RFR: 8362846: Windows error reporting for dll_load doesn't check for a null buffer

[David Holmes]

On Tue, 22 Jul 2025 14:36:48 GMT, Markus Grönlund <mgronlun at openjdk.org> wrote:

>> Please review this simple fix for some missing null checks in `os::dll_load`. The primary issue handles Windows, while the additional is for Linux/BSD.
>> 
>> Testing:
>> - new gtest
>> - tiers 1-3
>> 
>> Thanks
>
> Seems to be broader than just Windows?

Thanks for the reviews @mgronlun and @kimbarrett !

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PR Comment: https://git.openjdk.org/jdk/pull/26420#issuecomment-3105244854