RFR: JDK-8299672: Enhance HeapDump JFR event

Tue Jan 10 08:21:54 UTC 2023

On Thu, 5 Jan 2023 14:54:31 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Enhance the JFR Event HeapDump  with the additional interesting fields, compression and overwrite.
> Add some UL logging in case the heap dump writing failed .

The support for gzipped heap dumps was added recently with "8237354: Add option to jcmd to write a gzipped heap dump" but not reflected in JFR so I wanted to add it here too to get a full picture of the heap dump creation.
The overwrite field was just added  for completion, no specific reason.

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PR: https://git.openjdk.org/jdk/pull/11864