--- jsr166/src/test/tck/TreeSetTest.java	2011/04/14 22:55:08	1.21
+++ jsr166/src/test/tck/TreeSetTest.java	2011/05/27 19:10:32	1.22
@@ -521,7 +521,7 @@ public class TreeSetTest extends JSR166T
         TreeSet q = populatedSet(SIZE);
         String s = q.toString();
         for (int i = 0; i < SIZE; ++i) {
-            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
+            assertTrue(s.contains(String.valueOf(i)));
         }
     }