From 73dd46af21b6344dc403a425d785ba94fafaca85 Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Thu, 16 Nov 2017 17:48:29 +0100
Subject: [PATCH] Remove duplicate numbers from StringUtils.numbersAndLetters

Fixes SMACK-784.
---
 .../src/main/java/org/jivesoftware/smack/util/StringUtils.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/smack-core/src/main/java/org/jivesoftware/smack/util/StringUtils.java b/smack-core/src/main/java/org/jivesoftware/smack/util/StringUtils.java
index c2bb9210a..1a4d3a263 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/util/StringUtils.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/util/StringUtils.java
@@ -285,7 +285,7 @@ public class StringUtils {
      * array index.
      */
     private static final char[] numbersAndLetters = ("0123456789abcdefghijklmnopqrstuvwxyz" +
-                    "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ").toCharArray();
+                    "ABCDEFGHIJKLMNOPQRSTUVWXYZ").toCharArray();
 
     /**
      * Returns a random String of numbers and letters (lower and upper case)