--- old/src/java.base/share/classes/sun/security/ssl/SignatureAlgorithmsExtension.java	2014-08-27 09:59:50.000000000 +0800
+++ new/src/java.base/share/classes/sun/security/ssl/SignatureAlgorithmsExtension.java	2014-08-27 09:59:49.000000000 +0800
@@ -119,17 +119,17 @@
     @Override
     public String toString() {
         StringBuilder sb = new StringBuilder();
+        sb.append("Extension ").append(type).append(", signature_algorithms: ");
         boolean opened = false;
         for (SignatureAndHashAlgorithm signAlg : algorithms) {
             if (opened) {
-                sb.append(", " + signAlg.getAlgorithmName());
+                sb.append(", ").append(signAlg.getAlgorithmName());
             } else {
                 sb.append(signAlg.getAlgorithmName());
                 opened = true;
             }
         }
-
-        return "Extension " + type + ", signature_algorithms: " + sb;
+        return  sb.toString();
     }
 }