diff -r c5fbc05d7347 -r f01ef94a63e7 jdk/test/java/util/Collection/MOAT.java
--- a/jdk/test/java/util/Collection/MOAT.java	Sat Sep 18 06:09:48 2010 -0400
+++ b/jdk/test/java/util/Collection/MOAT.java	Mon Sep 20 18:05:09 2010 -0700
@@ -75,6 +75,7 @@
         testCollection(new ArrayBlockingQueue<Integer>(20));
         testCollection(new LinkedBlockingQueue<Integer>(20));
         testCollection(new LinkedBlockingDeque<Integer>(20));
+        testCollection(new ConcurrentLinkedDeque<Integer>());
         testCollection(new ConcurrentLinkedQueue<Integer>());
         testCollection(new LinkedTransferQueue<Integer>());
         testCollection(new ConcurrentSkipListSet<Integer>());
@@ -431,8 +432,9 @@
         q.poll();
         equal(q.size(), 4);
         checkFunctionalInvariants(q);
-        if ((q instanceof LinkedBlockingQueue) ||
-            (q instanceof LinkedBlockingDeque) ||
+        if ((q instanceof LinkedBlockingQueue)   ||
+            (q instanceof LinkedBlockingDeque)   ||
+            (q instanceof ConcurrentLinkedDeque) ||
             (q instanceof ConcurrentLinkedQueue)) {
             testQueueIteratorRemove(q);
         }