[jdk21u-dev] RFR: 8371889: JFR: Deadlock in ThrowableTracer

[Erik Gahlin]

On Wed, 19 Nov 2025 13:58:35 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

> This change initializes the event configurations (known as event handlers in earlier JDKs) early, in order to avoid potential deadlocks (see [description in the issue](https://bugs.openjdk.org/browse/JDK-8371889)).
> 
> JDK 21 is the last JDK where this is relevant, that code has been completely reworked in JDK 22 (e.g. [JDK-8319374](https://bugs.openjdk.org/browse/JDK-8319374)).
> 
> Testing:
>  - [x] jdk/jfr
>  - [x] tier1

Marked as reviewed by egahlin (Committer).

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PR Review: https://git.openjdk.org/jdk21u-dev/pull/2483#pullrequestreview-3487808374