RFR: 8357917: Assert in MetaspaceShared::preload_and_dump() when printing exception

[Ioi Lam]

On Tue, 27 May 2025 22:09:23 GMT, John R Rose <jrose at openjdk.org> wrote:

>> Please review this trivial patch for printing exceptions that happened during AOT cache dumping.
>> 
>> We observed the crash when running tests with [JEP 514](https://openjdk.org/jeps/514), but the root cause is pre-existing.
>
> I filed https://bugs.openjdk.org/browse/JDK-8357921 to follow up later.

Thanks @rose00 @vnkozlov for the review

-------------

PR Comment: https://git.openjdk.org/jdk/pull/25473#issuecomment-2914714044