From f59a674a26d349b7069158023194ad0d7a38a9e4 Mon Sep 17 00:00:00 2001
From: Benedikt Ritter <britter@apache.org>
Date: Fri, 24 Jul 2015 13:07:12 +0200
Subject: [PATCH] Reuse functionality from StringUtils instead of duplicating
 code

---
 .../org/apache/commons/lang3/math/NumberUtils.java     | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/src/main/java/org/apache/commons/lang3/math/NumberUtils.java b/src/main/java/org/apache/commons/lang3/math/NumberUtils.java
index 8f99c782d..d9a569f99 100644
--- a/src/main/java/org/apache/commons/lang3/math/NumberUtils.java
+++ b/src/main/java/org/apache/commons/lang3/math/NumberUtils.java
@@ -1348,15 +1348,7 @@ public class NumberUtils {
      * @return <code>true</code> if str contains only Unicode numeric
      */
     public static boolean isDigits(final String str) {
-        if (StringUtils.isEmpty(str)) {
-            return false;
-        }
-        for (int i = 0; i < str.length(); i++) {
-            if (!Character.isDigit(str.charAt(i))) {
-                return false;
-            }
-        }
-        return true;
+        return StringUtils.isNumeric(str);
     }
 
     /**