IntelliJ with JavaFx: can't cnahge controller's folder

Question

I'm working on Java project with JavaFX using IntelliJ. My idea is separate .java file in differents folders for model-view-controller arq. To get in context, this is my project structure:

And each class (I've omit imports and redundant content for my issue):

• Main.java

  public class Main extends Application {
      @Override
      public void start(Stage stage) throws IOException {
          Parent parent = FXMLLoader.load(Main.class.getResource("main-view.fxml"));
          Scene scene = new Scene(parent, 900, 500);
          stage.setTitle("Tennis Tournament!");
          stage.setScene(scene);
          stage.show();
      }
  
      public static void main(String[] args) {
          launch();
      }
  }
  

• Views.java

  public class Views extends Controller implements Initializable{
  
      public Views() {
      }
  
      @Override
      public void initialize(URL arg0, ResourceBundle arg1) {
  
      }
  
      public void startTournament(ActionEvent event) throws IOException {
          this.parent = FXMLLoader.load(getClass().getResource("tournament-view.fxml"));
          //this.parent = FXMLLoader.load(getClass().getResource("tournament-view.fxml"));
          this.stage = (Stage) ((Node)event.getSource()).getScene().getWindow();
          this.scene = new Scene(this.parent);
          this.stage.setScene(this.scene);
          this.stage.show();
      }
  
      public void salir(ActionEvent event){ System.exit(0);}
  }
  

• TournamentController.java

  public class TournamentController extends Controller implements Initializable {
  
      @FXML
      private ChoiceBox choiceNumSets;
      private Tournament tournament;
      private Integer[] sets = {3, 5};
  
      public TournamentController(){
          tournament = new Tournament();
      }
  
      @Override
      public void initialize(URL url, ResourceBundle resourceBundle) {
          choiceNumSets.getItems().addAll(sets);
          choiceNumSets.setOnAction(this::setNumSets);
      }
  
      private void setNumSets(Event event) {
          tournament.setNum_sets((Integer) choiceNumSets.getValue());
          System.out.println(tournament.getNum_sets());
      }
  
      public void startMatch(ActionEvent event) throws IOException {
          this.parent = FXMLLoader.load(getClass().getResource("match-view.fxml"));
          this.stage = (Stage) ((Node)event.getSource()).getScene().getWindow();
          this.scene = new Scene(this.parent);
          this.stage.setScene(this.scene);
          this.stage.show();
      }
  
      public void salir(ActionEvent event){ System.exit(0);}
  
  
  }
  

• MatchController.java

  public class MatchController extends Controller implements Initializable {
      private Match match;
      public MatchController(){
          match = new Match();
      }
      @Override
      public void initialize(URL url, ResourceBundle resourceBundle) {
          match.setCurrentSets(1);
          System.out.println(match.getCurrentSets());
      }
      public void salir(ActionEvent event){ System.exit(0);}
  }
  

• model-info.java

  module dux.tennis_tournament {
      requires javafx.controls;
      requires javafx.fxml;
  
      opens dux.tennis_tournament.controllers to javafx.fxml;
      exports dux.tennis_tournament.controllers;
  
      opens dux.tennis_tournament to javafx.fxml;
      exports dux.tennis_tournament;
  
  }
  

• main-view.fxml -->

  fx:controller="dux.tennis_tournament.Views
  

• tournament-view.fxml

  fx:controller="dux.tennis_tournament.controllers.TournamentController">
  

• match-view.fxml

  fx:controller="dux.tennis_tournament.controllers.MatchController">
  

So as you can see, everything seems to be fine. But the problem comes when I try to open match-view.fxml from TournamentController.java. I get these errors:

Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
    at javafx.fxml@19-ea/javafx.fxml.FXMLLoader$MethodHandler.invoke(FXMLLoader.java:1857)
...
Caused by: java.lang.NullPointerException: Location is required.
...
at javafx.fxml@19-ea/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3196)
at dux.tennis_tournament/dux.tennis_tournament.controllers.TournamentController.startMatch(TournamentController.java:47)

where this last error is referenced to this line, in TournamentController.java

this.parent = FXMLLoader.load(getClass().getResource("match-view.fxml"));

I tried to delete "to javafx.fxml" in model-info.java, I called match-view.fxml from Main.java and everything woks fine, I also tried other similars ways to generate de Parent and even move Main.java into controllers folder, but nothing fix my problem...

I'm sure the problem is where I place the controllers, because in dux.tennis_tournament folder EVERYTHING works fine BUT if I move controllers to controllers folder, I don't get the spected results. I read it could be some module-info.java but I don't know how to figure this out. The easy solution is create ALL controllers in dux.tennis_tournament folder but this project is important to me so I want to do this in "the right way".