RFR: 8267582: BasicLookAndFeel should not call getComponentPopupMenu twice to get a popup menu [v3]

[SWinxy]

On Wed, 18 Jan 2023 15:21:34 GMT, SWinxy <duke at openjdk.org> wrote:

>> Please review this small change to cache a component's popup menu in BLAF.
>
> SWinxy has updated the pull request incrementally with one additional commit since the last revision:
> 
>   order imports

@TheShermanTanker you might be needed here!

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PR: https://git.openjdk.org/jdk/pull/12017