src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java
changeset 47216 71c04702a3d5
parent 47047 91082c3c1d05
child 47300 a905ce398074
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDocletWriter.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,2617 @@
+/*
+ * Copyright (c) 1998, 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.formats.html;
+
+import java.text.SimpleDateFormat;
+import java.util.*;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import javax.lang.model.element.AnnotationMirror;
+import javax.lang.model.element.AnnotationValue;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.ExecutableElement;
+import javax.lang.model.element.ModuleElement;
+import javax.lang.model.element.Name;
+import javax.lang.model.element.PackageElement;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.element.VariableElement;
+import javax.lang.model.type.DeclaredType;
+import javax.lang.model.type.TypeMirror;
+import javax.lang.model.util.SimpleAnnotationValueVisitor9;
+import javax.lang.model.util.SimpleElementVisitor9;
+import javax.lang.model.util.SimpleTypeVisitor9;
+
+import com.sun.source.doctree.AttributeTree;
+import com.sun.source.doctree.AttributeTree.ValueKind;
+import com.sun.source.doctree.CommentTree;
+import com.sun.source.doctree.DocRootTree;
+import com.sun.source.doctree.DocTree;
+import com.sun.source.doctree.DocTree.Kind;
+import com.sun.source.doctree.EndElementTree;
+import com.sun.source.doctree.EntityTree;
+import com.sun.source.doctree.ErroneousTree;
+import com.sun.source.doctree.IndexTree;
+import com.sun.source.doctree.InheritDocTree;
+import com.sun.source.doctree.LinkTree;
+import com.sun.source.doctree.LiteralTree;
+import com.sun.source.doctree.SeeTree;
+import com.sun.source.doctree.StartElementTree;
+import com.sun.source.doctree.SummaryTree;
+import com.sun.source.doctree.TextTree;
+import com.sun.source.util.SimpleDocTreeVisitor;
+
+import jdk.javadoc.internal.doclets.formats.html.markup.Comment;
+import jdk.javadoc.internal.doclets.formats.html.markup.ContentBuilder;
+import jdk.javadoc.internal.doclets.formats.html.markup.DocType;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlAttr;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlConstants;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlDocWriter;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlDocument;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlStyle;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTag;
+import jdk.javadoc.internal.doclets.formats.html.markup.HtmlTree;
+import jdk.javadoc.internal.doclets.formats.html.markup.RawHtml;
+import jdk.javadoc.internal.doclets.formats.html.markup.StringContent;
+import jdk.javadoc.internal.doclets.toolkit.AnnotationTypeWriter;
+import jdk.javadoc.internal.doclets.toolkit.ClassWriter;
+import jdk.javadoc.internal.doclets.toolkit.BaseConfiguration;
+import jdk.javadoc.internal.doclets.toolkit.Content;
+import jdk.javadoc.internal.doclets.toolkit.Messages;
+import jdk.javadoc.internal.doclets.toolkit.PackageSummaryWriter;
+import jdk.javadoc.internal.doclets.toolkit.Resources;
+import jdk.javadoc.internal.doclets.toolkit.taglets.DocRootTaglet;
+import jdk.javadoc.internal.doclets.toolkit.taglets.TagletWriter;
+import jdk.javadoc.internal.doclets.toolkit.util.CommentHelper;
+import jdk.javadoc.internal.doclets.toolkit.util.DocFile;
+import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;
+import jdk.javadoc.internal.doclets.toolkit.util.DocLink;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPath;
+import jdk.javadoc.internal.doclets.toolkit.util.DocPaths;
+import jdk.javadoc.internal.doclets.toolkit.util.DocletConstants;
+import jdk.javadoc.internal.doclets.toolkit.util.ImplementedMethods;
+import jdk.javadoc.internal.doclets.toolkit.util.Utils;
+
+import static com.sun.source.doctree.DocTree.Kind.*;
+import static jdk.javadoc.internal.doclets.toolkit.util.CommentHelper.SPACER;
+
+
+/**
+ * Class for the Html Format Code Generation specific to JavaDoc.
+ * This Class contains methods related to the Html Code Generation which
+ * are used extensively while generating the entire documentation.
