--- jsr166/src/test/tck/TreeMapTest.java	2011/11/26 05:42:14	1.23
+++ jsr166/src/test/tck/TreeMapTest.java	2014/12/31 19:05:43	1.28
@@ -4,8 +4,20 @@
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
-import junit.framework.*;
-import java.util.*;
+import java.util.Arrays;
+import java.util.BitSet;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.NavigableMap;
+import java.util.NavigableSet;
+import java.util.NoSuchElementException;
+import java.util.Random;
+import java.util.Set;
+import java.util.TreeMap;
+
+import junit.framework.Test;
+import junit.framework.TestSuite;
 
 public class TreeMapTest extends JSR166TestCase {
     public static void main(String[] args) {
@@ -16,7 +28,7 @@ public class TreeMapTest extends JSR166T
     }
 
     /**
-     * Create a map from Integers 1-5 to Strings "A"-"E".
+     * Returns a new map from Integers 1-5 to Strings "A"-"E".
      */
     private static TreeMap map5() {
         TreeMap map = new TreeMap();
@@ -41,7 +53,7 @@ public class TreeMapTest extends JSR166T
     }
 
     /**
-     *
+     * copy constructor creates map equal to source map
      */
     public void testConstructFromSorted() {
         TreeMap map = map5();
@@ -600,7 +612,7 @@ 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);