diff -r 000000000000 -r 959103a6100f src/share/classes/com/sun/tools/javac/tree/DocCommentTable.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/com/sun/tools/javac/tree/DocCommentTable.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.tools.javac.tree;
+
+import com.sun.source.doctree.ErroneousTree;
+import com.sun.tools.javac.parser.Tokens.Comment;
+import com.sun.tools.javac.tree.DCTree.DCDocComment;
+
+/**
+ * A table giving the doc comment, if any, for any tree node.
+ *
+ *  <p><b>This is NOT part of any supported API.
+ *  If you write code that depends on this, you do so at your own
+ *  risk.  This code and its internal interfaces are subject to change
+ *  or deletion without notice.</b>
+ */
+public interface DocCommentTable {
+    /**
+     * Check if a tree node has a corresponding doc comment.
+     */
+    public boolean hasComment(JCTree tree);
+
+    /**
+     * Get the Comment token containing the doc comment, if any, for a tree node.
+     */
+    public Comment getComment(JCTree tree);
+
+    /**
+     * Get the plain text of the doc comment, if any, for a tree node.
+     */
+    public String getCommentText(JCTree tree);
+
+    /**
+     * Get the parsed form of the doc comment as a DocTree. If any errors
+     * are detected during parsing, they will be reported via
+     * {@link ErroneousTree ErroneousTree} nodes within the resulting tree.
+     */
+    public DCDocComment getCommentTree(JCTree tree);
+
+    /**
+     * Set the Comment to be associated with a tree node.
+     */
+    public void putComment(JCTree tree, Comment c);
+}