+ *
+ *  <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 Atul M Dambalkar
+ * @author Robert Field
+ * @author Bhavesh Patel (Modified)
+ */
+public class HtmlDocletWriter extends HtmlDocWriter {
+
+    /**
+     * Relative path from the file getting generated to the destination
+     * directory. For example, if the file getting generated is
+     * "java/lang/Object.html", then the path to the root is "../..".
+     * This string can be empty if the file getting generated is in
+     * the destination directory.
+     */
+    public final DocPath pathToRoot;
+
+    /**
+     * Platform-independent path from the current or the
+     * destination directory to the file getting generated.
+     * Used when creating the file.
+     */
+    public final DocPath path;
+
+    /**
+     * Name of the file getting generated. If the file getting generated is
+     * "java/lang/Object.html", then the filename is "Object.html".
+     */
+    public final DocPath filename;
+
+    /**
+     * The global configuration information for this run.
+     */
+    public final HtmlConfiguration configuration;
+
+    protected final Utils utils;
+
+    protected final Contents contents;
+
+    protected final Messages messages;
+
+    protected final Resources resources;
+
+    /**
+     * To check whether annotation heading is printed or not.
+     */
+    protected boolean printedAnnotationHeading = false;
+
+    /**
+     * To check whether annotation field heading is printed or not.
+     */
+    protected boolean printedAnnotationFieldHeading = false;
+
+    /**
+     * To check whether the repeated annotations is documented or not.
+     */
+    private boolean isAnnotationDocumented = false;
+
+    /**
+     * To check whether the container annotations is documented or not.
+     */
+    private boolean isContainerDocumented = false;
+
+    HtmlTree fixedNavDiv = new HtmlTree(HtmlTag.DIV);
+
+    final static Pattern IMPROPER_HTML_CHARS = Pattern.compile(".*[&<>].*");
+
+    /**
+     * Constructor to construct the HtmlStandardWriter object.
+     *
+     * @param path File to be generated.
+     */
+    public HtmlDocletWriter(HtmlConfiguration configuration, DocPath path) {
+        super(configuration, path);
+        this.configuration = configuration;
+        this.contents = configuration.contents;
+        this.messages = configuration.messages;
+        this.resources = configuration.resources;
+        this.utils = configuration.utils;
+        this.path = path;
+        this.pathToRoot = path.parent().invert();
+        this.filename = path.basename();
+    }
+
+    /**
+     * Replace {&#064;docRoot} tag used in options that accept HTML text, such
+     * as -header, -footer, -top and -bottom, and when converting a relative
+     * HREF where commentTagsToString inserts a {&#064;docRoot} where one was
+     * missing.  (Also see DocRootTaglet for {&#064;docRoot} tags in doc
+     * comments.)
+     * <p>
+     * Replace {&#064;docRoot} tag in htmlstr with the relative path to the
+     * destination directory from the directory where the file is being
+     * written, looping to handle all such tags in htmlstr.
+     * <p>
+     * For example, for "-d docs" and -header containing {&#064;docRoot}, when
+     * the HTML page for source file p/C1.java is being generated, the
+     * {&#064;docRoot} tag would be inserted into the header as "../",
+     * the relative path from docs/p/ to docs/ (the document root).
+     * <p>
+     * Note: This doc comment was written with '&amp;#064;' representing '@'
+     * to prevent the inline tag from being interpreted.
+     */
+    public String replaceDocRootDir(String htmlstr) {
+        // Return if no inline tags exist
+        int index = htmlstr.indexOf("{@");
+        if (index < 0) {
+            return htmlstr;
+        }
+        Matcher docrootMatcher = docrootPattern.matcher(htmlstr);
+        if (!docrootMatcher.find()) {
+            return htmlstr;
+        }
+        StringBuilder buf = new StringBuilder();
+        int prevEnd = 0;
+        do {
+            int match = docrootMatcher.start();
+            // append htmlstr up to start of next {@docroot}
+            buf.append(htmlstr.substring(prevEnd, match));
+            prevEnd = docrootMatcher.end();
+            if (configuration.docrootparent.length() > 0 && htmlstr.startsWith("/..", prevEnd)) {
+                // Insert the absolute link if {@docRoot} is followed by "/..".
