RFR: jsr166 jdk9 integration wave 12

[Martin Buchholz]

On Thu, Nov 17, 2016 at 12:03 PM, Paul Sandoz <Paul.Sandoz at oracle.com>
wrote:

>
> ForkJoin
> —
>
>   69  * tasks that are never joined. All worker threads are initialized
>   70  * with {@link Thread#isDaemon} set {@code true}.
>
> CCC?
>

JDK 7 had
"""Because ForkJoinPool uses threads in daemon mode, there is typically no
need to explicitly shutdown such a pool upon program exit."""

https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ForkJoinPool.html

but that was inadvertently dropped.