = restTemplate.postForObject(url, requestBody, String.class);
JavaType valueType = mapper.getTypeFactory().constructParametricType(ResponseContainer.class, type);
ResponseContainer<ResponseType> response = mapper.readValue(jsonResponse, valueType);
        // TODO if error != null put errors to body
if (response.getErrors() != null) {
    response.getBody().addAll(response.getErrors());
}
return response.getBody();

Model class:

@ApiModelProperty(notes = "Список параметров сообщения")
List<T> body = new ArrayList<T>();

@ApiModelProperty(notes = "Список ошибок")
List<ResponseError> errors;

Error is:

Error:(70, 35) java: no suitable method found for add(java.util.List<com.infin.it.integrator.impl.base.ResponseError>)
method java.util.Collection.add(ResponseType) is not applicable
  (argument mismatch; java.util.List<com.infin.it.integrator.impl.base.ResponseError> cannot be converted to ResponseType)
method java.util.List.add(ResponseType) is not applicable
  (argument mismatch; java.util.List<com.infin.it.integrator.impl.base.ResponseError> cannot be converted to ResponseType)

No I meant is "in List cannot be applied" the full error message? — Joakim Danielson, Jan 03 '19 at 08:35
ohhh, i'm sorry. Error is: addAll (java.util.Collection extends ResponseType>) in List cannot be applied to (java.util.List) — Chingiz Batirbaev, Jan 03 '19 at 08:58
It looks like com.infin.it.integrator.impl.base.ResponseError does not inherit from ResponseType. If both list are part of the ´`response` object why do you need to join them at all? — Joakim Danielson, Jan 03 '19 at 09:00
@ChingizBatirbaev please, show what `com.infin.it.integrator.impl.base.ResponseError ` looks like and include the detailed erro message in the question — Andrew Tobilko, Jan 03 '19 at 09:14
@ChingizBatirbaev - What happens if you change `ResponseContainer response` to `ResponseContainer response` ? — smilyface, Jan 03 '19 at 09:53
Also @ChingizBatirbaev - please update the error message (at least 5 to 6 lines) stack thread — smilyface, Jan 03 '19 at 09:55
ResponseError looks like this: @ApiModelProperty(notes = "Источник ошибки") String source; @ApiModelProperty(notes = "Код ошибки") String code; — Chingiz Batirbaev, Jan 03 '19 at 09:56
i can't change type of response to responseError because it's an integration with 3d party services. — Chingiz Batirbaev, Jan 03 '19 at 09:58
Error:(70, 35) java: no suitable method found for addAll(java.util.List) method java.util.Collection.addAll(java.util.Collection extends ResponseType>) is not applicable (argument mismatch; java.util.List cannot be converted to java.util.Collection extends ResponseType>) method java.util.List.addAll(java.util.Collection extends ResponseType>) is not applicable (argument mismatch; — Chingiz Batirbaev, Jan 03 '19 at 10:09
java.util.List cannot be converted to java.util.Collection extends ResponseType>) — Chingiz Batirbaev, Jan 03 '19 at 10:09
@ChingizBatirbaev - First of all, we are here to help. Please update the errors you mentioned in your question properly. — smilyface, Jan 03 '19 at 11:50
https://stackoverflow.com/questions/18442753/a-required-class-was-missing-while-executing-org-apache-maven-pluginsmaven-war keep this as an example - see how he has provided details of exception he got. — smilyface, Jan 03 '19 at 11:58
another example here https://stackoverflow.com/questions/29280705/spring-boot-admin-server-exception — smilyface, Jan 03 '19 at 11:59

score 0 · Accepted Answer · answered Jan 11 '19 at 06:23

I changed type of @ApiModelProperty(notes = "Список ошибок") List<ResponseError> errors; to List<T> errors = new ArrayList<T>(); Soon i added fields that came from response to my ResponseBaseModel.class, to take that fields and show an error.

That's solved my problem. Thanks for all to advices.

How to add list of objects class to arraylist?

1 Answers1