Reviewed-by: andrew, aph

Reviewed-by: dholmes, forax, alanb
Contributed-by: NDoug Lea <dl@cs.oswego.edu>

Reviewed-by: chegar

Summary: Unbounded queues should be disabled in the test
Reviewed-by: alanb

Reviewed-by: dholmes, chegar, mduigou

Reviewed-by: xdono

Reviewed-by: chegar, dholmes

Reviewed-by: darcy, weijun

6908348: java/util/concurrent/BlockingQueue/CancelledProducerConsumerLoops.java get OOME for unbounded queues
Reviewed-by: martin, dholmes

Reviewed-by: ohair

6865571: Add a lightweight task framework known as ForkJoin
6445158: Phaser - an improved CyclicBarrier
6865579: Add TransferQueue/LinkedTransferQueue
Reviewed-by: martin, chegar, dice

Summary: Fix all known flaky tests, plus minor maintenance
Reviewed-by: martin, chegar

6815766: LinkedBlockingQueue's iterator can return null if drainTo(c) executes concurrently
Summary: Faster, more correct. Use self-linking trick to avoid gc retention
Reviewed-by: martin, dholmes