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

Doug Lea dl at cs.oswego.edu
Mon Nov 9 12:49:31 UTC 2015

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
and Disruptor


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