RFR: 8367348: Enhance PassFailJFrame to support links in HTML [v4]

[Alexey Ivanov]

On Wed, 10 Sep 2025 17:15:47 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Add HTML link processing ability in instructions. For example:
>> 
>> PassFailJFrame.builder()
>>         .instructions(htmlWithLinks)
>>         .addHyperlinkListener(e -> {
>>             if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
>>                 performActionOnLink(e.getDescription());
>>             }
>>         })
>> 
>> I also take this chance to make a CSS change for fix-width text to show a light-gray background color.
>
> Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   javadoc refine

Marked as reviewed by aivanov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/27197#pullrequestreview-3207127290