8362573: Incorrect weight of the first ObjectAllocationSample JFR event (regression)

[mgronlun]

Greetings,

Fix to ensure that the ObjectAllocationSample event sample weight property is initialized correctly when the event is enabled.

The previous clearing logic has been integrated into the existing thread iteration as part of the notify process, to avoid double passes. In addition, clearing and the event only apply to the set of JavaThreads.

This time also includes a regression test.

Testing: jdk_jfr

Thanks
Markus

---

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Issue

• JDK-8362573: Incorrect weight of the first ObjectAllocationSample JFR event (regression) (Bug - P4)

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