--- old/src/java.base/share/classes/java/security/CodeSource.java	2014-08-27 22:08:00.000000000 +0800
+++ new/src/java.base/share/classes/java/security/CodeSource.java	2014-08-27 22:08:00.000000000 +0800
@@ -468,12 +468,12 @@
 
         if (this.certs != null && this.certs.length > 0) {
             for (int i = 0; i < this.certs.length; i++) {
-                sb.append( " " + this.certs[i]);
+                sb.append(' ').append(this.certs[i]);
             }
 
         } else if (this.signers != null && this.signers.length > 0) {
             for (int i = 0; i < this.signers.length; i++) {
-                sb.append( " " + this.signers[i]);
+                sb.append(' ').append(this.signers[i]);
             }
         } else {
             sb.append(" <no signer certificates>");