On Wed, 2 Sep 2026 18:40:00 GMT, Chen Liang <[email protected]> wrote:
> The identity hash code of value objects currently can produce 0. A zero value > is usually not anticipated for System.identityHashCode calls unless the > argument is null; the 0 hash also cannot be cached. Thus, we should move away > from the 0 hash. > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai). Hello Chen, would it be possible to add a few more details either to the JBS description or this PR description about why the hashcode being 0 for some value objects isn't ideal? There's also a mention of caching in the issue description and code comments. Which cache is being referred to here? Would these same concerns apply to value classes that override the `hashCode()` method implementation? ------------- PR Comment: https://git.openjdk.org/jdk/pull/32660#issuecomment-5700812683
