RFR: 8295857: Clarify that cleanup code can be skipped when the JVM terminates (e.g. when calling halt()) [v4]

[Lance Andersen]

On Tue, 22 Nov 2022 00:50:51 GMT, Brent Christian <bchristi at openjdk.org> wrote:

>> [JDK-8290036](https://bugs.openjdk.org/browse/JDK-8290036) documented the shutdown sequence, noting that calling Runtime.halt() skips the shutdown sequence and immediately terminates the VM. Thus, "threads' current methods do not complete normally or abruptly; no finally clause of any method is executed".
>> 
>> One ramification of this is that resources within try-with-resource blocks will not be released. It would be good to state this explicitly.
>
> Brent Christian has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update Runtime class doc re: other unexpected behaviors

Marked as reviewed by lancea (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/11218