diff -r 87884cd0fea3 -r 011cf7e0a148 src/share/classes/com/sun/source/tree/Tree.java
--- a/src/share/classes/com/sun/source/tree/Tree.java	Mon Feb 18 14:29:40 2013 -0800
+++ b/src/share/classes/com/sun/source/tree/Tree.java	Tue Feb 19 00:31:45 2013 -0800
@@ -39,11 +39,13 @@
  *
  * @since 1.6
  */
+@jdk.Supported
 public interface Tree {
 
     /**
      * Enumerates all kinds of trees.
      */
+    @jdk.Supported
     public enum Kind {
 
         ANNOTATED_TYPE(AnnotatedTypeTree.class),