RFR: JDK-6690019: JOptionPane obscured behind an always on top JFrame hangs UI

[Tejesh R]

On Thu, 5 Oct 2023 16:43:17 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> A JOptionPane message dialog owned by a JFrame which is not always on top can be obscured behind an `"always on top" JFrame`. Since the option pane is modal, one can't move the "always on top frame" to reveal it, so the application effectively hangs as we cannot dismiss the option pane dialog
> Fix is to make sure the option pane dialog is always on top....

The fix is working fine with the test mentioned in JBS. Any reason for not adding a test for the fix?

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PR Review: https://git.openjdk.org/jdk/pull/16060#pullrequestreview-1663780562