src/java.base/share/classes/java/lang/IllegalMonitorStateException.java

@@ -38,10 +38,11 @@
  * @see     java.lang.Object#wait(long, int)
  * @since   1.0
  */
 public
 class IllegalMonitorStateException extends RuntimeException {
+    @java.io.Serial
     private static final long serialVersionUID = 3713306369498869069L;
 
     /**
      * Constructs an <code>IllegalMonitorStateException</code> with no
      * detail message.