RFR (XS) 8153277: [TESTBUG] gc/arguments/TestMaxMinHeapFreeRatioFlags is too sensitive for stray allocations in verifyRatio

[Dmitry Fazunenko]

Hi Aleksey,

The change looks good.
Pls, fix the copyright before push.

Thanks,
Dima

On 01.04.2016 16:59, Aleksey Shipilev wrote:
> Hi,
>
> Please review a preemptive fix in TestMaxMinHeapFreeRatioFlags test.
> This failure only reproduces when you switch the JEP 280 concat strategy
> to something more advanced than it is now.
>
> The test would fail if we silently bring more objects in the heap in the
> middle of the test. Notably, this will happen inside of verifyRatio
> helper method which does a String concat -- on first invocation it will
> lazily initialize j.l.invoke infra. We need to prime the utility methods
> before using them within the test.
>
> Bug:
>    https://bugs.openjdk.java.net/browse/JDK-8153277
>
> Webrev:
>    http://cr.openjdk.java.net/~shade/8153277/webrev.00/
>
> Testing: offending test; going to run JPRT -testset hotspot during a push.
>
> Thanks,
> -Aleksey
>