--- a/jdk/src/share/classes/java/util/TreeSet.java	Sat Dec 18 09:10:49 2010 -0800
+++ b/jdk/src/share/classes/java/util/TreeSet.java	Mon Dec 20 13:47:04 2010 -0800
@@ -138,7 +138,7 @@
      *        ordering} of the elements will be used.
      */
     public TreeSet(Comparator<? super E> comparator) {
-        this(new TreeMap<E,Object>(comparator));
+        this(new TreeMap<>(comparator));
     }
 
     /**
@@ -195,7 +195,7 @@
      * @since 1.6
      */
     public NavigableSet<E> descendingSet() {
-        return new TreeSet<E>(m.descendingMap());
+        return new TreeSet<>(m.descendingMap());
     }
 
     /**
@@ -322,7 +322,7 @@
      */
     public NavigableSet<E> subSet(E fromElement, boolean fromInclusive,
                                   E toElement,   boolean toInclusive) {
-        return new TreeSet<E>(m.subMap(fromElement, fromInclusive,
+        return new TreeSet<>(m.subMap(fromElement, fromInclusive,
                                        toElement,   toInclusive));
     }
 
@@ -335,7 +335,7 @@
      * @since 1.6
      */
     public NavigableSet<E> headSet(E toElement, boolean inclusive) {
-        return new TreeSet<E>(m.headMap(toElement, inclusive));
+        return new TreeSet<>(m.headMap(toElement, inclusive));
     }
 
     /**
@@ -347,7 +347,7 @@
      * @since 1.6
      */
     public NavigableSet<E> tailSet(E fromElement, boolean inclusive) {
-        return new TreeSet<E>(m.tailMap(fromElement, inclusive));
+        return new TreeSet<>(m.tailMap(fromElement, inclusive));
     }
 
     /**
@@ -477,7 +477,7 @@
             throw new InternalError();
         }
 
-        clone.m = new TreeMap<E,Object>(m);
+        clone.m = new TreeMap<>(m);
         return clone;
     }
 
@@ -524,9 +524,9 @@
         // Create backing TreeMap
         TreeMap<E,Object> tm;
         if (c==null)
-            tm = new TreeMap<E,Object>();
+            tm = new TreeMap<>();
         else
-            tm = new TreeMap<E,Object>(c);
+            tm = new TreeMap<>(c);
         m = tm;
 
         // Read in size