First try to build some component based solution.

injectfx-example/pom.xml

@@ -16,7 +16,7 @@
         <link.name>${project.artifactId}</link.name>
         <launcher>${project.artifactId}</launcher>
         <appName>${project.artifactId}</appName>
-        <main.class>de.neitzel.injectfx.example.Main</main.class>
+        <main.class>de.neitzel.neitzelfx.injectfx.example.Main</main.class>
         <jar.filename>${project.artifactId}-${project.version}</jar.filename>
     </properties>
 

injectfx-example/src/main/java/de/neitzel/neitzelfx/component/example/Address.java

@@ -0,0 +1,11 @@
+package de.neitzel.neitzelfx.component.example;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Address {
+    private String street;
+    private String city;
+}

injectfx-example/src/main/java/de/neitzel/neitzelfx/component/example/ExampleApp.java

@@ -0,0 +1,36 @@
+package de.neitzel.neitzelfx.component.example;
+
+import de.neitzel.neitzelfx.component.ComponentLoader;
+import javafx.application.Application;
+import javafx.scene.Parent;
+import javafx.scene.Scene;
+import javafx.stage.Stage;
+
+public class ExampleApp extends Application {
+
+    @Override
+    public void start(Stage primaryStage) throws Exception {
+        // Beispielmodel initialisieren
+        Address address = new Address();
+        address.setStreet("Sample Street 1");
+        address.setCity("Sample City");
+
+        Person person = new Person();
+        person.setName("Max Mustermann");
+        person.setAddress(address);
+
+        // ComponentLoader verwenden
+        ComponentLoader loader = new ComponentLoader();
+        Parent root = loader.load(person, "/person.fxml");
+
+        // Scene erstellen und anzeigen
+        Scene scene = new Scene(root);
+        primaryStage.setTitle("ComponentLoader Example");
+        primaryStage.setScene(scene);
+        primaryStage.show();
+    }
+
+    public static void main(String[] args) {
+        launch();
+    }
+}

injectfx-example/src/main/java/de/neitzel/neitzelfx/component/example/Main.java

@@ -0,0 +1,17 @@
+package de.neitzel.neitzelfx.component.example;
+
+import de.neitzel.neitzelfx.injectfx.example.JavaFXApp;
+
+/**
+ * Another Main class as workaround when the JavaFX Application ist started without
+ * taking care os Classloader Requirements of JavaFX. (Important when starting from inside NetBeans!)
+ */
+public class Main {
+    /**
+     * Additional main methode to start Application.
+     * @param args Commandline Arguments.
+     */
+    public static void main(String[] args) {
+        ExampleApp.main(args);
+    }
+}

injectfx-example/src/main/java/de/neitzel/neitzelfx/component/example/Person.java

@@ -0,0 +1,11 @@
+package de.neitzel.neitzelfx.component.example;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class Person {
+    private String name;
+    private Address address;
+}

injectfx-example/src/main/java/de/neitzel/neitzelfx/injectfx/example/JavaFXApp.java

@@ -1,4 +1,4 @@
-package de.neitzel.injectfx.example;
+package de.neitzel.neitzelfx.injectfx.example;
 
 import javafx.application.Application;
 import javafx.fxml.FXMLLoader;

injectfx-example/src/main/java/de/neitzel/neitzelfx/injectfx/example/Main.java

@@ -1,4 +1,4 @@
-package de.neitzel.injectfx.example;
+package de.neitzel.neitzelfx.injectfx.example;
 
 /**
  * Another Main class as workaround when the JavaFX Application ist started without

injectfx-example/src/main/java/de/neitzel/neitzelfx/injectfx/example/MainWindow.java

@@ -1,4 +1,4 @@
-package de.neitzel.injectfx.example;
+package de.neitzel.neitzelfx.injectfx.example;
 
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;

injectfx-example/src/main/resources/address.fxml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.control.*?>
+
+<AnchorPane xmlns="http://javafx.com/javafx"
+            xmlns:fx="http://javafx.com/fxml"
+            xmlns:nfx="http://example.com/nfx"
+            fx:controller="de.neitzel.neitzelfx.component.ComponentController"
+            prefWidth="300" prefHeight="100">
+    <children>
+        <TextField layoutX="10" layoutY="10" prefWidth="280"
+                   nfx:target="street" nfx:direction="bidirectional"/>
+        <TextField layoutX="10" layoutY="50" prefWidth="280"
+                   nfx:target="city" nfx:direction="bidirectional"/>
+    </children>
+</AnchorPane>

injectfx-example/src/main/resources/de/neitzel/neitzelfx/injectfx/example/MainWindow.fxml

@@ -3,7 +3,7 @@
 <?import javafx.scene.control.*?>
 <?import javafx.scene.layout.*?>
 
-<AnchorPane prefHeight="127.0" prefWidth="209.0" xmlns="http://javafx.com/javafx/17.0.2-ea" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.neitzel.injectfx.example.MainWindow">
+<AnchorPane prefHeight="127.0" prefWidth="209.0" xmlns="http://javafx.com/javafx/17.0.2-ea" xmlns:fx="http://javafx.com/fxml/1" fx:controller="de.neitzel.neitzelfx.injectfx.example.MainWindow">
    <children>
       <Button fx:id="button" layoutX="44.0" layoutY="70.0" mnemonicParsing="false" onAction="#onButtonClick" text="Click Me" />
       <TextField fx:id="textField" layoutX="14.0" layoutY="24.0" />

injectfx-example/src/main/resources/person.fxml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.control.*?>
+
+<AnchorPane xmlns="http://javafx.com/javafx"
+            xmlns:fx="http://javafx.com/fxml"
+            xmlns:nfx="http://example.com/nfx"
+            fx:controller="de.neitzel.neitzelfx.component.ComponentController"
+            prefWidth="300" prefHeight="180">
+    <children>
+        <TextField layoutX="10" layoutY="10" prefWidth="280"
+                   nfx:target="name" nfx:direction="bidirectional"/>
+        <Pane layoutX="10" layoutY="50" prefWidth="280" prefHeight="110"
+              nfx:target="address" nfx:direction="bidirectional"
+              nfx:source="/address.fxml"/>
+    </children>
+</AnchorPane>