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

*** 38,47 ****
--- 38,48 ----
   * @author  unascribed
   * @since   1.0
   */
  public
  class NoClassDefFoundError extends LinkageError {
+     @java.io.Serial
      private static final long serialVersionUID = 9095859863287012458L;
  
      /**
       * Constructs a <code>NoClassDefFoundError</code> with no detail message.
       */