RFR: 8351851: Update PmemTest to run on AMD64 [v2]

[Mark Sheppard]

On Thu, 17 Apr 2025 15:04:05 GMT, Ivan Šipka <isipka at openjdk.org> wrote:

>> test/jdk/java/nio/MappedByteBuffer/PmemTest.java line 87:
>> 
>>> 85:  */
>>> 86: 
>>> 87: /* @test id=other_architectures_test_case
>> 
>> we should to leave the @ignores for the 2nd test case 
>> the test will be run on amd64 environmenst , as such the addition of  | (os.arch == "amd64") to the first test case  is fine
>
> so just to confirm: we explitcitly want to ignore this test on `linux-aarch64` and `linux-ppc64le` regardless of is the required hardware present or not?

yes, retain the @ignore in the second test case.
The original aim of this issue is to change the default test case of os.arch == "x86_64" to os.arch == "amd64" as the test will by default be run in an amd64 environment.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24416#discussion_r2049180807