--- jsr166/src/test/tck/LinkedTransferQueueTest.java	2011/11/26 05:42:14	1.51
+++ jsr166/src/test/tck/LinkedTransferQueueTest.java	2014/11/23 22:27:06	1.53
@@ -625,7 +625,7 @@ public class LinkedTransferQueueTest ext
         Queue x = populatedQueue(SIZE);
         Queue y = serialClone(x);
 
-        assertTrue(x != y);
+        assertNotSame(y, x);
         assertEquals(x.size(), y.size());
         assertEquals(x.toString(), y.toString());
         assertTrue(Arrays.equals(x.toArray(), y.toArray()));
@@ -1013,4 +1013,19 @@ public class LinkedTransferQueueTest ext
         assertFalse(q.isEmpty());
         return q;
     }
+
+    /**
+     * remove(null), contains(null) always return false
+     */
+    public void testNeverContainsNull() {
+        Collection<?>[] qs = {
+            new LinkedTransferQueue<Object>(),
+            populatedQueue(2),
+        };
+
+        for (Collection<?> q : qs) {
+            assertFalse(q.contains(null));
+            assertFalse(q.remove(null));
+        }
+    }
 }