--- jsr166/src/test/tck/TreeMapTest.java	2013/01/02 07:41:07	1.26
+++ jsr166/src/test/tck/TreeMapTest.java	2013/05/30 03:28:55	1.27
@@ -600,7 +600,7 @@ public class TreeMapTest extends JSR166T
         NavigableMap x = map5();
         NavigableMap y = serialClone(x);
 
-        assertTrue(x != y);
+        assertNotSame(x, y);
         assertEquals(x.size(), y.size());
         assertEquals(x.toString(), y.toString());
         assertEquals(x, y);