+                buf.append(configuration.docrootparent);
+                prevEnd += 3;
+            } else {
+                // Insert relative path where {@docRoot} was located
+                buf.append(pathToRoot.isEmpty() ? "." : pathToRoot.getPath());
+            }
+            // Append slash if next character is not a slash
+            if (prevEnd < htmlstr.length() && htmlstr.charAt(prevEnd) != '/') {
+                buf.append('/');
+            }
+        } while (docrootMatcher.find());
+        buf.append(htmlstr.substring(prevEnd));
+        return buf.toString();
+    }
+    //where:
+        // Note: {@docRoot} is not case sensitive when passed in w/command line option:
+        private static final Pattern docrootPattern =
+                Pattern.compile(Pattern.quote("{@docroot}"), Pattern.CASE_INSENSITIVE);
+
+    /**
+     * Get the script to show or hide the All classes link.
+     *
+     * @param id id of the element to show or hide
+     * @return a content tree for the script
+     */
+    public Content getAllClassesLinkScript(String id) {
+        HtmlTree script = HtmlTree.SCRIPT();
+        String scriptCode = "<!--\n" +
+                "  allClassesLink = document.getElementById(\"" + id + "\");\n" +
+                "  if(window==top) {\n" +
+                "    allClassesLink.style.display = \"block\";\n" +
+                "  }\n" +
+                "  else {\n" +
+                "    allClassesLink.style.display = \"none\";\n" +
+                "  }\n" +
+                "  //-->\n";
+        Content scriptContent = new RawHtml(scriptCode.replace("\n", DocletConstants.NL));
+        script.addContent(scriptContent);
+        Content div = HtmlTree.DIV(script);
+        Content div_noscript = HtmlTree.DIV(contents.noScriptMessage);
+        Content noScript = HtmlTree.NOSCRIPT(div_noscript);
+        div.addContent(noScript);
+        return div;
+    }
+
+    /**
+     * Add method information.
+     *
+     * @param method the method to be documented
+     * @param dl the content tree to which the method information will be added
+     */
+    private void addMethodInfo(ExecutableElement method, Content dl) {
+        TypeElement enclosing = utils.getEnclosingTypeElement(method);
+        List<? extends TypeMirror> intfacs = enclosing.getInterfaces();
+        ExecutableElement overriddenMethod = utils.overriddenMethod(method);
+        // Check whether there is any implementation or overridden info to be
+        // printed. If no overridden or implementation info needs to be
+        // printed, do not print this section.
+        if ((!intfacs.isEmpty()
+                && new ImplementedMethods(method, this.configuration).build().isEmpty() == false)
+                || overriddenMethod != null) {
+            MethodWriterImpl.addImplementsInfo(this, method, dl);
+            if (overriddenMethod != null) {
+                MethodWriterImpl.addOverridden(this,
+                        utils.overriddenType(method),
+                        overriddenMethod,
+                        dl);
+            }
+        }
+    }
+
+    /**
+     * Adds the tags information.
+     *
+     * @param e the Element for which the tags will be generated
+     * @param htmltree the documentation tree to which the tags will be added
+     */
+    protected void addTagsInfo(Element e, Content htmltree) {
+        if (configuration.nocomment) {
+            return;
+        }
+        Content dl = new HtmlTree(HtmlTag.DL);
+        if (utils.isExecutableElement(e) && !utils.isConstructor(e)) {
+            addMethodInfo((ExecutableElement)e, dl);
+        }
+        Content output = new ContentBuilder();
+        TagletWriter.genTagOutput(configuration.tagletManager, e,
+            configuration.tagletManager.getCustomTaglets(e),
+                getTagletWriterInstance(false), output);
+        dl.addContent(output);
+        htmltree.addContent(dl);
+    }
+
+    /**
+     * Check whether there are any tags for Serialization Overview
+     * section to be printed.
+     *
+     * @param field the VariableElement object to check for tags.
+     * @return true if there are tags to be printed else return false.
