title: Spring RestTemplate ResponseEntity body is blank
body: <p>I am calling a client Endpoint :
      <code>ResponseEntity&lt;String&gt; responseBody = restTemplate.exchange(destEndpoint, HttpMethod.POST, entity, String.class);</code></p>
  
  <p>But when I call :
      <code>responseBody.getBody();</code>
  I get blank response. </p>
  
  <p>But When I use interceptor(ClientHttpRequestInterceptor) and log response I can see the response body is printed.
  <code>List&lt;ClientHttpRequestInterceptor&gt; interceptors = new ArrayList&lt;&gt;();
              interceptors.add(new LoggingRequestInterceptor());
              restTemplate.setInterceptors(interceptors);</code></p>
  
  <p>I did try extending the class <code>HttpMessageConverterExtractor&lt;String&gt;</code> and while debugging I can only see header and status and there is no body in the response object.</p>