src/share/classes/javax/swing/text/EditorKit.java

*** 44,53 ****
--- 44,54 ----
   * it's relationship with a JTextComponent.
   *
   * @author  Timothy Prinzing
   */
  public abstract class EditorKit implements Cloneable, Serializable {
+     private static final long serialVersionUID = -5044124649345887822L;
  
      /**
       * Construct an EditorKit.
       */
      public EditorKit() {