About two my issues

[PavelTurk]

About JDK-8371781. I understood the problem. The window seems to be created but it is not visible. I recorded a GIF that clearly shows the issue (it is about 15 seconds long, watch until the label text changes) - https://ibb.co/n8Y42bNy

I hope, it will help.

Test code:

public class Test1 extends Application {

     private final Label label = new Label("Miracles don’t happen.");

     @Override
     public void start(Stage stage) {
         MenuItem item = new MenuItem("Click me!");
         item.setOnAction(e -> {
             label.setText("It’s a miracle!");
         });
         Menu menu = new Menu("Menu");
         menu.getItems().add(item);
         MenuBar bar = new MenuBar(menu);

         var stackPane = new StackPane(label);
         VBox.setVgrow(stackPane, Priority.ALWAYS);
         label.setStyle("-fx-font-size: 30");
         VBox root = new VBox(bar, stackPane);

         Scene scene = new Scene(root, 400, 400);
         stage.setScene(scene);
         stage.setTitle("JDK-8371781");
         stage.show();
     }

     public static void main(String[] args) {
         launch();
     }
}

Best regards, Pavel

On 11/18/25 18:21, Kevin Rushforth wrote:
> Regarding the second issue, JDK-8372108, I will add your additional information as a comment and reopen the bug.
>
> Regarding the first issue, I see the following, which I presume is the one you filed?
>
> JDK-8371781: Popup for ComboBox, Menu, and Tooltip is not shown sometimes in JavaFX
>
> I don't know why you didn't receive notification when it was processed and transferred to the JDK project in JBS. I see that it was closed as not reproducible. Do you have additional information that would help reproduce it?
>
> -- Kevin
>
>
> On 11/18/2025 8:06 AM, PavelTurk wrote:
>> Hello everyone,
>>
>> On November 10, I opened an issue (using the new redesigned form), and the system showed me the ID 23c3711c-36b1-4b94-a0d3-25bbdcf1b95f. The issue was about the fact that PopupWindow is not always shown on Linux systems, and I described how to reproduce the bug using a Tooltip. However, I still haven’t received any information about my issue.
>>
>> On November 16, I opened another issue (using the old form) about a memory leak in Tab that is related to GRAPHIC. Today I received a message that the issue is JDK-8372108. However, my issue was immediately closed with a note saying that it is a duplicate of JDK-8283449. But it is NOT a duplicate. JDK-8283449 is related to a problem in ContextMenu. I know this issue and I use the following workaround:
>>
>> contextMenu.getProperties().put(KEY, new WeakReference<Tab>(tab));
>>
>> MenuItem close = new MenuItem(..);
>> close.setOnAction((e) -> {
>>       var t = getTab(contextMenu); // from properties
>> });
>>
>> The issue I reported is related to |graphic|. So I believe that there are TWO separate problems with tabs that lead to memory leaks.
>>
>> Best regards, Pavel
>>
>>
>
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