--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.javadoc/share/classes/com/sun/tools/doclets/internal/toolkit/util/MetaKeywords.java	Sun Aug 17 15:52:32 2014 +0100
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2002, 2014, 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.doclets.internal.toolkit.util;
+
+import java.util.*;
+
+import com.sun.javadoc.*;
+import com.sun.tools.javac.jvm.Profile;
+import com.sun.tools.doclets.internal.toolkit.*;
+
+/**
+ * Provides methods for creating an array of class, method and
+ * field names to be included as meta keywords in the HTML header
+ * of class pages.  These keywords improve search results
+ * on browsers that look for keywords.
+ *
+ *  <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 Doug Kramer
+ */
+public class MetaKeywords {
+
+    /**
+     * The global configuration information for this run.
+     */
+    private final Configuration configuration;
+    private final Utils utils;
+
+    /**
+     * Constructor
+     */
+    public MetaKeywords(Configuration configuration) {
+        this.configuration = configuration;
+        this.utils = configuration.utils;
+    }
+
+    /**
+     * Returns an array of strings where each element
+     * is a class, method or field name.  This array is
+     * used to create one meta keyword tag for each element.
+     * Method parameter lists are converted to "()" and
+     * overloads are combined.
+     *
+     * Constructors are not included because they have the same
+     * name as the class, which is already included.
+     * Nested class members are not included because their
+     * definitions are on separate pages.
+     */
+    public String[] getMetaKeywords(ClassDoc classdoc) {
+        ArrayList<String> results = new ArrayList<>();
+
+        // Add field and method keywords only if -keywords option is used
+        if( configuration.keywords ) {
+            results.addAll(getClassKeyword(classdoc));
+            results.addAll(getMemberKeywords(classdoc.fields()));
+            results.addAll(getMemberKeywords(classdoc.methods()));
+        }
+        return results.toArray(new String[]{});
+    }
+
+    /**
+     * Get the current class for a meta tag keyword, as the first
+     * and only element of an array list.
+     */
+    protected ArrayList<String> getClassKeyword(ClassDoc classdoc) {
+        String cltypelower = classdoc.isInterface() ? "interface" : "class";
+        ArrayList<String> metakeywords = new ArrayList<>(1);
+        metakeywords.add(classdoc.qualifiedName() + " " + cltypelower);
+        return metakeywords;
+    }
+
+    /**
+     * Get the package keywords.
+     */
+    public String[] getMetaKeywords(PackageDoc packageDoc) {
+        if( configuration.keywords ) {
+            String pkgName = utils.getPackageName(packageDoc);
+            return new String[] { pkgName + " " + "package" };
+        } else {
+            return new String[] {};
+        }
+    }
+
+    /**
+     * Get the profile keywords.
+     *
+     * @param profile the profile being documented
+     */
+    public String[] getMetaKeywords(Profile profile) {
+        if( configuration.keywords ) {
+            String profileName = profile.name;
+            return new String[] { profileName + " " + "profile" };
+        } else {
+            return new String[] {};
+        }
+    }
+
+    /**
+     * Get the overview keywords.
+     */
+    public String[] getOverviewMetaKeywords(String title, String docTitle) {
+        if( configuration.keywords ) {
+            String windowOverview = configuration.getText(title);
+            String[] metakeywords = { windowOverview };
+            if (docTitle.length() > 0 ) {
+                metakeywords[0] += ", " + docTitle;
+            }
+            return metakeywords;
+        } else {
+            return new String[] {};
+        }
+    }
+
+    /**
+     * Get members for meta tag keywords as an array,
+     * where each member name is a string element of the array.
+     * The parameter lists are not included in the keywords;
+     * therefore all overloaded methods are combined.<br>
+     * Example: getValue(Object) is returned in array as getValue()
+     *
+     * @param memberdocs  array of MemberDoc objects to be added to keywords
+     */
+    protected ArrayList<String> getMemberKeywords(MemberDoc[] memberdocs) {
+        ArrayList<String> results = new ArrayList<>();
+        String membername;
+        for (MemberDoc memberdoc : memberdocs) {
+            membername = memberdoc.name() + (memberdoc.isMethod() ? "()" : "");
+            if (!results.contains(membername)) {
+                results.add(membername);
+            }
+        }
+        return results;
+    }
+}