RFR: 8310829: guarantee(!HAS_PENDING_EXCEPTION) failed in ExceptionTranslation::doit [v3]

[Doug Simon]

On Mon, 26 Jun 2023 13:17:25 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>> The VMSupport class is required for translating an exception between the HotSpot and libgraal heaps.
>> Loading it lazily can result in a loading exception, obscuring the exception being translated.
>> To avoid this, VMSupport is loaded eagerly along with the other vmClasses.
>
> Doug Simon has updated the pull request incrementally with one additional commit since the last revision:
> 
>   each exception translation failure should trigger a JVMCI event

I've pushed the loading of `VMSupport` down into the 2 cases where it's actually needed and made it lazy again which should address all concerns about extra noise at VM startup. Thanks for the push back on this - I agree that it's the best solution.

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PR Comment: https://git.openjdk.org/jdk/pull/14641#issuecomment-1610243648