RFR: 8298823: [macos] java/awt/Mouse/EnterExitEvents/DragWindowTest.java continues to fail with "No MouseReleased event on label!" [v4]

[Alexey Ivanov]

On Fri, 26 Sep 2025 16:44:37 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

>> Test is currently problem-listed due to the test failing on both macOS arm and x64 machines. Updated the test to use `SwingUtilities.invokeAndWait` and use the EDT to dispose of the frame. Also needed to modify the delay for stability. Initially, I removed `setAutoDelay` since this has caused issues previously, but this caused a failure in linux (when previously linux has never failed). However, keeping the auto delay and adding additional small delays seems to be stable with all of the other changes to the test. The test passes in CI with multiple runs of 100 on all OS's with the proposed changes.
>
> Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Move listener. Add count reset.

Marked as reviewed by aivanov (Reviewer).

test/jdk/java/awt/Mouse/EnterExitEvents/DragWindowTest.java line 59:

> 57:     private static JLabel label;
> 58:     private static JButton button;
> 59:     private static JFrame frame;

Let's add some air into the declarations of the fields:


    private static volatile int dragWindowMouseEnteredCount = 0;
    private static volatile int buttonMouseEnteredCount = 0;
    private static volatile int labelMouseReleasedCount = 0;

    private static volatile Point pointToClick;
    private static volatile Point pointToDrag;

    private static MyDragWindow dragWindow;
    private static JLabel label;
    private static JButton button;
    private static JFrame frame;

Is it easier to skim quickly instead a wall of declarations?

test/jdk/java/awt/Mouse/EnterExitEvents/DragWindowTest.java line 81:

> 79:             robot.delay(250);
> 80: 
> 81:             if (dragWindowMouseEnteredCount != 1) {

Would it still work the mouse cursor happened to be located over the label? I think it should… Anyway, nothing's changed here, so it's unimportant.

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PR Review: https://git.openjdk.org/jdk/pull/27478#pullrequestreview-3295606421
PR Review Comment: https://git.openjdk.org/jdk/pull/27478#discussion_r2399780102
PR Review Comment: https://git.openjdk.org/jdk/pull/27478#discussion_r2399512173