--- jsr166/src/test/tck/TreeSetTest.java	2013/04/02 22:18:26	1.28
+++ jsr166/src/test/tck/TreeSetTest.java	2013/05/30 03:28:55	1.29
@@ -536,7 +536,7 @@ public class TreeSetTest extends JSR166T
         NavigableSet x = populatedSet(SIZE);
         NavigableSet y = serialClone(x);
 
-        assertTrue(x != y);
+        assertNotSame(x, y);
         assertEquals(x.size(), y.size());
         assertEquals(x, y);
         assertEquals(y, x);