Index: org/apache/catalina/tribes/transport/bio/BioSender.java
===================================================================
--- org/apache/catalina/tribes/transport/bio/BioSender.java	(revision 831814)
+++ org/apache/catalina/tribes/transport/bio/BioSender.java	(working copy)
@@ -150,7 +150,7 @@
      * Name of this SockerSender
      */
     public String toString() {
-        StringBuffer buf = new StringBuffer("DataSender[(");
+        StringBuilder buf = new StringBuilder("DataSender[(");
         buf.append(super.toString()).append(")");
         buf.append(getAddress()).append(":").append(getPort()).append("]");
         return buf.toString();