JDK 9 RFR of JDK-8161567: Mark java/util/concurrent/forkjoin/FJExceptionTableLeak.java as intermittently failing

[Martin Buchholz]

Like I always say, I'm unhappy with the increased memory requirements.
Java programs that used to run in 4m now need more than 8m.  Hotspot should
be fixed!

If this is dependent on the particular GC, maybe there's a way to require
not having that gc.

I see:

./java/lang/management/MemoryMXBean/LowMemoryTest2.sh:28:# @requires
vm.gc=="null"
./java/lang/management/MemoryMXBean/PendingAllGC.sh:29:# @requires
vm.gc=="null"
./java/lang/management/MemoryMXBean/MemoryManagementConcMarkSweepGC.sh:29:#
@requires vm.gc=="ConcMarkSweep" | vm.gc=="null"
./java/lang/management/MemoryMXBean/MemoryTestAllGC.sh:29:# @requires
vm.gc=="Parallel" | vm.gc=="null"
./java/lang/management/MemoryMXBean/MemoryManagementParallelGC.sh:29:#
@requires vm.gc=="Parallel" | vm.gc=="null"
./java/lang/management/MemoryMXBean/MemoryManagementSerialGC.sh:29:#
@requires vm.gc=="Serial" | vm.gc=="null"

Maybe we can make this test pass in a similar way.

Bug reports should be clearer about which VM flags actually cause the
failure.


On Sun, Jul 17, 2016 at 11:46 PM, Amy Lu <amy.lu at oracle.com> wrote:

> java/util/concurrent/forkjoin/FJExceptionTableLeak.java
>
> Test was ever fixed in JDK-8144990, but still failing intermittently as
> reported in JDK-8151158.
>
> This patch is to add back @key intermittent to the test. (and keep it in
> tier2 till issue resolved.)
> Please review.
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8161567
> webrev: http://cr.openjdk.java.net/~amlu/8161567/webrev.00/
>
> Thanks,
> Amy
>
> --- old/test/java/util/concurrent/forkjoin/FJExceptionTableLeak.java
> 2016-07-18 14:37:25.000000000 +0800
> +++ new/test/java/util/concurrent/forkjoin/FJExceptionTableLeak.java
> 2016-07-18 14:37:25.000000000 +0800
> @@ -35,6 +35,7 @@
>   * @test
>   * @author Doug Lea
>   * @bug 8004138
> + * @key intermittent
>   * @summary Check if ForkJoinPool table leaks thrown exceptions.
>   * @run main/othervm -Xmx8m
> -Djava.util.concurrent.ForkJoinPool.common.parallelism=4
> FJExceptionTableLeak
>   */
>
>
>