Spring RestTemplate: Cannot deserialize instance of `java.lang.Integer` error

Hello i am encountering an issue while using RestTemplate to make requests to another application in my microservices architecture. When I try to fetch data using RestTemplate, I receive the following error:

Error while extracting response for type [class java.lang.Integer] and content type [application/xml;charset=UTF-8]; nested exception is org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot deserialize instance of `java.lang.Integer` out of START_OBJECT token; nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.lang.Integer` out of START_OBJECT token

Rest Template Request =

  public Integer getDurationWithContentId(Long id)          throws Exception {    URL url = discoveryServiceHandler.buildApiUrl("vod-client","/content/" + id +"/duration");    return restTemplate.getForObject(url.toURI(), Integer.class);  }

controller of the application I request =

  @GetMapping("/{id}/duration")  public ResponseEntity<Integer> getRawVideoDuration(@PathVariable Long id) throws IOException {    log.info(LogGenerator.enter());    try {      return new ResponseEntity<>(contentService.getRawMediaDuration(id), HttpStatus.OK);    } catch (Exception e) {      log.error("Error in getRawVideoDuration: {}", e.getMessage());      throw e;    }  }

I tried to get response as a object but i get this error =

java.lang.RuntimeException: Unexpected response format: {=84} 

also i tried to request like that but i can't get response either

ResponseEntity<Integer> response = restTemplate.exchange(url.toURI(), HttpMethod.GET, null, new ParameterizedTypeReference<Integer>() {});