RFR: 8260869: Test java/foreign/TestHandshake.java fails intermittently [v2]

[Paul Sandoz]

On Mon, 1 Mar 2021 19:30:00 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

>> This simple fix reduces the amount of concurrency on the foreign memory TestHandshake test. As this test spins a new accessor thread for each available processors, on machines which feature an high number of available processors (because of multi-threading), and which are slower in forking new threads (e.g. Windows), the test can sometimes timeout.
>> 
>> The sensible step, for now, is to introduce an hard limit on the number of concurrent accessor threads being created. I've looked at the test logs quite in depth, and there's nothing suggesting that something else is amiss - the number of concurrent threads just seem to be too high in some instances.
>
> Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address review comments

Marked as reviewed by psandoz (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/2748