RFR: 4850101: Setting mnemonic to VK_F4 underlines the letter S in a button. [v2]

[Prasanta Sadhukhan]

On Thu, 4 Aug 2022 20:54:05 GMT, Phil Race <prr at openjdk.org> wrote:

>> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Modify check for lowercase character
>
> Sounds reasonable to me although I'm not an expert on mnemonic handling.

@prrace The code is changed since last approved..Do you have any objection?

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PR: https://git.openjdk.org/jdk/pull/9712