RFR: 8272579: G1: remove unnecesary null check for G1ParScanThreadStateSet::_states slots [v2]

[Albert Mingkun Yang]

On Wed, 18 Aug 2021 15:56:48 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple change of replacing a null-check with an assertion.
>> 
>> Test: hotspot_gc
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Thanks for the review.

-------------

PR: https://git.openjdk.java.net/jdk/pull/5145