JDK 13 RFR of JDK-8222378: Provide mechanism to query preview feature status for annotation processors

[Joe Darcy]

PS Updated test to cover the default method in

     http://cr.openjdk.java.net/~darcy/8222378.1

-Joe

On 4/12/2019 1:53 PM, Joe Darcy wrote:
> Hello,
>
> Please review the code changes and CSR to address:
>
>     JDK-8222378: Provide mechanism to query preview feature status for 
> annotation processors
>     webrev: http://cr.openjdk.java.net/~darcy/8222378.0/
>     CSR: https://bugs.openjdk.java.net/browse/JDK-8222424
>
> In brief, a isPreviewEnabled predicate default method is added to 
> ProcessingEnvironment to allow processors to query whether or not 
> preview features (JEP 12) are enabled.
>
> Thanks,
>
> -Joe
>