hg: lambda/lambda/jdk: - ConcurrentLinkedDeque.trySplit throws NPE for empty collection.

[paul.sandoz at oracle.com]

Changeset: b383ff65a209
Author:    psandoz
Date:      2013-03-13 14:19 +0100
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/b383ff65a209

- ConcurrentLinkedDeque.trySplit throws NPE for empty collection.
- LinkedBlockingQueue.tryAdvance never terminates.
Contributed-by: Doug Lea <dl at cs.oswego.edu>

! src/share/classes/java/util/concurrent/ConcurrentLinkedDeque.java
! src/share/classes/java/util/concurrent/LinkedBlockingQueue.java