JavaFx - Caused by: java.lang.StackOverflowError

Olá estou com um problema em minhas classes Java. Quando tento criar um novo "Fornecedor", o console me resulta o Caused by: java.lang.StackOverflowError.

Aqui estão as minhas classes que interagem entre si. Se alguém poder me auxiliar na resolução deste problema, agradeço.

package view;

import application.Main;
import javafx.fxml.FXML;
import javafx.scene.control.Label;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.stage.Stage;
import model.Fornecedor;
import model.Produto;

public class FornecedorOverViewController {

@FXML

 private TableView<Fornecedor> tabelaFornecedor;

 @FXML
 private TableColumn<Fornecedor, Integer> idFornecedor;

 @FXML
 private TableColumn<Fornecedor, String> nomeFornecedor;

 @FXML
 private TableColumn<Fornecedor, String> telefoneFornecedor;

 @FXML
 private Label nome;

 @FXML
 private Label telefone;

 public FornecedorOverViewController() {

 }
 int i = 0;

	private Main main;

 @FXML
 private void initialize() {

 nomeFornecedor.setCellValueFactory(
 cellData -> cellData.getValue().nomeProperty());
 telefoneFornecedor.setCellValueFactory(
 cellData -> cellData.getValue().telefoneProperty());
 idFornecedor.setCellValueFactory(new PropertyValueFactory<>("id"));
 showFornecedorDetails(null);

 tabelaFornecedor.getSelectionModel().selectedItemProperty().addListener(
 (observable, oldValue, newValue) -> showFornecedorDetails(newValue));

 }
 public void setMainI(Main main) {
 this.main = main;
 tabelaFornecedor.setItems(main.getFornecedorData());
 }

 private void showFornecedorDetails(Fornecedor fornecedor) {
 if (fornecedor != null) {
 nome.setText(fornecedor.getNome());
 telefone.setText(fornecedor.getTelefone());
 } else {
 nome.setText(" ");
 telefone.setText(" ");
 }
 }
 @FXML
 private void handleDeleteFornecedor() {
 int selectedIndex = tabelaFornecedor.getSelectionModel().getSelectedIndex();
 if (selectedIndex >= 0) {
 tabelaFornecedor.getItems().remove(selectedIndex);
 } else {
 }
 }
	@FXML
	private void handleNewFornecedor() {
 Fornecedor newFornecedor = new Fornecedor(null,0);
 boolean okClicked = main.showFornecedorEditDialog(newFornecedor);
 if (okClicked) {
 main.getFornecedorData().add(newFornecedor);
 }
	}

}

package application;

import java.io.IOException;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.BorderPane;
import javafx.stage.Modality;
import javafx.stage.Stage;
import model.Categoria;
import model.Fornecedor;
import model.Produto;
import model.Usuario;
import view.FornecedorEditDialog;
import view.FornecedorOverViewController;
import view.LoginController;
import view.ProdutoEditDialog;
import view.ProdutoOverViewController;
import view.RootLayoutController;

public class Main extends Application {

	private Stage primaryStage;
	private BorderPane rootLayout;
	private AnchorPane loginLayout;

	private ObservableList<Produto> produtoData = FXCollections.observableArrayList();
	private ObservableList<Fornecedor> fornecedorData = FXCollections.observableArrayList();
	private ObservableList<Usuario> usuarioData = FXCollections.observableArrayList();
	private ObservableList<Categoria> categoriaData = FXCollections.observableArrayList();

	public Main() {
 int i =0;
 produtoData.add(new Produto("Skol", 5.99, ++i,199));
 produtoData.add(new Produto("Budweiser", 8.99, ++i,2002));
 produtoData.add(new Produto("Heineken", 12.00, ++i,22));
 i = 0;
 fornecedorData.add(new Fornecedor("Ambev", ++i));
 fornecedorData.add(new Fornecedor("Cervejaria Heineken", ++i));
 fornecedorData.add(new Fornecedor("Coca-Cola", ++i));
 fornecedorData.add(new Fornecedor("Fonte-Ijuí", ++i));
 i = 0;

 usuarioData.add(new Usuario("mateus", "m16s97aa"));
 usuarioData.add(new Usuario("dala", "123456"));
 usuarioData.add(new Usuario("root", "654321"));

 categoriaData.add(new Categoria("Cerveja", ++i));
 categoriaData.add(new Categoria("Vinho", ++i));
 categoriaData.add(new Categoria("Vodka", ++i));
 categoriaData.add(new Categoria("Cachaca", ++i));
 i = 0;

	}

	@Override
	public void start(Stage primaryStage) {
 this.primaryStage = primaryStage;
 this.primaryStage.setTitle("Wine And Beer");

 login();
 /*
 if(click) {
 initRootLayout();

 showProdutosOverView();
 }
 */

	}

	public void initRootLayout() {
 try {
 // Load root layout from fxml file.
 FXMLLoader loader = new FXMLLoader();
 loader.setLocation(Main.class.getResource("/view/RootLayout.fxml"));
 rootLayout = (BorderPane) loader.load();

 // Show the scene containing the root layout.
 Scene scene = new Scene(rootLayout);
 primaryStage.setScene(scene);

 // Give the controller access to the main app.
 RootLayoutController controller = loader.getController();
 controller.setMain(this);

 primaryStage.show();
 } catch (IOException e) {
 e.printStackTrace();
 }

 /*
 // Try to load last opened person file.
 File file = getPersonFilePath();
 if (file != null) {
 loadPersonDataFromFile(file);
 }
 */
	}
	public void logar() {
 primaryStage.close();

 initRootLayout();

 showProdutosOverView();
 //return true;
	}
	public void login() {
 try {
 // Load root layout from fxml file.
 FXMLLoader loader = new FXMLLoader();
 loader.setLocation(Main.class.getResource("/view/Login.fxml"));
 loginLayout = (AnchorPane) loader.load();

