diff options
Diffstat (limited to 'java/lang/ref/Reference.java')
| -rw-r--r-- | java/lang/ref/Reference.java | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/java/lang/ref/Reference.java b/java/lang/ref/Reference.java index 8a7501863..ce224b891 100644 --- a/java/lang/ref/Reference.java +++ b/java/lang/ref/Reference.java @@ -1,5 +1,5 @@ /* java.lang.ref.Reference - Copyright (C) 1999, 2002, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1999, 2002, 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -82,7 +82,7 @@ public abstract class Reference<T> * The queue this reference is registered on. This is null, if this * wasn't registered to any queue or reference was already enqueued. */ - ReferenceQueue<? super T> queue; + volatile ReferenceQueue<? super T> queue; /** * Link to the next entry on the queue. If this is null, this @@ -91,7 +91,7 @@ public abstract class Reference<T> * (not to null, that value is used to mark a not enqueued * reference). */ - Reference nextOnQueue; + volatile Reference nextOnQueue; /** * This lock should be taken by the garbage collector, before @@ -166,11 +166,10 @@ public abstract class Reference<T> */ public boolean enqueue() { - if (queue != null && nextOnQueue == null) + ReferenceQueue q = queue; + if (q != null) { - queue.enqueue(this); - queue = null; - return true; + return q.enqueue(this); } return false; } |