ADDITIONAL SYSTEM INFORMATION :
Windows 10 Java 23.0.1 JavaFX 23

A DESCRIPTION OF THE PROBLEM :
A JVM crash happens when closing the application

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. I created a class extending javafx Stage with almost no code
    a. not modal
    b. when showned I call showAndWait
    c. no specific close button
2. I added it to an action menu item
3. I select the menu item multiple times
4. I close the Application
Results:
The stage does not show and JVM crashes systematically

ACTUAL -
JVM crash

---------- BEGIN SOURCE ----------
Here is the show function:

   private void showPerformanceView() {
      JFXPerformanceView perfViewDialog = new JFXPerformanceView(serverEngine);
      JFXGUITools guiTools = JFXGUITools.getInstance();
      perfViewDialog.createPanel(showPulseFPS, showProcessingTime, showUsedMemory, showBufferSize, guiTools.getTimerStep());
// perfViewDialog.initModality(Modality.WINDOW_MODAL);
      Stage stage = jfxWrapper.getServerFrame();
      perfViewDialog.initOwner(stage);
      perfViewDialog.setX(stage.getX());
      perfViewDialog.setY(stage.getY());
      perfViewDialog.showAndWait();
   }

Here is an extract of the JFXPerformanceView class:

public class JFXPerformanceView extends Stage {

    private final ServerEngine serverEngine;

    public JFXPerformanceView(ServerEngine serverEngine) {
        this.serverEngine = serverEngine;
    }

    public void createPanel(boolean showPulseFPS, boolean showProcessingTime, boolean showUsedMemory, boolean showBufferSize, int timerStep) {
        
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
none known

FREQUENCY : always