Index: org/apache/catalina/tribes/util/Arrays.java
===================================================================
--- org/apache/catalina/tribes/util/Arrays.java	(revision 831814)
+++ org/apache/catalina/tribes/util/Arrays.java	(working copy)
@@ -56,7 +56,7 @@
     }
 
     public static String toString(byte[] data, int offset, int length) {
-        StringBuffer buf = new StringBuffer("{");
+        StringBuilder buf = new StringBuilder("{");
         if ( data != null && length > 0 ) {
             buf.append(data[offset++]);
             for (int i = offset; i < length; i++) {
@@ -72,7 +72,7 @@
     }
     
     public static String toString(Object[] data, int offset, int length) {
-        StringBuffer buf = new StringBuffer("{");
+        StringBuilder buf = new StringBuilder("{");
         if ( data != null && length > 0 ) {
             buf.append(data[offset++]);
             for (int i = offset; i < length; i++) {
@@ -88,7 +88,7 @@
     }
     
     public static String toNameString(Member[] data, int offset, int length) {
-        StringBuffer buf = new StringBuffer("{");
+        StringBuilder buf = new StringBuilder("{");
         if ( data != null && length > 0 ) {
             buf.append(data[offset++].getName());
             for (int i = offset; i < length; i++) {
Index: org/apache/catalina/tribes/util/StringManager.java
===================================================================
--- org/apache/catalina/tribes/util/StringManager.java	(revision 831814)
+++ org/apache/catalina/tribes/util/StringManager.java	(working copy)
@@ -154,7 +154,7 @@
 
             iString = MessageFormat.format(value, nonNullArgs);
         } catch (IllegalArgumentException iae) {
-            StringBuffer buf = new StringBuffer();
+            StringBuilder buf = new StringBuilder();
             buf.append(value);
             for (int i = 0; i < args.length; i++) {
                 buf.append(" arg[" + i + "]=" + args[i]);