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

@@ -35,10 +35,11 @@
  * @see     java.lang.Thread#resume()
  * @see     java.lang.Thread#suspend()
  * @since   1.0
  */
 public class IllegalThreadStateException extends IllegalArgumentException {
+    @java.io.Serial
     private static final long serialVersionUID = -7626246362397460174L;
 
     /**
      * Constructs an <code>IllegalThreadStateException</code> with no
      * detail message.