Obsoleting JavaCritical

[coleen.phillimore at oracle.com]

Hi,

I've filed https://bugs.openjdk.org/browse/JDK-8289302 to restore 
CriticalJNINatives until replacement intrinsics are found.

Thanks,
Coleen

On 6/7/22 1:31 PM, mark.reinhold at oracle.com wrote:
> 2022/6/6 0:24:17 -0700, wkudla.kernel at gmail.com:
>>> Yes for System.nanoTime(), but System.currentTimeMillis() reports
>>> CLOCK_REALTIME.
>> Unfortunately System.currentTimeMillis() offers only millisecond
>> granularity which is the reason why our industry has to resort to
>> clock_gettime.
> If the platform included, say, an intrinsified System.nanoRealTime()
> method that returned clock_gettime(CLOCK_REALTIME), how much would
> that help developers in your unnamed industry?
>
> In a similar vein, if people are finding it necessary to “replace parts
> of NIO with hand-crafted native code” then it would be interesting to
> understand what their requirements are.  Some simple enhancements to
> the NIO API would be much less costly to design and implement than a
> generalized user-level native-call intrinsification mechanism.
>
> - Mark