diff --git a/src/main/java/org/apache/commons/lang3/EnumUtils.java b/src/main/java/org/apache/commons/lang3/EnumUtils.java
index 1df43013a..d74853857 100644
--- a/src/main/java/org/apache/commons/lang3/EnumUtils.java
+++ b/src/main/java/org/apache/commons/lang3/EnumUtils.java
@@ -33,10 +33,10 @@ import java.util.Map;
  */
 public class EnumUtils {
 
-    private static final String NULL_ELEMENTS_NOT_PERMITTED = "null elements not permitted";
     private static final String CANNOT_STORE_S_S_VALUES_IN_S_BITS = "Cannot store %s %s values in %s bits";
-    private static final String S_DOES_NOT_SEEM_TO_BE_AN_ENUM_TYPE = "%s does not seem to be an Enum type";
     private static final String ENUM_CLASS_MUST_BE_DEFINED = "EnumClass must be defined.";
+    private static final String NULL_ELEMENTS_NOT_PERMITTED = "null elements not permitted";
+    private static final String S_DOES_NOT_SEEM_TO_BE_AN_ENUM_TYPE = "%s does not seem to be an Enum type";
 
     /**
      * Validate {@code enumClass}.