src/java.naming/share/classes/javax/naming/Reference.java

rev 10537 : 8055723[core]: Replace concat String to append in StringBuilder parameters
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -362,12 +362,13 @@
       * This representation is intended for display only and not to be parsed.
       *
       * @return The non-null string representation of this reference.
       */
     public String toString() {
-        StringBuilder sb = new StringBuilder("Reference Class Name: " +
-                                             className + "\n");
+        StringBuilder sb = new StringBuilder();
+        sb.append("Reference Class Name: ");
+        sb.append(className).append('\n');
         int len = addrs.size();
         for (int i = 0; i < len; i++)
             sb.append(get(i).toString());
 
         return sb.toString();