[jdk25u] RFR: 8361363: ShenandoahAsserts::print_obj() does not work for forwarded objects and UseCompactObjectHeaders

[Vishal Chand]

On Fri, 21 Nov 2025 20:39:27 GMT, Vishal Chand <duke at openjdk.org> wrote:

> Backport of:
> * JDK-8361363 - ShenandoahAsserts::print_obj() does not work for forwarded objects and UseCompactObjectHeaders
>  * This change fixes Shenandoah’s print_obj() so it correctly prints forwarded objects when compact object headers are enabled, instead of crashing by reading an invalid klass from the forwarding pointer.
> 
> Risk is Low as this is a clean backport and the changes are in diagnostic code.

Closing in favour of https://github.com/openjdk/jdk25u-dev/pull/28

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PR Comment: https://git.openjdk.org/jdk25u/pull/384#issuecomment-3587644189