RFR: 7904083: Print fatal error messages to stderr

[Jaikiran Pai]

On Tue, 23 Sep 2025 06:52:38 GMT, SendaoYan <syan at openjdk.org> wrote:

> Hi all,
> 
> Currently the fatal error message was print to stderr, shows as below. I think it's bettor to print the fatal error message to stderr.
> 
> The `>&2` usage for echo both works on linux and cygwin. I do not have other OS system to verify this change, but I think the risk of this change is low.

Hello @sendaoYan, can you add some more details about what prompted this change? I can understand that printing an error to stderr would seem more logical. However, given that it has been this way forever, if there is no strong reason for changing this, then I think it would be better to leave this as-is.

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PR Comment: https://git.openjdk.org/jtreg/pull/290#issuecomment-3337975063