RFR: jsr166 jdk9 integration wave 5

[Martin Buchholz]

I added

8150523: improve jtreg test timeout handling, especially -timeout:

to this wave, inspired by smarks.
I stress tested this with the flags that caused JDK-8150523 to fail,
and they now seem robust, as long as a reasonable -timeout flag is
provided to jtreg.

On Tue, Feb 23, 2016 at 6:58 PM, Martin Buchholz <martinrb at google.com> wrote:
> A very boring jsr166 integration, focused on reliability.
> This one has the promised "even more unnecessarily robust" ThreadLocalRandom.
>
> http://cr.openjdk.java.net/~martin/webrevs/openjdk9/jsr166-jdk9-integration/