RFR: 8351733: Crash when creating too many nested event loops [v3]

[Kevin Rushforth]

On Thu, 27 Mar 2025 22:19:29 GMT, Martin Fox <mfox at openjdk.org> wrote:

>> In any case, this PR should at least add the following bits of information to `Platform.enterNestedEventLoop()`:
>> 1. There is some limit to the number of nested event loops.
>> 2. Applications should always check `Platform.canStartNestedEventLoop()` before invoking `enterNestedEventLoop()`.
>> 3. An exception will be thrown if the limit is exceeded.
>
>> I think the suggestion made by @mstr2 to recommend calling `canStartNestedLoop` if the app wants to know whether or not this call will succeed is a good one.
> 
> The docs on `canStartNestedEventLoop` describe its behavior already. I'm not sure what further information would be useful. Would it be enough to add a see also link?

@beldenfox I also reviewed the CSR and it is ready to be Finalized.

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PR Comment: https://git.openjdk.org/jfx/pull/1741#issuecomment-2769026824