[jdk19] RFR: 8289302: Restore CriticalJNINatives

Wed Jun 29 14:05:54 UTC 2022

On Wed, 29 Jun 2022 12:10:35 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This change restores the code in the JVM that implemented the internal JavaCritical or CriticalJNINatives functionality.  Customers are using this feature and there's no replacement yet for it.
> This change is a backout and merge of jDK-8258192: Obsolete the CriticalJNINatives flag.
> This change also adds the deprecation message that was missed, which I checked is okay with the customer.
> 
> Tested with tiers1-4.

I assume it's because the user just wants to call clock_gettime(CLOCK_REALTIME) using the os API provided.

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

PR: https://git.openjdk.org/jdk19/pull/90