On Tue, 30 Jun 2026 22:53:42 GMT, Serguei Spitsyn <[email protected]> wrote:

> This update is for Valhalla pre-integration. It introduces new JVMTI 
> capability `can_support_value_objects`.
> The variable `_can_support_value_objects_count` is introduced for 
> optimization. It follows the pattern of the `can_support_virtual_threads` 
> capability.
> 
> Additionally, this update includes test fixes:
>  - test/hotspot/jtreg/serviceability/jvmti/HeapMonitor/libHeapMonitorTest.cpp:
>    - Removed the `if (!jni->HasIdentity(object))` check  because it is not 
> needed anymore as the JVMTI capability `can_support_value_objects` is no 
> acquired by the test
>  
>  - These two tests are updated to provide both positive and negative coverage 
> for new capability:
>     test/hotspot/jtreg/serviceability/jvmti/valhalla/VMObjectAllocValue
>     test/hotspot/jtreg/serviceability/jvmti/valhalla/SampledObjectAllocValue
> 
> Testing:
> - Ran updated tests locally
> - Submitted mach5 tiers 1-6
> 
> ---------
> - [x] I confirm that I make this contribution in accordance with the [OpenJDK 
> Interim AI Policy](https://openjdk.org/legal/ai).

This pull request has now been integrated.

Changeset: 3a7e2e0d
Author:    Serguei Spitsyn <[email protected]>
URL:       
https://git.openjdk.org/valhalla/commit/3a7e2e0d6714a3302f32d261d9d43124f6c5afd3
Stats:     98 lines in 10 files changed: 72 ins; 6 del; 20 mod

8387552: [lworld] Add new capability to enable value objects support for JVMTI 
VMObjectAlloc and SampledObjectAlloc

Reviewed-by: lmesnik, cjplummer

-------------

PR: https://git.openjdk.org/valhalla/pull/2607

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