RFR: 8315369: [JVMCI] failure to attach to a libgraal isolate during shutdown should not be fatal [v2]

[Doug Simon]

On Mon, 4 Sep 2023 08:43:45 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>> This PR moves handling of errors in some JVMCIEnv constructors to the caller. This avoids VM crashes in contexts where errors are recoverable, such as the problem of running out of file descriptors described in the JBS issue for this PR.
>
> Doug Simon has updated the pull request incrementally with one additional commit since the last revision:
> 
>   convert assert to guarantee

Thanks for the reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/15542#issuecomment-1705000452