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

*** 31,42 ****
--- 31,46 ----
   * For example:
   * <pre>
   *   <em>expression</em> instanceof <em>type</em>
   * </pre>
   *
+  * @deprecated Nashorn JavaScript script engine and APIs, and the jjs tool
+  * are deprecated with the intent to remove them in a future release.
+  *
   * @since 9
   */
+ @Deprecated(since="11", forRemoval=true)
  public interface InstanceOfTree extends ExpressionTree {
      /**
       * Returns the expression whose type is being checked.
       *
       * @return the expression whose type is being checked