--- a/jdk/src/share/classes/java/util/Collections.java	Tue Sep 11 19:58:36 2012 +0400
+++ b/jdk/src/share/classes/java/util/Collections.java	Fri Aug 31 13:42:47 2012 -0700
@@ -213,7 +213,7 @@
      * @throws IllegalArgumentException (optional) if the comparator is
      *         found to violate the {@link Comparator} contract
      */
-    @SuppressWarnings({ "unchecked", "rawtypes" })
+    @SuppressWarnings({"unchecked", "rawtypes"})
     public static <T> void sort(List<T> list, Comparator<? super T> c) {
         Object[] a = list.toArray();
         Arrays.sort(a, (Comparator)c);
@@ -418,7 +418,7 @@
      * @throws UnsupportedOperationException if the specified list or
      *         its list-iterator does not support the <tt>set</tt> operation.
      */
-    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @SuppressWarnings({"rawtypes", "unchecked"})
     public static void reverse(List<?> list) {
         int size = list.size();
         if (size < REVERSE_THRESHOLD || list instanceof RandomAccess) {
@@ -497,7 +497,7 @@
      * @throws UnsupportedOperationException if the specified list or its
      *         list-iterator does not support the <tt>set</tt> operation.
      */
-    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @SuppressWarnings({"rawtypes", "unchecked"})
     public static void shuffle(List<?> list, Random rnd) {
         int size = list.size();
         if (size < SHUFFLE_THRESHOLD || list instanceof RandomAccess) {
@@ -535,7 +535,7 @@
      *         || j &lt; 0 || j &gt;= list.size()).
      * @since 1.4
      */
-    @SuppressWarnings({ "rawtypes", "unchecked" })
+    @SuppressWarnings({"rawtypes", "unchecked"})
     public static void swap(List<?> list, int i, int j) {
         // instead of using a raw type here, it's possible to capture
         // the wildcard but it will require a call to a supplementary
@@ -669,7 +669,7 @@
      * @throws NoSuchElementException if the collection is empty.
      * @see Comparable
      */
-    @SuppressWarnings({ "unchecked", "rawtypes" })
+    @SuppressWarnings({"unchecked", "rawtypes"})
     public static <T> T min(Collection<? extends T> coll, Comparator<? super T> comp) {
         if (comp==null)
             return (T)min((Collection) coll);
@@ -740,7 +740,7 @@
      * @throws NoSuchElementException if the collection is empty.
      * @see Comparable
      */
-    @SuppressWarnings({ "unchecked", "rawtypes" })
+    @SuppressWarnings({"unchecked", "rawtypes"})
     public static <T> T max(Collection<? extends T> coll, Comparator<? super T> comp) {
         if (comp==null)
             return (T)max((Collection) coll);
@@ -1403,7 +1403,7 @@
             extends UnmodifiableSet<Map.Entry<K,V>> {
             private static final long serialVersionUID = 7854390611657943733L;
 
-            @SuppressWarnings({ "unchecked", "rawtypes" })
+            @SuppressWarnings({"unchecked", "rawtypes"})
             UnmodifiableEntrySet(Set<? extends Map.Entry<? extends K, ? extends V>> s) {
                 // Need to cast to raw in order to work around a limitation in the type system
                 super((Set)s);
@@ -3172,7 +3172,7 @@
      *
      * @see #emptySet()
      */
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     public static final Set EMPTY_SET = new EmptySet<>();
 
     /**
@@ -3271,10 +3271,13 @@
             return new EmptySortedSet<>();
         }
 
-        public Comparator comparator() {
+        @Override
+        public Comparator<? super E> comparator() {
             return null;
         }
 
+        @Override
+        @SuppressWarnings("unchecked")
         public SortedSet<E> subSet(Object fromElement, Object toElement) {
             Objects.requireNonNull(fromElement);
             Objects.requireNonNull(toElement);
@@ -3294,6 +3297,7 @@
             return emptySortedSet();
         }
 
+        @Override
         public SortedSet<E> headSet(Object toElement) {
             Objects.requireNonNull(toElement);
 
@@ -3304,6 +3308,7 @@
             return emptySortedSet();
         }
 
+        @Override
         public SortedSet<E> tailSet(Object fromElement) {
             Objects.requireNonNull(fromElement);
 
@@ -3314,10 +3319,12 @@
             return emptySortedSet();
         }
 
+        @Override
         public E first() {
             throw new NoSuchElementException();
         }
 
+        @Override
         public E last() {
             throw new NoSuchElementException();
         }
@@ -3328,7 +3335,7 @@
      *
      * @see #emptyList()
      */
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     public static final List EMPTY_LIST = new EmptyList<>();
 
     /**
@@ -3402,7 +3409,7 @@
      * @see #emptyMap()
      * @since 1.3
      */
-    @SuppressWarnings("unchecked")
+    @SuppressWarnings("rawtypes")
     public static final Map EMPTY_MAP = new EmptyMap<>();
 
     /**
@@ -3685,6 +3692,7 @@
             return a;
         }
 
+        @SuppressWarnings("unchecked")
         public <T> T[] toArray(T[] a) {
             final int n = this.n;
             if (a.length < n) {
@@ -3731,6 +3739,7 @@
      *         the <tt>Comparable</tt> interface.
      * @see Comparable
      */
+    @SuppressWarnings("unchecked")
     public static <T> Comparator<T> reverseOrder() {
         return (Comparator<T>) ReverseComparator.REVERSE_ORDER;
     }