--- old/src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/Parser.jjt	2014-08-27 10:03:15.000000000 +0800
+++ new/src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/Parser.jjt	2014-08-27 10:03:14.000000000 +0800
@@ -213,7 +213,7 @@
   t=<IDENTIFIER> { jjtThis.name.append(t.image); }
 (
 "." t=<IDENTIFIER> 
-  {jjtThis.name.append( "." + t.image); }
+  {jjtThis.name.append( '.').append(t.image); }
 )*
 
 }
@@ -228,7 +228,7 @@
   {jjtThis.address.append(t.image); }
 (
 "." t= <INTEGER_LITERAL> 
-  {jjtThis.address.append( "." + t.image); }
+  {jjtThis.address.append( '.').append(t.image); }
 )*
 
 }
@@ -253,7 +253,7 @@
   {jjtThis.address.append(t.image); }
 (
 "!" t= <INTEGER_LITERAL> 
-  {jjtThis.address.append( "." + t.image); }
+  {jjtThis.address.append( '.').append(t.image); }
 )*
 }
 
@@ -267,7 +267,7 @@
   {jjtThis.address.append(t.image); }
 (
 "." t= <INTEGER_LITERAL> 
-  {jjtThis.address.append( "." + t.image); }
+  {jjtThis.address.append( '.').append(t.image); }
 )* "/" t= <INTEGER_LITERAL> {jjtThis.mask = t.image; }
 }