On Wed, 1 Feb 2023 15:13:41 GMT, Matthew Donovan <d...@openjdk.org> wrote:
>> Mark Powers has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Sean's comment
>
> test/jdk/java/security/MessageDigest/TestCloneable.java line 95:
>
>> 93:
>> 94: System.out.println(": Shared data check");
>> 95: if (!Arrays.equals(d1.digest(), d2.digest())) {
>
> If d1 and d2 don't share memory and each thread processes random bytes, how
> can the digests be equal?
@mpdonova I believe it is because Random is producing the same sequence of
bytes for each thread, and thus each MessageDigest should be equal. When the
memory is shared, they inevitably overwrite each other's tempArray and you get
different results.
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PR: https://git.openjdk.org/jdk/pull/12348
