RFR: JDK-8222930: ConcurrentSkipListMapTest.clone() broken since jdk10

[Stuart Marks]

Hi Adam,

Thanks for finding this bug!

This is a bug in ConcurrentSkipListMap itself, not some test named 
ConcurrentSkipListMapTest. I'd suggest changing the bug summary line and the 
commit message accordingly.

Thanks,

s'marks

On 4/24/19 9:20 AM, Adam Farley8 wrote:
> ConcurrentSkipListMapTest.clone() produces a clone that shares the array
> size variable of the original, and then doubles it.
> 
> So both arrays, original and clone, tell the user that each is twice as
> big as it actually is.
> 
> The proposed fix is to simply set the clone's array size variable to null
> during creation.
> 
> Fix and test code available.
> 
> Reviews and sponsor requested.
> 
> Webrev: http://cr.openjdk.java.net/~afarley/8222930.0/jdk13/webrev/
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8222930
> 
> Best Regards
> 
> Adam Farley
> IBM Runtimes
> 
> P.S. Apparently this has been broken since JDK 10, so we should look at
> backporting (at least to 11 and 12) once this is in.
> 
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