RFR: 8357828: Add a timestamp to jcmd diagnostic commands

[Alan Bateman]

On Wed, 24 Sep 2025 09:09:22 GMT, Ivan Bereziuk <duke at openjdk.org> wrote:

> Do you think we would need a CSR for this kind of change?

The output from several commands have changed over many releases/years, the output from Thread.dump in particular. AFAIK, none of these changes has a CSR, there were only CSRs when new commands were added. That said, if there is some evidence that the output is being parsed then there is a compatibility concern so creating a CSR and RN would prudent.

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PR Comment: https://git.openjdk.org/jdk/pull/27368#issuecomment-3332451741