--- old/src/java.management/share/classes/sun/management/Agent.java	2014-08-26 11:22:05.000000000 +0800
+++ new/src/java.management/share/classes/sun/management/Agent.java	2014-08-26 11:22:04.000000000 +0800
@@ -502,7 +502,7 @@
         } else {
             StringBuilder message = new StringBuilder(params[0]);
             for (int i = 1; i < params.length; i++) {
-                message.append(" " + params[i]);
+                message.append(' ').append(params[i]);
             }
             error(key, message.toString());
         }