RFR: 8081007: Remove redundant active worker variables and calls in ParNewGeneration::collect

[Per Liden]

On 2015-05-25 15:29, Stefan Karlsson wrote:
> Hi all,
>
> Please review this small patch to unify how the number of active workers
> are passed around in ParNewGeneration::collect.
>
> http://cr.openjdk.java.net/~stefank/8081007/webrev.00/
> https://bugs.openjdk.java.net/browse/JDK-8081007

Looks good.

/Per

>
> - Removed the unnecessary n_workers variable.
> - Replaced workers()->active_workers() with active_workers.
> - Removed workers NULL check assert, since the exact same assert is
> performed earlier in the function.
>
> Thanks,
> StefanK