Reviewed-by: dholmes, chegar, mduigou

Reviewed-by: chegar, dholmes

Reviewed-by: darcy, weijun

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

Summary: Make firstReader a Thread, not a long
Reviewed-by: martin

Summary: Introduce PROPAGATE waitStatus
Reviewed-by: martin

Summary: Read fields in reverse initialization order
Reviewed-by: martin

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