code: private JwtRequest getJwtRequest(HttpServletRequest request, HttpServletResponse response) throws IOException {
  		JwtRequest jwtRequest = (JwtRequest) request.getAttribute(WebConstants.JWT_REQUEST_ATTR);
  		if (jwtRequest == null) {
  			String errorMsg = Tr.formatMessage(tc, "JWT_REQUEST_ATTRIBUTE_MISSING",
  					new Object[] { request.getRequestURI(), WebConstants.JWT_REQUEST_ATTR });
  			Tr.error(tc, errorMsg);
  			response.sendError(HttpServletResponse.SC_NOT_FOUND, errorMsg);
  		}
  		return jwtRequest;
  	}
docs: Extracts the {@value WebConstants#JWT_REQUEST_ATTR} attribute from the
  provided request. That particular attribute is supposed to be created and
  set by the filter directing the request.
  
  @param request
  @param response
  @return
  @throws IOException