RFR 6963841: java/util/concurrent/Phaser/Basic.java fails intermittently

Chris Hegarty chris.hegarty at oracle.com
Tue Mar 27 12:22:51 UTC 2012

On 27/03/2012 10:26, Alan Bateman wrote:
> On 27/03/2012 05:21, David Holmes wrote:
>> It's a little disconcerting that 10 seconds is not enough time, but we
>> have so many timing issues these days it is not that surprising. :(
> The machines in question are relatively beefy but there is hardware
> visualization in the picture that may be an issue.
> Chris - another thing that is worth checking is whether any previous
> tests are leaving looping threads. These tests are running sequentially
> in the same VM and we have had cases in the past where a test creates a
> daemon thread that heads off into the weeds, leading to slow down in
> subsequent tests. I tracked down a few of these last year and don't
> think we have any now but worth re-checking.

Thanks for the advise. I'll certainly see if I can find any offending 
rogue tests that may be looping. I'll also proceed with this change.


> In any case, the test change looks fine to me too.
> -Alan.

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