[jdk17u-dev] RFR: 8309956: Shenandoah: Strengthen the mark word check in string dedup

[Aleksey Shipilev]

On Thu, 15 Jun 2023 09:54:01 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport to improve Shenandoah reliability.
> 
> Additional testing:
>  - [x] macos-aarch64-server-fastdebug, `hotspot_gc_shenandoah`

Testing is clean. Push approval is here.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1443#issuecomment-1599358924