--- jsr166/src/test/tck/TreeMapTest.java	2010/10/11 05:40:41	1.17
+++ jsr166/src/test/tck/TreeMapTest.java	2011/05/27 19:10:32	1.20
@@ -1,7 +1,7 @@
 /*
  * Written by Doug Lea with assistance from members of JCP JSR-166
  * Expert Group and released to the public domain, as explained at
- * http://creativecommons.org/licenses/publicdomain
+ * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
 import junit.framework.*;
@@ -557,7 +557,7 @@ public class TreeMapTest extends JSR166T
         TreeMap map = map5();
         String s = map.toString();
         for (int i = 1; i <= 5; ++i) {
-            assertTrue(s.indexOf(String.valueOf(i)) >= 0);
+            assertTrue(s.contains(String.valueOf(i)));
         }
     }
 
@@ -961,7 +961,7 @@ public class TreeMapTest extends JSR166T
      */
     void check(NavigableMap<Integer, Integer> map,
                       final int min, final int max, final boolean ascending) {
-       class ReferenceSet {
+        class ReferenceSet {
             int lower(int key) {
                 return ascending ? lowerAscending(key) : higherAscending(key);
             }