RFR: 4346610: Adding JSeparator to JToolBar "pushes" buttons added after separator to edge [v4]

[Alexey Ivanov]

On Mon, 7 Aug 2023 09:31:43 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Adding buttons in a JToolBar after a JSeparator will push the button to the far right of the frame instead of just after the separator
>> 
>> ![image](https://github.com/openjdk/jdk/assets/43534309/7fcad657-493f-4370-b046-b31c212a8aa7)
>> 
>> This is because BasicSeparatorUI does not define a maximum size. This leads to the separator getting all the extra width.
>> Fix is made to limit the separator's maximum size to the preferred size of corresponding orientation (i.e. width for VERTICAL and height for HORIZONTAL)
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Test fix

Marked as reviewed by aivanov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/15054#pullrequestreview-1565410269