--- old/./src/share/classes/java/lang/StringBuffer.java	2012-08-20 20:17:00.807084202 -0400
+++ new/./src/share/classes/java/lang/StringBuffer.java	2012-08-20 20:17:00.691084206 -0400
@@ -319,6 +319,16 @@
         return this;
     }
 
+    /**
+     * @throws IllegalArgumentException {@inheritDoc}
+     * @since 1.8
+     */
+    public synchronized StringBuffer append(int n, CharSequence cs) {
+        super.append(n, cs);
+        return this;
+    }
+        
+    
     public synchronized StringBuffer append(char[] str) {
         super.append(str);
         return this;