my programs gives me
Exception in thread “JavaFX Application Thread” java.lang.UnsatisfiedLinkError , i try everthing in the java fx documentation but it still dont work, i put the entire exeption below so you can see it, if anybody could help me i would be nice, thank you.

package sonic;

import javafx.application.Application;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.layout.StackPane;
import javafx.scene.text.Text;
import javafx.stage.Stage;

/**
 *
 * @author nightdragon
 */
public class Sonic extends Application{
    
     private Parent createContent() {
        return new StackPane(new Text("Hello World"));
        
    }
    
    @Override
    public void start(Stage stage) throws Exception {
         //stage.setScene(new Scene(createContent(),300,300));
        //stage.show();
    }
    

  
    public static void main(String[] args) {
        launch(args);
        // TODO code application logic here
        
    }


}

Exception in thread "JavaFX Application Thread" java.lang.UnsatisfiedLinkError: 'java.util.Map com.sun.glass.ui.gtk.GtkApplication.getPlatformPreferences()'
    at [email protected]/com.sun.glass.ui.gtk.GtkApplication.getPlatformPreferences(Native Method)
    at [email protected]/com.sun.javafx.tk.quantum.QuantumToolkit.runToolkit(QuantumToolkit.java:366)
    at [email protected]/com.sun.javafx.tk.quantum.QuantumToolkit.lambda$startup$10(QuantumToolkit.java:290)
    at [email protected]/com.sun.glass.ui.Application.lambda$run$1(Application.java:154)
    at [email protected]/com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
    at [email protected]/com.sun.glass.ui.gtk.GtkApplication.lambda$runLoop$10(GtkApplication.java:264)
    at java.base/java.lang.Thread.run(Thread.java:1583)

i dont know what to do ,or how can i solve this, i am using netbeans in his 21 version and linux ubuntu, somebody has a similar and a way that i can solve it?