RFR: 8364927: Add @requires annotation to TestReclaimStringsLeaksMemory.java

[jonghoonpark]

On Wed, 13 Aug 2025 19:11:25 GMT, jonghoonpark <duke at openjdk.org> wrote:

> This change updates `TestReclaimStringsLeaksMemory.java` to properly guard against unsupported GC arguments.
> Previously, the test only checked `@requires vm.gc == "null"`.
> 
> The fix separates the tests and adds explicit `@requires` clauses for each GC configuration to ensure the test only runs when supported.
> 
> This prevents test failures on VMs that do not support the specified GC.
> 
> (This is my first contribution to the JDK. Thank you for your review and guidance.)

<img width="847" height="627" alt="image" src="https://github.com/user-attachments/assets/55657b4a-6c56-4798-ad17-caeafc619019" />

I previously signed the OCA and have already contributed to Graal.

However, the GitHub Actions checks are not passing.
Is there anything else I need to do?

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PR Comment: https://git.openjdk.org/jdk/pull/26766#issuecomment-3185242360