src/java.xml.ws/share/classes/com/sun/xml/internal/messaging/saaj/packaging/mime/internet/ContentType.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2012, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -202,11 +202,11 @@
      */
     public String toString() {
         if (primaryType == null || subType == null) // need both
             return null;
 
-        StringBuffer sb = new StringBuffer();
+        StringBuilder sb = new StringBuilder();
         sb.append(primaryType).append('/').append(subType);
         if (list != null)
         // Http Binding section of the "SOAP with attachments" specification says,
         // "SOAP message senders should send Content-Type headers on a single long line."
         // (http://www.w3.org/TR/SOAP-attachments#HTTPBinding)