[security-dev 01022]: hg: jdk7/tl/jdk: 6805775: LinkedBlockingQueue Nodes should unlink themselves before becoming garbage; ...

[martinrb at google.com]

Changeset: 49573ab3096a
Author:    dl
Date:      2009-07-28 17:17 -0700
URL:       http://hg.openjdk.java.net/jdk7/tl/jdk/rev/49573ab3096a

6805775: LinkedBlockingQueue Nodes should unlink themselves before becoming garbage
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

! src/share/classes/java/util/concurrent/LinkedBlockingDeque.java
! src/share/classes/java/util/concurrent/LinkedBlockingQueue.java
! test/java/util/Collection/MOAT.java
+ test/java/util/concurrent/BlockingQueue/OfferDrainToLoops.java
+ test/java/util/concurrent/ConcurrentQueues/IteratorWeakConsistency.java