--- old/src/java.base/share/classes/java/security/cert/PKIXBuilderParameters.java	2014-08-27 22:08:11.000000000 +0800
+++ new/src/java.base/share/classes/java/security/cert/PKIXBuilderParameters.java	2014-08-27 22:08:11.000000000 +0800
@@ -192,7 +192,7 @@
         StringBuilder sb = new StringBuilder();
         sb.append("[\n");
         sb.append(super.toString());
-        sb.append("  Maximum Path Length: " + maxPathLength + "\n");
+        sb.append("  Maximum Path Length: ").append(maxPathLength).append('\n');
         sb.append("]\n");
         return sb.toString();
     }