RFR (S): [TESTBUG] Test for JDK-8180048

[Erik Österlund]

Hi Thomas,

Looks good.
Note though that...

   82         Asserts.assertLT(reserved, ReservedThreshold, "Reserved 
memory size is " + reserved + "KB which is higher than " + 
ReservedThreshold + "KB indicating a memory leak");

...I guess it should say "greater than or equal to" instead of "higher 
than", but I'm not sure if I really care all that much.

Also, the copyright years might need some tweaking.

I don't need another webrev.

Thanks,
/Erik

On 2017-11-27 13:52, Thomas Schatzl wrote:
> Hi all,
>
>    can I have some reviews that adds a test for JDK-8180048? That test
> has not been completed in time for JDK 9, but I think it is good to
> have it in JDK 10.
>
> It tries to detect the races fixed in JDK-8180048 by parsing NMT output
> before/after symbol unloading. To be sure that we exercise the buggy
> code path, the test takes some time (~30s) to stress symbol unloading.
>
> To avoid this test clogging up valuable time in lower testing tiers,
> the test has been put into the "stress" test directory so that it only
> executes at higher test tiers. Further I limited it to execute only
> with a release build.
>
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8180280
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8180280/webrev
> Testing:
> test case passing
>
> Thanks,
>    Thomas