Review request for JDK-8146274: Thread spinning on WeakHashMap.getEntry() with concurrent use of nashorn

[Attila Szegedi]

+1. I presume you considered it and decided that copying the weak maps is better than sharing WeakPropertyMapSet objects and making their methods synchronized.

> On Jan 15, 2016, at 12:49 PM, Hannes Wallnoefer <hannes.wallnoefer at oracle.com> wrote:
> 
> Please review:
> 
> Webrev: http://cr.openjdk.java.net/~hannesw/8146274/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8146274
> 
> I was not able to reproduce the issue although I tried my best to follow the instructions. However, it is pretty clear that the issue is that the cause for the concurrent modification exception is the sharing of  WeakPropertyMapSets between PropertyMapListeners.
> 
> Thanks,
> Hannes