RFR: 8352489: Relax jspawnhelper version checks to informative

[Aleksey Shipilev]

On Thu, 20 Mar 2025 11:09:34 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> In any case, I don't think we should change main line as it currently targets JDK 25 so won't GA for 6 months. Maybe there is a case to re-examine in the update releases where the jspawnhelper checks were back ported but I think we should leave main line alone.

I have been thinking about this for the last several days, and I think we should be doing this relaxation consistently everywhere. Honestly, I don't expect the all distro issues to be fixed/deployed in the field before JDK 25 GA and 25.0.1, so if we do this relaxation specifically for update releases, we would have to re-do it for JDK 25u.

Doing this in mainline also keeps history a bit cleaner, but this is a minor benefit.

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PR Comment: https://git.openjdk.org/jdk/pull/24127#issuecomment-2740142700