[foreign-memaccess+abi] RFR: Make TestHandshake more tolerant to spurious failures [v2]

[Chris Hegarty]

On Fri, 23 Apr 2021 14:34:06 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> Especially on Windows, we seem to have issues when it comes to spurious failures with these tests. This test require completion within 10 seconds, and sometimes on Windows it is possible to see (from logs) that no thread starts before 8.5 seconds (!!). This seems to be a transient issue, most likely caused by some environment factor in our test machines.
>> 
>> I have added some logic to print out which test starts first, and when.
>> 
>> I have also raised the threshold factor 2x.
>
> Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix debugging statements

Marked as reviewed by chegar (Committer).

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PR: https://git.openjdk.java.net/panama-foreign/pull/517