anchor.diff:  ====
   
   Just like with __consumes__, producible media type expressions can be negated as in
  -__!text/plain__ to match to all requests other than those with an __Accept__ header
  -value of __text/plain__. Also consider using constants provided in `MediaType` such
  +`!text/plain` to match to all requests other than those with an `Accept` header
  +value of `text/plain`. Also consider using constants provided in `MediaType` such
   as `APPLICATION_JSON_VALUE` and `APPLICATION_JSON_UTF8_VALUE`.
   
   [TIP]
  
positive.code: 
  		// ...
  
  		@RequestMapping(method = RequestMethod.GET)
  		public String setupForm(**@RequestParam("petId") int petId**, ModelMap model) {
  			Pet pet = this.clinic.loadPet(petId);
  			model.addAttribute("pet", pet);
  
negative.code: [source,java,indent=0]
  [subs="verbatim,quotes"]
  ----
  	@PostMapping
  	public String processSubmit(**@ModelAttribute("pet") Pet pet**, Model model, **BindingResult result**) { ... }
  ----
  
  