anchor.diff:  using the Response class of mangoo I/O. Here is an example of how a
   controller method may look like.
   
  -[source,java]
  +[source]
   -----------------------------
   public Response index() {
       return Response.withOk();
  
positive.code: in your
  class.
  
  [source,java]
  --------------------
  @Inject
  private Cache cache;
  
negative.code: the mangoo I/O Form class. Here is an example of how this might look
  like
  
  [source]
  ----------------------------------
  public Response index(Form form) {
      ...
  