RFR: 8279614: The left line of the TitledBorder is not painted on 150 scale factor [v25]

[Phil Race]

On Wed, 8 Jun 2022 22:41:55 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   removed rendering hints, changed condition to reapply old transform
>
> src/java.desktop/share/classes/javax/swing/border/EtchedBorder.java line 158:
> 
>> 156:         AffineTransform at = new AffineTransform();
>> 157:         Stroke oldStk = new BasicStroke();
>> 158:         int stkWidth = 1;
> 
> Now the usage of these variables is restricted to the case where `resetTransform` is set to `true`. Therefore, they can be left uninitialised here; a value is assigned before it's used in all the code paths as far as I can see.
> 
> It's just a small (premature) optimisation, it avoids creating two objects. I don't insist though.

I'd be inclined to remove the initialisation.

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PR: https://git.openjdk.org/jdk/pull/7449