diff --git a/src/main/java/org/apache/commons/lang3/ClassUtils.java b/src/main/java/org/apache/commons/lang3/ClassUtils.java
index c15636ed9..940cc82b2 100644
--- a/src/main/java/org/apache/commons/lang3/ClassUtils.java
+++ b/src/main/java/org/apache/commons/lang3/ClassUtils.java
@@ -1140,8 +1140,8 @@ public class ClassUtils {
      * Get an {@link Iterable} that can iterate over a class hierarchy in ascending (subclass to superclass) order,
      * excluding interfaces.
      *
-     * @param type
-     * @return Iterable
+     * @param type the type to get the class hierarchy from
+     * @return Iterable an Iterable over the class hierarchy of the given class
      */
     public static Iterable<Class<?>> hierarchy(final Class<?> type) {
         return hierarchy(type, Interfaces.EXCLUDE);
@@ -1150,9 +1150,9 @@ public class ClassUtils {
     /**
      * Get an {@link Iterable} that can iterate over a class hierarchy in ascending (subclass to superclass) order.
      *
-     * @param type
-     * @param interfacesBehavior
-     * @return Iterable
+     * @param type the type to get the class hierarchy from
+     * @param interfacesBehavior switch indicating whether to include or exclude interfaces
+     * @return Iterable an Iterable over the class hierarchy of the given class
      */
     public static Iterable<Class<?>> hierarchy(final Class<?> type, Interfaces interfacesBehavior) {
         final Iterable<Class<?>> classes = new Iterable<Class<?>>() {