RFR: 8337782: Use THROW_NULL instead of THROW_0 in pointer contexts in prims code

[Kim Barrett]

On Mon, 5 Aug 2024 14:43:58 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Please review this trivial change that, in places in prims code where a
>> pointer value is required, replaces uses of THROW_0 and THROW_MSG_0 with
>> THROW_NULL and THROW_MSG_NULL respectively.
>> 
>> Testing: mach5 tier1
>
> Current changes look okay. I have not checked these caught all the instances of `THROW_MSG_0` in those files, did you check that somehow?

Thanks for reviews @shipilev and @dholmes-ora

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PR Comment: https://git.openjdk.org/jdk/pull/20456#issuecomment-2270399408