[crac] RFR: Close extraneous file descriptors

Thu Feb 16 09:27:08 UTC 2023

On Thu, 16 Feb 2023 07:36:43 GMT, Radim Vansa <duke at openjdk.org> wrote:

> Java code cannot use inherited non-standard file descriptors; these can cause trouble when trying to checkpoint the process via CRIU, and hence we will proactively close them on boot.

I've rebased on top of most recent crac branch but there are no comments.

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PR: https://git.openjdk.org/crac/pull/45