[crac] RFR: Close files opened by Decoder before checkpoint [v2]

[Anton Kozlov]

On Mon, 2 Oct 2023 18:59:40 GMT, Radim Vansa <rvansa at openjdk.org> wrote:

>> Native memory tracking needs to resolve some addresses for stack unwinding and the decoders keep some shared library files open as a cache. Since the decoder instances can be re-allocated anytime this fix just destroys them before a checkpoint.
>
> Radim Vansa has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Assume error handler decoder is null during checkpoint

Marked as reviewed by akozlov (Lead).

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PR Review: https://git.openjdk.org/crac/pull/116#pullrequestreview-1700426220