FYI - fix for JDK-8062849 -- Optimize EnumMap.equals

[Steve Drach]

Well this is strange.  The attachments seem to have been discarded by some part of the mail system.  I will provide them to anyone who requests them.  Sorry for that.

> On Jul 27, 2015, at 9:38 AM, Steve Drach <steve.drach at oracle.com> wrote:
> 
> Hi,
> 
> I’ve fixed the issue reported in https://bugs.openjdk.java.net/browse/JDK-8062849 <https://bugs.openjdk.java.net/browse/JDK-8062849>.  It’s been reviewed by Brent Christian and Paul Sandoz.  Both the changeset and webrev.zip are attached.
> 
> Steve
>