[crac] RFR: 8368570: [CRaC] Improve JdwpTransportTest [v5]

[Roman Marchenko]

On Mon, 29 Sep 2025 13:57:16 GMT, Roman Marchenko <rmarchenko at openjdk.org> wrote:

>> JdwpTransportTest sometimes hangs, so it'd be good to dump Java threads, and create a corefile if possible.
>> 
>> Also improved reading from output stream.
>
> Roman Marchenko has updated the pull request incrementally with one additional commit since the last revision:
> 
>   fix review comment

Files as JDK-8369035

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PR Comment: https://git.openjdk.org/crac/pull/265#issuecomment-3359494744