javaFX TableViewに値を表示することができない

Question

エラー内容

TableViewに値を入れようとすると下記のエラーが出てしまいます。
様々なサイトを見て、色々な方法を試してみたのですが全て同様のエラーが出てしまい、解決することが出来ません。

警告: Can not retrieve property 'name' in PropertyValueFactory: javafx.scene.control.cell.PropertyValueFactory@67f43230 with provided class type: class application.Person [日 9月 26 00:35:45 JST 2021]
警告: Can not retrieve property 'age' in PropertyValueFactory: javafx.scene.control.cell.PropertyValueFactory@e28a0bf with provided class type: class application.Person [日 9月 26 00:35:45 JST 2021]
警告: Can not retrieve property 'sex' in PropertyValueFactory: javafx.scene.control.cell.PropertyValueFactory@2bfa6ab2 with provided class type: class application.Person [日 9月 26 00:35:45 JST 2021]

該当のソースコード

package application;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;


public class Main extends Application {
	@Override
	public void start(Stage primaryStage) {
		try {
			AnchorPane root = (AnchorPane)FXMLLoader.load(getClass().getResource("TablePractice.fxml"));
			Scene scene = new Scene(root,600,400);
			scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch(Exception e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		launch(args);
	}
}

/**
 * "TablePractice.fxml"コントローラ・クラスのサンプル・スケルトン
 */
/**
 * "TablePractice.fxml"コントローラ・クラスのサンプル・スケルトン
 */

package application;

import java.net.URL;
import java.util.ResourceBundle;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;

public class TablePracticeController {

	@FXML // ResourceBundle that was given to the FXMLLoader
	private ResourceBundle resources;

	@FXML // URL location of the FXML file that was given to the FXMLLoader
	private URL location;

	@FXML // fx:id="table"
	private TableView<Person> table; // Value injected by FXMLLoader

	@FXML // fx:id="nameColumn"
	private TableColumn<Person, String> nameColumn; // Value injected by FXMLLoader

	@FXML // fx:id="ageColumn"
	private TableColumn<Person, String> ageColumn; // Value injected by FXMLLoader

	@FXML // fx:id="sexColumn"
	private TableColumn<Person, String> sexColumn; // Value injected by FXMLLoader

	private ObservableList<Person> tvObservableList = FXCollections.observableArrayList();


	@FXML // This method is called by the FXMLLoader when initialization is complete
	void initialize() {
		assert table != null : "fx:id=\"table\" was not injected: check your FXML file 'TablePractice.fxml'.";
		assert nameColumn != null : "fx:id=\"nameColumn\" was not injected: check your FXML file 'TablePractice.fxml'.";
		assert ageColumn != null : "fx:id=\"ageColumn\" was not injected: check your FXML file 'TablePractice.fxml'.";
		assert sexColumn != null : "fx:id=\"sexColumn\" was not injected: check your FXML file 'TablePractice.fxml'.";


		Person person1 = new Person("田中", "20歳", "男");


		nameColumn.setCellValueFactory(new PropertyValueFactory<>("name"));
		ageColumn.setCellValueFactory(new PropertyValueFactory<>("age"));
		sexColumn.setCellValueFactory(new PropertyValueFactory<>("sex"));


		tvObservableList.add(person1);
		table.setItems(tvObservableList);
	}
}

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.TableColumn?>
<?import javafx.scene.control.TableView?>
<?import javafx.scene.layout.AnchorPane?>


<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="application.TablePracticeController">
   <children>
      <TableView fx:id="table" layoutX="55.0" layoutY="44.0" prefHeight="312.0" prefWidth="491.0">
        <columns>
          <TableColumn fx:id="nameColumn" prefWidth="165.0" text="name" />
          <TableColumn fx:id="ageColumn" prefWidth="129.0" text="age" />
            <TableColumn fx:id="sexColumn" prefWidth="196.0" text="sex" />
        </columns>
      </TableView>
   </children>
</AnchorPane>

package application;

import javafx.beans.property.SimpleStringProperty;

public class Person {

	private SimpleStringProperty name;
	private SimpleStringProperty age;
	private SimpleStringProperty sex;

	public Person(String name, String age, String sex) {
		super();
		this.name = new SimpleStringProperty(name);
		this.age = new SimpleStringProperty(age);
		this.sex = new SimpleStringProperty(age);
	}
	public String getName() {
		return name.get();
	}
	public void setName(String name) {
		this.name.set(name);
	}
	public String getAge() {
		return age.get();
	}
	public void setAge(String age) {
		this.age.set(age);
	}
	public String getSex() {
		return sex.get();
	}
	public void setSex(String sex) {
		this.sex.set(sex);
	}



}