Doubts with dependency injection with Spring (object injected returning null)

Good afternoon everyone.

Personally, I have a problem that I should probably be missing or forgetting the order of something.

My case is that I have a two controllers. One is DestinationController.java and the other is FileController.java. I will paste the classes below omitting some methods to reduce size and become easier to understand:

DestinationController.java

@Controller
@Transactional(propagation = Propagation.REQUIRED)
public class DestinationController{

    final static Logger logger = LoggerFactory.getLogger(DestinationController.class);

        //Injeta objetos da minha classe de serviço.
    @Autowired
    public DashboardFacade dashboardFacade;

    //Retorna o body do destino para inclusão
    @RequestMapping("destination")
    public String getMenudestination(Model model){

                //Funciona normalmente. Ou seja, ele retorna a lista para mim sem disparar exeções
        List<Destination> destinationList = dashboardFacade.getDestinationList();
        model.addAttribute("destination", destinationList);
        return "destination/destinationList";    
    }
     @ModelAttribute("destination")
     public Destination getDestinationObject() {
      return new Destination();
     }


    //Adicona um novo destino
    @RequestMapping(value="/addDestination", method = RequestMethod.POST)
    public ModelAndView addDestination(@ModelAttribute("destination") @Valid Destination destination, BindingResult result, RedirectAttributes redirectAttributes, Model model){

        List<String> error = new ArrayList<>();

        if(result.hasErrors()){
            List<ObjectError> allErrors = result.getAllErrors();


            for (ObjectError objectError : allErrors) {
                String objectName = objectError.getDefaultMessage();
                error.add(objectName);
            }

            model.addAttribute("errors", error);
            model.addAttribute("validator", true);
            setnewDestination(model);

            return new ModelAndView("destination/newDestination");

        }else{
            if(destination.getCategories().getIdCategory() == -1){            
                error.add("Você precisa selecionar uma categoria.");
                model.addAttribute("errors", error);
                return new ModelAndView("destination/newDestination");

            }else{
                                //Aqui eu instancio um objeto do FileController passando um parametro (creio que aqui eu esteja usando uma abordagem errada)
                FileController fileController = new FileController();
                fileController.imageReplication(destination.getDtName());

                Category category = dashboardFacade.getCategoryId(destination.getCategories().getIdCategory());
                destination.setCategories(category);

                dashboardFacade.addDestination(destination);

                redirectAttributes.addFlashAttribute("message", "O destino " + destination.getDtName() + " foi adicionado(a) com sucesso!");

                logger.info("Destino " + destination.getDtName() + " adicionado com sucesso para a agência: " + dashboardFacade.getAgency());
                return new ModelAndView(new RedirectView("destination"));
            }
        }
    }
}

FileController.java

@Controller
@Transactional(propagation = Propagation.REQUIRED)
@RequestMapping("/file")
public class FileController {

    final static Logger logger = LoggerFactory.getLogger(FileController.class);


    @Autowired
    public DashboardFacade dashboardFacade;

        //Quando eu passo um objeto do tipo FileMeta e chamo o dashboardFacade.addImagePathTmp(pathJson); o funcionamento é normal. o dashboardFacade não me retorna nulo
    public void generateJson(FileMeta fileMeta) {
        Gson gson = new Gson();
        String generated = gson.toJson(fileMeta);
        pathJson = new ImageJson();
        pathJson.setJson(generated);
        dashboardFacade.addImagePathTmp(pathJson);
        logger.info("Imagem adicionada.");
    }


    public Set<Image> imageReplication(String destination) {
        Set<Image> img = new HashSet<>();
        try {
                        // Aqui que mora o problema. Quando o metodo é invocado pelo outro controller (DestinationController.java) Meu dashboradFacade é nulo.
            List<ImageJson> imagePathTmpList = dashboardFacade.getImagePathTmpList();

            Gson gson = null;

            String subdomain = dashboardFacade.getAgency().getSubdomain();
            File base = new File("/home/manolo/joocebox-img/" + subdomain + "/"
                    + destination);

            for (ImageJson imageJsonList : imagePathTmpList) {
                gson = new Gson();
                FileMeta imgTmp = gson.fromJson(imageJsonList.getJson(), FileMeta.class);
                String path = base + "/" + imgTmp.getFileName();
                System.out.println(path);

            }

        } catch (NullPointerException e) {
            e.printStackTrace();
        }

        return img;
    }
}

Well, I made some comments in the code to make it easier to see. In short, the imageReplication(String destination) method when called by my controller DestinationController.java dashbordFacade Within the FileController is returned null by firing a nullPointerExeption.

Can Algume take away my doubt of what I might be doing wrong?

A hug to everyone and success.