*** old/src/java.base/share/classes/java/lang/StringBuffer.java	Mon Jun 29 11:11:55 2015
--- new/src/java.base/share/classes/java/lang/StringBuffer.java	Mon Jun 29 11:11:54 2015

*** 24,33 ****
--- 24,34 ----
   */
  
  package java.lang;
  
  import java.util.Arrays;
+ import jdk.internal.HotSpotIntrinsicCandidate;
  
  /**
   * A thread-safe, mutable sequence of characters.
   * A string buffer is like a {@link String}, but can be modified. At any
   * point in time it contains some particular sequence of characters, but

*** 110,119 ****
--- 111,121 ----
  
      /**
       * Constructs a string buffer with no characters in it and an
       * initial capacity of 16 characters.
       */
+     @HotSpotIntrinsicCandidate
      public StringBuffer() {
          super(16);
      }
  
      /**

*** 122,131 ****
--- 124,134 ----
       *
       * @param      capacity  the initial capacity.
       * @exception  NegativeArraySizeException  if the {@code capacity}
       *               argument is less than {@code 0}.
       */
+     @HotSpotIntrinsicCandidate
      public StringBuffer(int capacity) {
          super(capacity);
      }
  
      /**

*** 133,142 ****
--- 136,146 ----
       * specified string. The initial capacity of the string buffer is
       * {@code 16} plus the length of the string argument.
       *
       * @param   str   the initial contents of the buffer.
       */
+     @HotSpotIntrinsicCandidate
      public StringBuffer(String str) {
          super(str.length() + 16);
          append(str);
      }
  

*** 269,278 ****
--- 273,283 ----
          super.append(String.valueOf(obj));
          return this;
      }
  
      @Override
+     @HotSpotIntrinsicCandidate
      public synchronized StringBuffer append(String str) {
          toStringCache = null;
          super.append(str);
          return this;
      }

*** 380,396 ****
--- 385,403 ----
          super.append(b);
          return this;
      }
  
      @Override
+     @HotSpotIntrinsicCandidate
      public synchronized StringBuffer append(char c) {
          toStringCache = null;
          super.append(c);
          return this;
      }
  
      @Override
+     @HotSpotIntrinsicCandidate
      public synchronized StringBuffer append(int i) {
          toStringCache = null;
          super.append(i);
          return this;
      }

*** 668,677 ****
--- 675,685 ----
          super.reverse();
          return this;
      }
  
      @Override
+     @HotSpotIntrinsicCandidate
      public synchronized String toString() {
          if (toStringCache == null) {
              toStringCache = Arrays.copyOfRange(value, 0, count);
          }
          return new String(toStringCache, true);