RFR: 8378297: Remove AppContext from several Swing component and related classes [v4]

[Prasanta Sadhukhan]

On Wed, 25 Feb 2026 18:01:46 GMT, Phil Race <prr at openjdk.org> wrote:

>> Remove AppContext usage from several Swing classes that use it via  Swing utility (still used by other cases so can't remove that yet).
>> 
>> One ToolTipManager test for the AppContext is removed.
>
> Phil Race has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8378297

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/29830#pullrequestreview-3858239844