diff --git a/src/java.base/share/classes/java/io/InvalidClassException.java b/src/java.base/share/classes/java/io/InvalidClassException.java
index 76c60682b1e..71fd5d18c77 100644
--- a/src/java.base/share/classes/java/io/InvalidClassException.java
+++ b/src/java.base/share/classes/java/io/InvalidClassException.java
@@ -33,6 +33,10 @@ package java.io;
  *      descriptor read from the stream
  * <LI> The class contains unknown datatypes
  * <LI> The class does not have an accessible no-arg constructor
+ * <LI> The ObjectStreamClass of an enum constant does not represent
+ *      an enum type
+ * <LI> Other conditions given in the <cite>Java Object Serialization
+ *      Specification</cite>
  * </UL>
  *
  * @author  unascribed