> On Jun 15, 2018, at 8:44 AM, Brent Christian <brent.christ...@oracle.com>
> wrote:
>
> Hi,
>
> In JDK 9, 8029891[1] refactored java.util.Properties to store its values in
> an internal ConcurrentHashMap, and removed synchronization from "reader"
> methods in order to avoid potential hangs/deadlocks during classloading.
>
> Claes has noticed that there is the possibility of the new 'map' field being
> observed with its default value (null), before being set.
>
Yes.
I would also publish the map in readHashtable after you have placed in the
keys/values.
Pail.
> After looking at the JSR 133 FAQ[2], I agree with Claes that we should make
> 'map' a field final.
>
> Please review my change to do this:
>
> Webrev:
> http://cr.openjdk.java.net/~bchristi/8199435/webrev/
> Issue:
> https://bugs.openjdk.java.net/browse/JDK-8199435
>
> Thanks,
> -Brent
>
> 1. https://bugs.openjdk.java.net/browse/JDK-8029891
> 2. https://www.cs.umd.edu/~pugh/java/memoryModel/jsr-133-faq.html#finalRight
