RFR: 8352489: Relax jspawnhelper version checks to informative

[Alan Bateman]

On Thu, 20 Mar 2025 10:53:49 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> I used to think the same, but with every new report we are seeing, I think we need to re-evaluate. From the bug: "To emphasize, this is not a bugfix, as version checks still a valid thing to do. This is merely a pragmatic concession to match the inconvenient, but hopefully only temporary broken state of the world." We can turn these version checks back to strong/fatal once the world catches up.

I don't know what this "unattended upgrade" product is but I hope there is a high priority bug to stop it overwriting a JDK in use.

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.

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PR Comment: https://git.openjdk.org/jdk/pull/24127#issuecomment-2740008451