RFR: 8359923: Const accessors for the Deferred class

[Kim Barrett]

On Wed, 18 Jun 2025 13:28:43 GMT, Joel Sikström <jsikstro at openjdk.org> wrote:

> Hello,
> 
> This RFE adds const accessors to the `Deferred` class. We plan on using this in a future patch in ZGC. Thanks!
> 
> Testing:
>  * Currently running tier1-2
>  * Works in an WIP ZGC patch

I've asked that this change be backed out. I don't think this change should
have been made. I've proposed a better solution for the use-case that led to
making this change.

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PR Comment: https://git.openjdk.org/jdk/pull/25874#issuecomment-2992190779