diff --git a/src/main/java/org/apache/commons/lang3/StringUtils.java b/src/main/java/org/apache/commons/lang3/StringUtils.java
index 18567532421..7409bff3885 100644
--- a/src/main/java/org/apache/commons/lang3/StringUtils.java
+++ b/src/main/java/org/apache/commons/lang3/StringUtils.java
@@ -1274,13 +1274,13 @@ public static boolean containsNone(final CharSequence cs, final String invalidCh
      * </p>
      *
      * <pre>
-     * StringUtils.containsOnly(null, *)       = false
-     * StringUtils.containsOnly(*, null)       = false
-     * StringUtils.containsOnly("", *)         = true
-     * StringUtils.containsOnly("ab", '')      = false
-     * StringUtils.containsOnly("abab", 'abc') = true
-     * StringUtils.containsOnly("ab1", 'abc')  = false
-     * StringUtils.containsOnly("abz", 'abc')  = false
+     * StringUtils.containsOnly(null, *)                 = false
+     * StringUtils.containsOnly(*, null)                 = false
+     * StringUtils.containsOnly("", *)                   = true
+     * StringUtils.containsOnly("ab", '')                = false
+     * StringUtils.containsOnly("abab", ['a', 'b', 'c']) = true
+     * StringUtils.containsOnly("ab1", ['a', 'b', 'c'])  = false
+     * StringUtils.containsOnly("abz", ['a', 'b', 'c'])  = false
      * </pre>
      *
      * @param cs    the String to check, may be null.
@@ -1311,13 +1311,13 @@ public static boolean containsOnly(final CharSequence cs, final char... valid) {
      * </p>
      *
      * <pre>
-     * StringUtils.containsOnly(null, *)       = false
-     * StringUtils.containsOnly(*, null)       = false
-     * StringUtils.containsOnly("", *)         = true
-     * StringUtils.containsOnly("ab", "")      = false
-     * StringUtils.containsOnly("abab", "abc") = true
-     * StringUtils.containsOnly("ab1", "abc")  = false
-     * StringUtils.containsOnly("abz", "abc")  = false
+     * StringUtils.containsOnly(null, *)                 = false
+     * StringUtils.containsOnly(*, null)                 = false
+     * StringUtils.containsOnly("", *)                   = true
+     * StringUtils.containsOnly("ab", "")                = false
+     * StringUtils.containsOnly("abab", ['a', 'b', 'c']) = true
+     * StringUtils.containsOnly("ab1", ['a', 'b', 'c'])  = false
+     * StringUtils.containsOnly("abz", ['a', 'b', 'c'])  = false
      * </pre>
      *
      * @param cs         the CharSequence to check, may be null.