--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/DocletElement.java	Thu Nov 30 06:14:25 2017 -0800
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2017, 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 jdk.javadoc.internal.doclets.toolkit;
+
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ElementKind;
+import javax.lang.model.element.ElementVisitor;
+import javax.lang.model.element.Modifier;
+import javax.lang.model.element.Name;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.type.TypeMirror;
+import javax.tools.FileObject;
+import java.lang.annotation.Annotation;
+import java.util.Set;
+
+public interface DocletElement extends Element {
+
+    public default TypeMirror asType() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default ElementKind getKind() {
+        return ElementKind.OTHER;
+    }
+
+    default Set<Modifier> getModifiers() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default Name getSimpleName() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default Element getEnclosingElement() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default java.util.List<? extends Element> getEnclosedElements() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default java.util.List<? extends AnnotationMirror> getAnnotationMirrors() {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default <A extends Annotation> A getAnnotation(Class<A> annotationType) {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    default <R, P> R accept(ElementVisitor<R, P> v, P p) {
+        return v.visitUnknown(this, p);
+    }
+
+    default <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) {
+        throw new UnsupportedOperationException("Unsupported method");
+    }
+
+    /**
+     * Returns the anchoring package element, in the case of a
+     * module element, this is the module's unnamed package.
+     * @return the anchor element.
+     */
+    PackageElement getPackageElement();
+
+    /**
+     * Returns the file object associated with this special
+     * element such as overview.html, doc-file/foo.html.
+     * @return the file object
+     */
+    FileObject getFileObject();
+
+    /**
+     * Returns the subkind of this element.
+     * @return a subkind
+     */
+    Kind getSubKind();
+
+    /**
+     * Sub kind enums that this element supports.
+     */
+    public static enum Kind {
+        OVERVIEW, DOCFILE;
+    }
+}