src/jdk.snmp/share/classes/com/sun/jmx/snmp/IPAcl/TokenMgrError.java

rev 10521 : 8055723[core]: Replace concat String to append in StringBuilder parameters
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -97,11 +97,11 @@
               retval.append("\\\\");
               continue;
            default:
               if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
                  String s = "0000" + Integer.toString(ch, 16);
-                 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
+                 retval.append("\\u").append(s.substring(s.length() - 4, s.length()));
               } else {
                  retval.append(ch);
               }
               continue;
         }