 // Show the scene containing the root layout.
 Scene scene = new Scene(loginLayout);
 primaryStage.setScene(scene);

 // Give the controller access to the main app.
 LoginController controller = loader.getController();
 controller.setMain(this);

 primaryStage.show();
 } catch (IOException e) {
 e.printStackTrace();
 }
	}

	public void showProdutosOverView() {
 try {
 // Load person overview.
 FXMLLoader loader = new FXMLLoader();
 loader.setLocation(Main.class.getResource("/view/Produto.fxml"));
 AnchorPane personOverview = (AnchorPane) loader.load();

 // Set person overview into the center of root layout.
 rootLayout.setCenter(personOverview);

 // Give the controller access to the main app.
 ProdutoOverViewController controller = loader.getController();
 controller.setMain(this);

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

	public Stage getPrimaryStage() {
 return primaryStage;
	}
	public ObservableList<Produto> getProdutoData() {
 return produtoData;
	}
	public ObservableList<Fornecedor> getFornecedorData(){
 return fornecedorData;
	}
	public ObservableList<Usuario> getUsuarioData(){
 return usuarioData;
	}
	public ObservableList<Categoria> getCategoriaData(){
 return categoriaData;
	}

	public static void main(String[] args) {
 launch(args);
	}
	public boolean showProdutoEditDialog(Produto produto) {
 try {
 // Load the fxml file and create a new stage for the popup dialog.
 FXMLLoader loader = new FXMLLoader();
 loader.setLocation(Main.class.getResource("/view/ProdutoEditDialog.fxml"));
 AnchorPane page = (AnchorPane) loader.load();

 // Create the dialog Stage.
 Stage dialogStage = new Stage();
 dialogStage.setTitle("Editar Produto");
 dialogStage.initModality(Modality.WINDOW_MODAL);
 dialogStage.initOwner(primaryStage);
 //	dialogStage.getIcons().add(new Image("file:resources/images/edit.png"));
 Scene scene = new Scene(page);
 dialogStage.setScene(scene);

 // Set the person into the controller.
 ProdutoEditDialog controller = loader.getController();
 controller.setDialogStage(dialogStage);
 controller.setProduto(produto);
 controller.lotarCombo(fornecedorData, categoriaData);
 controller.setMain(this);

 // Show the dialog and wait until the user closes it
 dialogStage.showAndWait();

 return controller.isOkClicked();
 } catch (IOException e) {
 e.printStackTrace();
 return false;
 }
	}

	public boolean showFornecedorEditDialog(Fornecedor fornecedor) {
 try {
 // Load the fxml file and create a new stage for the popup dialog.
 FXMLLoader loader = new FXMLLoader();
 loader.setLocation(Main.class.getResource("/view/FornecedorEditDialog.fxml"));
 AnchorPane page = (AnchorPane) loader.load();

 // Create the dialog Stage.
 Stage dialogStage = new Stage();
 dialogStage.setTitle("Editar Fornecedor");
 dialogStage.initModality(Modality.WINDOW_MODAL);
 dialogStage.initOwner(primaryStage);
 Scene scene = new Scene(page);
 dialogStage.setScene(scene);

 // Set the person into the controller.
 FornecedorEditDialog controller = loader.getController();
 controller.setDialogStage(dialogStage);
 controller.setFornecedor(fornecedor);
 controller.setMain(this);

 // Show the dialog and wait until the user closes it
 dialogStage.showAndWait();

 return controller.isOkClicked();
 } catch (IOException e) {
 e.printStackTrace();
 return false;
 }
	}

}

package view;

import application.Main;
import javafx.fxml.FXML;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import model.Fornecedor;
import model.Produto;

public class FornecedorEditDialog {

@FXML

	private TextField nome;
	@FXML
	private TextField telefone;
	private Stage dialogStage;
	private Main main;
	private int id;
	private Fornecedor fornecedor;
 private boolean okClicked = false;

 @FXML
 private void initialize() {
 }

 public void setDialogStage(Stage dialogStage) {
 this.dialogStage = dialogStage;
 }

 public void setMain(Main main) {
 this.main = main;
 id = main.getFornecedorData().size();
 id = id+1;
 }
 public void setFornecedor(Fornecedor fornecedor) {
 this.fornecedor = fornecedor;
 nome.setText(fornecedor.getNome());
 telefone.setText(fornecedor.getTelefone());

 }
 public boolean isOkClicked() {
 return isOkClicked();
 }
 @FXML
 private void handleOk() {
 if (isInputValid()) {
 fornecedor.setNome(nome.getText());
 fornecedor.setTelefone(telefone.getText());

 if(fornecedor.getId() == 0) {
 fornecedor.setId(this.id);
 }

 okClicked = true;
 dialogStage.close();
 }
 }

 @FXML
 private void handleCancel() {
 dialogStage.close();
 }
 private boolean isInputValid() {
 String errorMessage = "";

 if (nome.getText() == null || nome.getText().length() == 0) {
 errorMessage += "Produto Invalido!\n";
 }
 if (telefone.getText() == null || telefone.getText().length() == 0) {
 errorMessage += "Preco invalidos!\n";
 }
 if (errorMessage.length() == 0) {
 return true;
 } else {
 // Show the error message.

 return false;
 }
 }

}