src/java.desktop/share/classes/java/awt/desktop/PrintFilesEvent.java

@@ -37,10 +37,13 @@
  * @see PrintFilesHandler#printFiles(PrintFilesEvent)
  * @since 9
  */
 public final class PrintFilesEvent extends FilesEvent {
 
+    /**
+     * Use serialVersionUID from JDK 9 for interoperability.
+     */
     private static final long serialVersionUID = -5752560876153618618L;
 
     /**
      * Constructs a {@code PrintFilesEvent}.
      *