nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/api/tree/UnknownTreeException.java

@@ -31,11 +31,11 @@
  * can occur if the language evolves and new kinds of Trees are
  * added to the {@code Tree} hierarchy.  May be thrown by a
  * {@linkplain TreeVisitor tree visitor} to indicate that the
  * visitor was created for a prior version of the language.
  *
- * @since 1.9
+ * @since 9
  */
 public class UnknownTreeException extends RuntimeException {
 
     private static final long serialVersionUID = 1L;