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

*** 34,45 ****
--- 34,49 ----
   *   <em>operator</em> <em>expression</em>
   *
   *   <em>expression</em> <em>operator</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 UnaryTree extends ExpressionTree {
      /**
       * Returns the expression operated by the unary operator.
       *
       * @return The expression operated by the unary operator.