--- a/jdk/src/java.management/share/classes/sun/management/Agent.java	Wed Dec 10 14:15:31 2014 -0800
+++ b/jdk/src/java.management/share/classes/sun/management/Agent.java	Thu Dec 11 15:23:02 2014 +0800
@@ -499,7 +499,7 @@
         } 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());
         }