RFR of JDK-8157543,java/nio/channels/Selector/SelectAndCancel.java fails intermittently

[Alan Bateman]

On 23/04/2018 09:45, Hamlin Li wrote:
> would you please review the following patch?
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8157543
>
> webrev: http://cr.openjdk.java.net/~mli/8157543/webrev.00/
There isn't much information in the bug report. The test should execute 
in a shade over 6s but it seems jtreg is trying to kill it after 128s, 
thus interrupting the sleep at L82. In addition, there seems to be 
another failure mode where the first thread hasn't got to the point of 
configuring the listener channel to non-blocking before it is closed by 
the second thread, started 3 seconds later. I assume this means that the 
test system is completely overloaded at the time, maybe there is a 
really long GC or maybe other agent VMs are hogging all the resources. 
Assuming I have this tight then I think your changes look okay as sleep 
is always too brittle to reply on in tests. The only issue is first 
thread now throws RuntimeException and isn't clear if this will be shown 
in the output if it happens (the original 1.4 era bug report was that 
select was throw IOException).

-Alan