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

[Mark Sheppard]

On Thu, 17 Apr 2025 14:40:56 GMT, Ivan Šipka <isipka at openjdk.org> wrote:

>> Remove default OS platform linux x86_64, remove @ignores allowing amd64 as a viable OS platform selection
>
> Ivan Šipka has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - removing accidentally added files, reverting to two test cases bu removing @ignores directive and adding test ids
>  - copyright update

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

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PR Review Comment: https://git.openjdk.org/jdk/pull/24416#discussion_r2049132553