On Tue, 22 Jun 2021 01:59:17 GMT, David Holmes <dhol...@openjdk.org> wrote:
>> Guoxiong Li has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> Fix incorrect use of the method cast
>
> Hi Guoxiong,
>
> Thanks for picking up this enhancement request.
>
> I wasn't sure if this would be worth the churn/disruption to the source code,
> but I think it is ok and preferable to use the cast notation.
>
> The changes look good except for one mistake flagged below.
>
> Note you need at least two reviewers before integrating this.
>
> Thanks,
> David
@dholmes-ora Thanks for your review. I updated the code just now.
I am surprised that the `tier1` (locally and the `Pre-submit tests`) can't find
the mistake you pointed out.
Maybe we can improve the `tier1` or the `Pre-submit tests` in the future.
> src/hotspot/share/gc/z/zFuture.inline.hpp line 49:
>
>> 47: // Wait for notification
>> 48: Thread* const thread = Thread::current();
>> 49: if (JavaThread::cast(thread)) {
>
> This is wrong - we still need the is_Java_thread() query; and cast is not a
> boolean operator.
Fixed. It's a wrong use of the method `cast`. Thanks for finding it. I re-read
my patch to avoid the similar mistake.
-------------
PR: https://git.openjdk.java.net/jdk/pull/4546
