--- old/src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/NetMaskImpl.java	2014-08-26 11:23:27.000000000 +0800
+++ new/src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/NetMaskImpl.java	2014-08-26 11:23:27.000000000 +0800
@@ -65,7 +65,7 @@
                 "extractSubNet", "BINARY ARRAY :");
             StringBuilder sb = new StringBuilder();
             for(int i =0; i < addrLength; i++) {
-                sb.append((b[i] & 0xFF) + ":");
+                sb.append(b[i] & 0xFF).append(':');
             }
             SNMP_LOGGER.logp(Level.FINEST, NetMaskImpl.class.getName(),
                 "extractSubNet", sb.toString());