RFR: 8153334: Replace BufferedInputStreams use of AtomicReferenceFieldUpdater with Unsafe

[Alan Bateman]

On 03/04/2016 13:19, Claes Redestad wrote:
> Hi Remi,
>
> On 2016-04-03 13:57, Remi Forax wrote:
>> Hi Claes,
>> the patch is fine for me with the minor nitpick that the static final 
>> containing Unsafe should be called UNSAFE and not just U.
>
> sure, I copied the setup/naming convention from ConcurrentHashMap, but 
> UNSAFE does make it stand out better.
>
>>
>> do you know why BufferedInputStream is loaded in first place during 
>> the startup of the VM ?
>
> given the output of -Xlog:classload I think it's first used by 
> java.lang.System for what becomes System.in.
>
Yes, initPhase1 (or what used to be initializeSystemClass) will be the 
first usage.

I skimmed the webrev, looks okay to me. I think I would import 
jdk.internal.misc.Unsafe rather than using the fully qualified class 
name twice. That will also avoid the line break.

-Alan