Back out a CSU experiment.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@922911 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/lang3/CharSequenceUtils.java

@@ -37,32 +37,6 @@ public static int length(CharSequence cs) {
 		return cs == null ? 0 : cs.length();
 	}
 
-	/**
-	 * <p>
-	 * Reverses a CharSequence as per {@link StringBuilder#reverse()}.
-	 * </p>
-	 * 
-	 * <p>
-	 * A <code>null</code> CharSequence returns <code>null</code>.
-	 * </p>
-	 * 
-	 * <pre>
-	 * CharSequenceUtils.reverse(null) = null
-	 * CharSequenceUtils.reverse("").toString() = ""
-	 * CharSequenceUtils.reverse("bat").toString() = "tab"
-	 * </pre>
-	 * 
-	 * @param str
-	 *            the String to reverse, may be null
-	 * @return the reversed String, <code>null</code> if null String input
-	 */
-	public static CharSequence reverse(CharSequence str) {
-		if (str == null) {
-			return null;
-		}
-		return new StringBuilder(str).reverse();
-	}
-
 	/**
 	 * Returns a new <code>CharSequence</code> that is a subsequence of this
 	 * sequence starting with the <code>char</code> value at the specified

src/main/java/org/apache/commons/lang3/StringUtils.java

@@ -5414,7 +5414,7 @@ public static String reverse(String str) {
         if (str == null) {
             return null;
         }
-        return CharSequenceUtils.reverse(str).toString();
+		return new StringBuilder(str).reverse().toString();
     }
 
     /**