RFR: 8315317: Add test for JDK-8262518 [v2]

[Prasanta Sadhukhan]

On Fri, 1 Sep 2023 14:31:49 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Better failure detection
>
> tests/system/src/test/java/test/javafx/embed/swing/SwingNodeContentMemoryLeakTest.java line 116:
> 
>> 114:                 System.out.println("iteration " + count + " Panels in memory: "
>> 115:                                                + panelCount + " fail " + fail);
>> 116:                 assertFalse(fail > 2);
> 
> I actually seen the  number to shoot up to 38 (albeit with Thread.sleep(1)).  I wonder if there is a better way to detect failure?  May be the fact that the 'panelCount` is ever increasing is the sign of failure, whereas if at least one time it's dropping we have succeeded.
> Or perhaps look at the count when the test complete and fail if panelCount < (attempts / 2) or something

Any more comments on this test fix after updation @andy-goryachev-oracle ?

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PR Review Comment: https://git.openjdk.org/jfx/pull/1228#discussion_r1319403741