--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/DocletConstants.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2003, 2016, 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.util;
+
+/**
+ * Stores all constants for a Doclet.  Extend this class if you have doclet
+ * specific constants to add.
+ *
+ *  <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>
+ *
+ * @author Jamie Ho
+ */
+public class DocletConstants {
+
+    /**
+     * The default amount of space between tab stops.
+     */
+    public static final int DEFAULT_TAB_STOP_LENGTH = 8;
+
+    /**
+     * The line separator for the current operating system.
+     */
+    public static final String NL = System.getProperty("line.separator");
+
+    /**
+     * The default package name.
+     */
+    public static final String DEFAULT_PACKAGE_NAME = "<Unnamed>";
+
+    /**
+     * The default package file name.
+     */
+    public static final String DEFAULT_PACKAGE_FILE_NAME = "default";
+}