RFR: 8006421: GraphicsConfiguration of a frame is changed when the frame is moved to another screen [v6]

[Tejesh R]

On Fri, 16 Jun 2023 00:20:08 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

>> Tejesh R has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Updated based on review comments
>
> src/java.desktop/share/classes/java/awt/Window.java line 3223:
> 
>> 3221:                     getDefaultScreenDevice().
>> 3222:                     getDefaultConfiguration();
>> 3223:         }
> 
> It looks like `gc` was always not null before the fix, which is no longer true after the fix.
> We need to double check that we didn't break anything in this regard.

Yeah, have tested in CI multiple time and also few manual dual screen related test. No regression found with fix.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14246#discussion_r1231930086