On Fri, 25 Aug 2023 17:53:51 GMT, Damon Nguyen <dngu...@openjdk.org> wrote:

> Previously, a new key combination involving the option key was added to Aqua 
> LAF for JTextAreas. In doing so, some code was removed that created this 
> regression. The regression caused the right option key on Mac OS to 
> incorrectly show another KeyPressed event instead of a KeyReleased event when 
> pressing and releasing the key. Additionally, the location of the key was 
> 'standard' instead of 'right'. Adding back the key mask and its following 
> code resolves the issue and doesn't cause any other CI tests to fail.
> 
> The headful test included displays the key events as they're pressed. After 
> the changes, the test correctly shows the right option key's KeyPressed and 
> KeyReleased events and shows the location as 'right'.

I guess it was removed in as part of JDK-8267374 fix. Please see 
[PR#9230](https://github.com/openjdk/jdk/pull/9230) where it was concluded that 
we dont need ALT_GRAPH mapping for macos and RightOption key was mapped to 
ALT_GRAPH which makes Option key not work
https://github.com/openjdk/jdk/pull/9230#issuecomment-1165315655
https://github.com/openjdk/jdk/pull/9230#discussion_r906279285

Please run the regression test added/modified to see it does not regress those, 
mainly
test/jdk/javax/swing/JTextArea/TestAltUpDown.java

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PR Comment: https://git.openjdk.org/jdk/pull/15432#issuecomment-1695031519

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