RFR: 4466930: JTable.selectAll boundary handling [v4]

[Prasanta Sadhukhan]

On Wed, 19 Mar 2025 08:52:34 GMT, Tejesh R <tr at openjdk.org> wrote:

>> In SwingSet2 JTable demo before the fix also, you can see only "rowSelection" is enabled, but selectAll selects all cells in the table so selectAll overrides that setting..
>
> Ok.

Added columnSelection check..SwingSet2 selectAll selection can be viewed as selecting all rows which can be perceived as selecting all cells, so to be safe added the check..

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PR Review Comment: https://git.openjdk.org/jdk/pull/24025#discussion_r2003371971