RFR: 8234071: JTable.AUTO_RESIZE_LAST_COLUMN acts like AUTO_RESIZE_ALL_COLUMNS [v3]

[Phil Race]

On Mon, 15 Jul 2024 09:57:22 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> When a JTable is resized with` JTable.setAutoResizeMode` set to ` AUTO_RESIZE_LAST_COLUMN` then it behaves exactly as if I specified `AUTO_RESIZE_ALL_COLUMNS`. 
>> This is because when `JTable.doLayout` tries to resize the columns, it checks which column to resize by calling `getResizingColumn `and in absence of any column info, it resizes all, so during `setAutoResizeMode` the resizing column needs to be set, which is being done for AUTO_RESIZE_LAST_COLUMN in this fix.
>> No regression test is provided as it can be easily checked with SwingSet2->JTable(demo)->Autoresize mode (set to "Last Column")
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Get columnCount only once

Marked as reviewed by prr (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/20107#pullrequestreview-2186484876