RFR: 8266369: (se) Add wepoll based Selector [v4]

[Alan Bateman]

On Wed, 5 May 2021 15:25:55 GMT, Chris Hegarty <chegar at openjdk.org> wrote:

>> Alan Bateman has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Remove unused WEPoll.getDescriptor. Update micro to close listener
>
> src/java.base/windows/classes/sun/nio/ch/WEPoll.java line 78:
> 
>> 76:     static long allocatePollArray(int count) {
>> 77:         return UNSAFE.allocateMemory(count * SIZEOF_EPOLLEVENT);
>> 78:     }
> 
> I expected to see the memory cleared here, e.g.:
> 
>     long base = UNSAFE.allocateMemory(count * SIZEOF_EPOLLEVENT);
>     UNSAFE.setMemory(base, count * SIZEOF_EPOLLEVENT, (byte) 0);
>     return base;

Okay, will do, although isn't really needed here.

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PR: https://git.openjdk.java.net/jdk/pull/3816