diff --git a/src/main/java/org/apache/commons/lang3/ClassUtils.java b/src/main/java/org/apache/commons/lang3/ClassUtils.java
index a6d1d1ddb..11c71bd75 100644
--- a/src/main/java/org/apache/commons/lang3/ClassUtils.java
+++ b/src/main/java/org/apache/commons/lang3/ClassUtils.java
@@ -82,6 +82,7 @@ public enum Interfaces {
      * Maps names of primitives to their corresponding primitive {@code Class}es.
      */
     private static final Map<String, Class<?>> namePrimitiveMap = new HashMap<>();
+
     static {
          namePrimitiveMap.put("boolean", Boolean.TYPE);
          namePrimitiveMap.put("byte", Byte.TYPE);
@@ -98,6 +99,7 @@ public enum Interfaces {
      * Maps primitive {@code Class}es to their corresponding wrapper {@code Class}.
      */
     private static final Map<Class<?>, Class<?>> primitiveWrapperMap = new HashMap<>();
+
     static {
          primitiveWrapperMap.put(Boolean.TYPE, Boolean.class);
          primitiveWrapperMap.put(Byte.TYPE, Byte.class);
@@ -114,6 +116,7 @@ public enum Interfaces {
      * Maps wrapper {@code Class}es to their corresponding primitive types.
      */
     private static final Map<Class<?>, Class<?>> wrapperPrimitiveMap = new HashMap<>();
+
     static {
         for (final Map.Entry<Class<?>, Class<?>> entry : primitiveWrapperMap.entrySet()) {
             final Class<?> primitiveClass = entry.getKey();
@@ -133,6 +136,7 @@ public enum Interfaces {
      * Maps an abbreviation used in array class names to corresponding primitive class name.
      */
     private static final Map<String, String> reverseAbbreviationMap;
+
     // Feed abbreviation maps
     static {
         final Map<String, String> m = new HashMap<>();