RFR: jsr166 jdk9 integration wave 13

[Martin Buchholz]

We were supposed to be winding down jdk9, and there are a lot of changes
here, but ... it would be a shame not to have fast specialized
implementations for new collection methods added in Java 8.  There's also a
fix for a serious bug in LinkedBlockingQueue.

http://cr.openjdk.java.net/~martin/webrevs/openjdk9/jsr166-jdk9-integration/

As with wave 12, very collection oriented.