RFR: 8349620: Add VMProps for static JDK

[Jiangli Zhou]

On Mon, 10 Feb 2025 08:21:21 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Please review this change that adds the `jdk.static` VMProps. It can be used to skip tests not for running on static JDK.
>> 
>> This also adds a new WhiteBox native method, `jdk.test.whitebox.WhiteBox.isStatic()`, which is used by VMProps to determine if it's static at runtime. 
>> 
>> `@requires !jdk.static` is added in `test/hotspot/jtreg/runtime/modules/ModulesSymLink.java` to skip running the test on static JDK. This test uses `bin/jlink`, which is not provided on static JDK. There are other tests that require tools in `bin/`. Those are not modified by the current PR to skip running on static JDK. Those can be done after the current change is fully discussed and reviewed/approved.
>
> I think this looks okay, I'm just wondering is one property is enough to cover all the configurations.

Thanks, @AlanBateman.

> I'm just wondering is one property is enough to cover all the configurations.

+1

It's not easy to predict all different cases for now. How about adding/refining when we find any new cases? I'm also wondering if we would want to merge the `isStatic` into `isHermetic` check in the future.

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PR Comment: https://git.openjdk.org/jdk/pull/23528#issuecomment-2649588820