CODEWITHSUNDEEP
javaspringspring-bootmicroservices
ima.technophyle
ima.technophyle

Reputation: 667

Why HttpStatusCodeException is not caught when a 400 is thrown?

cConsider the below class, when a 400 BAD_REQUEST is thrown by the rest call, I expect the HttpStatusCodeException to get caught, but instead it catches unexpected error Exception and throws an Internal Server Error. Why is HttpStatusCodeException not caught when a "BAD_REQUEST" is thrown?

 class Abc {
    
     @Autowired
     RestTemplate template;
    
     
     void connect(){
    
        ResponseEntity<String> response;
    
        try{
            response=restTemplate.postForEntity("url", HTTP_ENTITY, String.class);
    
        } catch( HttpStatusCodeException ex){
             throws new CustomErrorResponse(ex.getStatusCode());
        } catch (Exception ex){
             throws new CustomErrorResponse(Internal_Server_Error);
        }
      }
    
    }

JUnit Testcases

 when(restTemplate.postForEntity(anyString(),any(),eq(String.class))).thenThrow(new CustomErrorResponse(HttpStatus.BAD_REQUEST));

But Internal Server is thrown

Upvotes: 1

Views: 1569

Answers (2)

Ngo Tuoc
Ngo Tuoc

Reputation: 71

Your test case with restTemplate then throws CustomErrorResponse not HttpStatusCodeException

Solution:

when(restTemplate.postForEntity(anyString(),any(),eq(String.class))).thenThrow(new HttpStatusCodeException(..));

Upvotes: 1

Daly
Daly

Reputation: 879

If the connect method can have a different return type, the easiest way would be to return a ResponseEntity and pass the status code in to that.

     ResponseEntity<Object> connect(){
    
        ResponseEntity<String> response;
    
        try{
            response=restTemplate.postForEntity("url", HTTP_ENTITY, String.class);
    
        } catch( HttpStatusCodeException ex){
             response = new ResponseEntity<>("There was an issue with the POST call.", ex.getStatusCode());
        } catch (Exception ex){
             throws new CustomErrorResponse(Internal_Server_Error);
        }
        return responseEntity;
     }

Upvotes: 0

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