RFR [9] 8140687: Move @Contended to the jdk.internal.vm.annotation package

[Vitaly Davidovich]

+1000

sent from my phone
On Nov 9, 2015 7:49 AM, "Doug Lea" <dl at cs.oswego.edu> wrote:

> On 11/09/2015 05:43 AM, Chris Hegarty wrote:
>
>> On 02/11/15 10:45, Aleksey Shipilev wrote:
>>
>>> On 11/02/2015 02:56 AM, Chris Hegarty wrote:
>>>
>>>> In line with the intended location for other VM annotations,
>>>> see 8138732 [1], @sun.misc.Contended should be moved
>>>> to the jdk.internal.vm.annotation package.
>>>>
>>>> http://cr.openjdk.java.net/~chegar/8140687/00/
>>>>
>>>
>>>
> While this is up for review, could someone please explain
> again why @Contended should not be a public annotation?
> Without it, non-JDK concurrent data structures still have
> to use the kinds of non-portable paddings that led us to
> introduce the annotation. See for example JCTools
>   https://github.com/JCTools/JCTools
> and Disruptor
>   http://lmax-exchange.github.io/disruptor/
>
> -Doug
>
>
>