--- a/jdk/src/share/classes/java/lang/CharSequence.java	Wed May 01 21:05:10 2013 +0800
+++ b/jdk/src/share/classes/java/lang/CharSequence.java	Wed May 01 08:35:09 2013 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -25,6 +25,13 @@
 
 package java.lang;
 
+import java.util.NoSuchElementException;
+import java.util.PrimitiveIterator;
+import java.util.Spliterator;
+import java.util.Spliterators;
+import java.util.function.IntConsumer;
+import java.util.stream.IntStream;
+import java.util.stream.StreamSupport;
 
 /**
  * A <tt>CharSequence</tt> is a readable sequence of <code>char</code> values. This
@@ -108,4 +115,95 @@
      */
     public String toString();
 
+    /**
+     * Returns a stream of {@code int} zero-extending the {@code char} values
+     * from this sequence.  Any char which maps to a <a
+     * href="{@docRoot}/java/lang/Character.html#unicode">surrogate code
+     * point</a> is passed through uninterpreted.
+     *
+     * <p>If the sequence is mutated while the stream is being read, the
+     * result is undefined.
+     *
+     * @return an IntStream of char values from this sequence
+     * @since 1.8
+     */
+    public default IntStream chars() {
+        class CharIterator implements PrimitiveIterator.OfInt {
+            int cur = 0;
+
+            public boolean hasNext() {
+                return cur < length();
+            }
+
+            public int nextInt() {
+                if (hasNext()) {
+                    return charAt(cur++);
+                } else {
+                    throw new NoSuchElementException();
+                }
+            }
+
+            @Override
+            public void forEachRemaining(IntConsumer block) {
+                for (; cur < length(); cur++) {
+                    block.accept(charAt(cur));
+                }
+            }
+        }
+
+        return StreamSupport.intStream(() ->
+                Spliterators.spliterator(
+                        new CharIterator(),
+                        length(),
+                        Spliterator.ORDERED),
+                Spliterator.SUBSIZED | Spliterator.SIZED | Spliterator.ORDERED);
+    }
+
+    /**
+     * Returns a stream of code point values from this sequence.  Any surrogate
+     * pairs encountered in the sequence are combined as if by {@linkplain
+     * Character#toCodePoint Character.toCodePoint} and the result is passed
+     * to the stream. Any other code units, including ordinary BMP characters,
+     * unpaired surrogates, and undefined code units, are zero-extended to
+     * {@code int} values which are then passed to the stream.
+     *
+     * <p>If the sequence is mutated while the stream is being read, the result
+     * is undefined.
+     *
+     * @return an IntStream of Unicode code points from this sequence
+     * @since 1.8
+     */
+    public default IntStream codePoints() {
+        class CodePointIterator implements PrimitiveIterator.OfInt {
+            int cur = 0;
+
+            @Override
+            public void forEachRemaining(IntConsumer block) {
+                while (cur < length()) {
+                    int cp = Character.codePointAt(CharSequence.this, cur);
+                    cur += Character.charCount(cp);
+                    block.accept(cp);
+                }
+            }
+
+            public boolean hasNext() {
+                return cur < length();
+            }
+
+            public int nextInt() {
+                if (!hasNext()) {
+                    throw new NoSuchElementException();
+                }
+                int cp = Character.codePointAt(CharSequence.this, cur);
+                cur += Character.charCount(cp);
+                return cp;
+            }
+        }
+
+        return StreamSupport.intStream(() ->
+                Spliterators.spliteratorUnknownSize(
+                        new CodePointIterator(),
+                        Spliterator.ORDERED),
+                Spliterator.SUBSIZED | Spliterator.SIZED | Spliterator.ORDERED);
+    }
 }