java.lang.UnsupportedOperationException: Not supported yet

[Flynn]

Hi there!

I have following problem.
When I create a Frame with a Button using JavaFX, then I get the Error-Message "java.lang.UnsupportedOperationException: Not supported yet", after I pressed the Button.

My Code:

try
{
            Button btn = new Button();
            btn.setText("Say 'Hello World'");
            btn.setOnAction(new EventHandler<ActionEvent>()
            {
                @Override
                public void handle(ActionEvent event)
                {
                    throw new UnsupportedOperationException("Not supported yet.");
                }
            });
            StackPane root = new StackPane();
            root.getChildren().add(btn);
            primaryStage.setScene(new Scene(root, 300, 250));
            primaryStage.show();
 }
 catch (Exception ex)
 {
        objFF.writeMsgExc("Exc: " + ex.getMessage(), ex, Boolean.TRUE);
 }

Does anyone have an idea ?

Thanks - Flynn

 

[httpdigest]

public void handle(ActionEvent event)
{
throw new UnsupportedOperationException("Not supported yet.");
}

What's your actual question? If anyone has an idea... about what?

I mean, SERIOUSLY, this is like asking:
When I execute the following main method, I get an output that says "IT DOES NOT WORK!":

public static void main(String[] args) {
  System.err.println("IT DOES NOT WORK!");
}

Does anyone have an idea ?

 

[Flynn]

sorry...
I got this Error-StackTrace when I pressed the Button in my Frame created with JavaFX:

Exception in thread "com.infodim.FlynnFunc" java.lang.UnsupportedOperationException: Not supported yet.
    at com.infodim.Flynnfx$1.handle(Flynnfx.java:133)
    at com.infodim.Flynnfx$1.handle(Flynnfx.java:129)
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:49)
    at javafx.event.Event.fireEvent(Event.java:198)
    at javafx.scene.Node.fireEvent(Node.java:8411)
    at javafx.scene.control.Button.fire(Button.java:185)
    at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:182)
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:96)
    at com.sun.javafx.scene.control.skin.BehaviorSkinBase$1.handle(BehaviorSkinBase.java:89)
    at com.sun.javafx.event.CompositeEventHandler$NormalEventHandlerRecord.handleBubblingEvent(CompositeEventHandler.java:218)
    at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:80)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:238)
    at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:191)
    at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:59)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:58)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:56)
    at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:114)
    at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:74)
    at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:54)
    at javafx.event.Event.fireEvent(Event.java:198)
    at javafx.scene.Scene$MouseHandler.process(Scene.java:3757)
    at javafx.scene.Scene$MouseHandler.access$1500(Scene.java:3485)
    at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1762)
    at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2494)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:394)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler$MouseEventNotification.run(GlassViewEventHandler.java:295)
    at java.security.AccessController.doPrivileged(Native Method)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.lambda$handleMouseEvent$353(GlassViewEventHandler.java:432)
    at com.sun.javafx.tk.quantum.QuantumToolkit.runWithoutRenderLock(QuantumToolkit.java:389)
    at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:431)
    at com.sun.glass.ui.View.handleMouseEvent(View.java:555)
    at com.sun.glass.ui.View.notifyMouse(View.java:937)
    at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
    at java.lang.Thread.run(Thread.java:748)

 

[httpdigest]

So what? You are OBVIOUSLY throwing an exception. What do you expect you would get? Look at the line where it LITERALLY says throw new UnsupportedOperationException("Not supported yet.");

 

[Flynn]

Alright my friend ... do not be rude... OK ???

 

[Flown]

Next time please use code tags to embrace your stacktraces or code like [code=java]//JAVA CODE HERE[/code]

You should take a closer look to your EventHandler#handle method where you throwing an UnsupportedOperationException by yourself.
This is what httpdigest told you twice.

The solution to this problem is providing a proper implementation of the handle method. E.g. print a log statement to the console.

 

[httpdigest]

Maybe your actual question is the following: Why is the exception not being caught by the try-catch block surrounding the code. And the answer is simple: The click action handler will be executed asynchronously by the JavaFX event loop when you click the button. So the method where you put all that code into has long exited when the button click handler executes.

 

[Flynn]

thank you !!!