JavaFX 2.0 memory leak error while creating multiple scenes

Question

I created an example application that causes a memory leak.

The problem is that I need to “reload” the scene. If I have two scenes (Bar and Foo) with each button (ButtonBar and ButtonFoo), the buttons change the current scene, creating a new one. If I stay pressed ButtonBar and ButtonFoo for 5 minutes (or less), the memory consumption of this simple program gets higher and higher.

Bar.java

public class Bar implements Initializable {

@FXML
private Label label;

@FXML
private void toFoo(ActionEvent event) {
    try {
        Button button = (Button) event.getSource();
        Parent root = FXMLLoader.load(getClass().getResource("Foo.fxml"));
        Stage currentStage = (Stage) button.getScene().getWindow();
        currentStage.setScene(new Scene(root));
    } catch (IOException ex) {
        Logger.getLogger(Bar.class.getName()).log(Level.SEVERE, null, ex);
    }
}

@Override
public void initialize(URL url, ResourceBundle rb) {
    // TODO
}    
}

Foo.java is the same as changing fxml loading.

The fxml file contains only one button:

<Button id="buttonBar" layoutX="126" layoutY="90" text="Bar!" onAction="#toFoo" fx:id="buttonBar" />

Is there a real memory leak problem? Does anyone know another way to do this? I want this application to stay alive and constantly changing as a service. Thanks

Answer 1

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Answer 2

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Answer 3

FX8. .

JavaFX, onAction="#toFoo" FXML.

, : buttonBar.addEventHandler(MouseEvent.MOUSE_CLICKED, declaredEventHandler);.

: buttonBar.removeEventHandler(declaredEventHandler);