RFR: 8352567: [s390x] disable JFR tests requiring JFR stubs

[Vladimir Petko]

On Fri, 21 Nov 2025 01:48:27 GMT, Vladimir Petko <vpetko at openjdk.org> wrote:

> JFR stubs are not [implemented](https://github.com/openjdk/jdk/blame/06ba6cf3a137a6cdf572a876a46d18e51c248451/src/hotspot/cpu/s390/sharedRuntime_s390.cpp#L3412). 
> Add platform requirement to JFR tests that require JFR stubs to skip them on S390x.
> 
> Testing: 
> - s390x:
> 
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR  SKIP   
>    jtreg:test/hotspot/jtreg/applications/ctw/modules/jdk_jfr.java
>                                                          0     0     0     0     0   
>    jtreg:test/hotspot/jtreg/compiler/intrinsics/TestReturnOopSetForJFRWriteCheckpoint.java
>                                                          0     0     0     0     0   
>    jtreg:test/jdk/jdk/jfr                              630   577     0     0    53   
> ==============================
> TEST SUCCESS
> 
> 
> - amd64:
> 
> ==============================
> Test summary
> ==============================
>    TEST                                              TOTAL  PASS  FAIL ERROR  SKIP   
>    jtreg:test/hotspot/jtreg/applications/ctw/modules/jdk_jfr.java
>                                                          1     1     0     0     0   
>    jtreg:test/hotspot/jtreg/compiler/intrinsics/TestReturnOopSetForJFRWriteCheckpoint.java
>                                                          1     1     0     0     0   
>    jtreg:test/jdk/jdk/jfr                              629   622     0     0     7   
> ==============================
> TEST SUCCESS

@offamitkumar Hi, would it be possible to take a look? =)

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PR Comment: https://git.openjdk.org/jdk/pull/28444#issuecomment-3568269502