RFR: 8372441: JFR: Improve logging of TestBackToBackSensitive

[Markus Grönlund]

On Mon, 24 Nov 2025 21:20:32 GMT, Erik Gahlin <egahlin at openjdk.org> wrote:

> Could I get a review of a PR that saves the dump file if a test fails? It also changes the order in which events are printed to make it easier to see in the log when chunk rotations happen.
> 
> Testing: 1000 * jdk/jdk/jfr/event/runtom/TestBackToBackSensitive
> 
> Thanks
> Erik

Marked as reviewed by mgronlun (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28481#pullrequestreview-3504020339