Cursor bug on the borders of the frame if the mouse button is pressed.

[SPV-code]

Hello.

FlatLaf - 3.6.1
OS - linux
JFrame.setDefaultLookAndFeelDecorated(true)

Problem:
If you hold down the mouse button on any interface element (for example, a button), and without releasing it, move the cursor to the border of the frame, the cursor will change (for example, N_RESIZE_CURSOR).
If you continue to move the cursor outside or inside the frame, the cursor will remain N_RESIZE_CURSOR ...

For an example, see the attached video: https://github.com/user-attachments/assets/5eab19b4-1bd1-45c5-8faa-58490c915274

I solved this problem like this:

mainFrame.rootPane.border  = null
val rpBorderColor  = UIManager. getColor("RootPane.activeBorderColor") 
mainFrame.rootPane.apply {
    if (UIManager.getLookAndFeel().name != "Metal") if (JFrame.isDefaultLookAndFeelDecorated()){
    (components[1] as JComponent).border = createMatteBorder(1, 1, 0, 1, rpBorderColor)
    (components[2] as JComponent).border = createMatteBorder(0, 1, 1, 1, rpBorderColor)
    (components[3] as JComponent).border = createMatteBorder(0, 1, 0, 0, rpBorderColor)
    (components[4] as JComponent).border = createMatteBorder(0, 0, 0, 1, rpBorderColor)
}

But it's not a pretty solution.
Is it possible to fix this problem in the FlatLaf library?

[DevCharly]

If you hold down the mouse button on any interface element (for example, a button), and without releasing it, move the cursor to the border of the frame, the cursor will change (for example, N_RESIZE_CURSOR).

I've tried this. It is not only necessary to move the mouse to the border.
Must move the pressed mouse out of the window and then back into the window.
I wonder why a user should do that... 🤔

Is it possible to fix this problem in the FlatLaf library?

Not sure...

On Linux with enabled FlatLaf window decorations, FlatLaf places thin invisible components at the 4 borders that are used for window resizing. Those invisible components have different cursors and Swing decides what cursor to show at what mouse location.

Not sure whether its worth to spend some hours to fix this "problem"...

[SPV-code]

I respect your time and work. I will use my own solution. (the problem with com.formdev.flatlaf.ui.FlatWindowResizer$DragBorderComponent ) But for other users, this may cause a feeling of incompleteness of the product, because this behavior of the cursor catches the eye.
If you still don't want to waste time on this, then close this issue.