RFR (XXS): 8132334: [TESTBUG] gc/metaspace/TestCapacityUntilGCWrapAround.java Compilation failed

[Dmitry Fazunenko]

On 28.07.2015 4:40, Kim Barrett wrote:
> On Jul 27, 2015, at 9:12 PM, Dmitry Fazunenko <dmitry.fazunenko at oracle.com> wrote:
>> On 27.07.2015 21:49, Kim Barrett wrote:
>>> On Jul 24, 2015, at 12:23 PM, Dmitry Fazunenko <dmitry.fazunenko at oracle.com> wrote:
>>>> Hi everyone,
>>>>
>>>> Can I have reviews for the trivial change that must fix the compilation problem?
>>>> https://bugs.openjdk.java.net/browse/JDK-8132334
>>>>
>>>> webrev:
>>>> http://cr.openjdk.java.net/~dfazunen/8132334/webrev/
>>>>
>>>> Comments: In some circumstances jtreg doesn't see wb classes if they weren't built explicitly.
>>> Under what circumstances does this occur?  I see other tests that look very similar to the pre-change version of this test - what makes this test so special?
>>>
>> I don't have an answer. I just heard about such problem, but I didn't find the bug. Might be because it's not filed yet. The hypothesis is the concurrency might cause such effect.
> Without an understanding of why this change is needed here but not
> elsewhere, I'm concerned that we're either
>
> 1. papering over one instance of a more widespread problem, or
> 2. not really solving the problem with this test after all.
>
I found the jtreg bug: 
https://bugs.openjdk.java.net/browse/CODETOOLS-7900024
It's about 3 years old and still un-triaged, so I won't expect it will 
be fixed soon.
But the problem could be easily worked around and this change does it.

Thanks,
Dima