docs: protected void readResponseHeaders(HttpState state, HttpConnection conn)
      throws IOException, HttpException {
          LOG.trace("enter HttpMethodBase.readResponseHeaders(HttpState,"
              + "HttpConnection)");
  
          getResponseHeaderGroup().clear();
          
          Header[] headers = HttpParser.parseHeaders(
              conn.getResponseInputStream(), getParams().getHttpElementCharset());
          // Wire logging moved to HttpParser
          getResponseHeaderGroup().setHeaders(headers);
      }