Codereview request for 6898310: (cs) Charset cache lookups should be synchronized

[Alan Bateman]

Xueming Shen wrote:
> Hi,
>
> This is a forward porting. Same fix has been in jdk5/6, and will be in 
> jdk 7u2 later.
>
> http://cr.openjdk.java.net/~sherman/6898310/webrev
>
> The change itself is relative simple. And given its race-condition 
> nature, no reliable
> regression test case is provided.
This looks okay to me.

-Alan.