+     */
+    protected boolean hasSerializationOverviewTags(VariableElement field) {
+        Content output = new ContentBuilder();
+        TagletWriter.genTagOutput(configuration.tagletManager, field,
+                configuration.tagletManager.getCustomTaglets(field),
+                getTagletWriterInstance(false), output);
+        return !output.isEmpty();
+    }
+
+    /**
+     * Returns a TagletWriter that knows how to write HTML.
+     *
+     * @return a TagletWriter that knows how to write HTML.
+     */
+    public TagletWriter getTagletWriterInstance(boolean isFirstSentence) {
+        return new TagletWriterImpl(this, isFirstSentence);
+    }
+
+    /**
+     * Get Package link, with target frame.
+     *
+     * @param pkg The link will be to the "package-summary.html" page for this package
+     * @param target name of the target frame
+     * @param label tag for the link
+     * @return a content for the target package link
+     */
+    public Content getTargetPackageLink(PackageElement pkg, String target,
+            Content label) {
+        return getHyperLink(pathString(pkg, DocPaths.PACKAGE_SUMMARY), label, "", target);
+    }
+
+    /**
+     * Get Module Package link, with target frame.
+     *
+     * @param pkg the PackageElement
+     * @param target name of the target frame
+     * @param label tag for the link
+     * @param mdle the module being documented
+     * @return a content for the target module packages link
+     */
+    public Content getTargetModulePackageLink(PackageElement pkg, String target,
+            Content label, ModuleElement mdle) {
+        return getHyperLink(pathString(pkg, DocPaths.PACKAGE_SUMMARY),
+                label, "", target);
+    }
+
+    /**
+     * Get Module link, with target frame.
+     *
+     * @param target name of the target frame
+     * @param label tag for the link
+     * @param mdle the module being documented
+     * @return a content for the target module link
+     */
+    public Content getTargetModuleLink(String target, Content label, ModuleElement mdle) {
+        return getHyperLink(pathToRoot.resolve(
+                DocPaths.moduleSummary(mdle)), label, "", target);
+    }
+
+    public void addClassesSummary(SortedSet<TypeElement> classes, String label,
+            String tableSummary, List<String> tableHeader, Content summaryContentTree) {
+        if (!classes.isEmpty()) {
+            Content caption = getTableCaption(new RawHtml(label));
+            Content table = (configuration.isOutputHtml5())
+                    ? HtmlTree.TABLE(HtmlStyle.typeSummary, caption)
+                    : HtmlTree.TABLE(HtmlStyle.typeSummary, tableSummary, caption);
+            table.addContent(getSummaryTableHeader(tableHeader, "col"));
+            Content tbody = new HtmlTree(HtmlTag.TBODY);
+            boolean altColor = true;
+            for (TypeElement te : classes) {
+                if (!utils.isCoreClass(te) ||
+                    !configuration.isGeneratedDoc(te)) {
+                    continue;
+                }
+                Content classContent = getLink(new LinkInfoImpl(
+                        configuration, LinkInfoImpl.Kind.PACKAGE, te));
+                Content tdClass = HtmlTree.TH_ROW_SCOPE(HtmlStyle.colFirst, classContent);
+                HtmlTree tr = HtmlTree.TR(tdClass);
+                tr.addStyle(altColor ? HtmlStyle.altColor : HtmlStyle.rowColor);
+                altColor = !altColor;
+                HtmlTree tdClassDescription = new HtmlTree(HtmlTag.TD);
+                tdClassDescription.addStyle(HtmlStyle.colLast);
+                if (utils.isDeprecated(te)) {
+                    tdClassDescription.addContent(getDeprecatedPhrase(te));
+                    List<? extends DocTree> tags = utils.getDeprecatedTrees(te);
+                    if (!tags.isEmpty()) {
+                        addSummaryDeprecatedComment(te, tags.get(0), tdClassDescription);
+                    }
+                } else {
+                    addSummaryComment(te, tdClassDescription);
+                }
+                tr.addContent(tdClassDescription);
+                tbody.addContent(tr);
+            }
+            table.addContent(tbody);
+            summaryContentTree.addContent(table);
+        }
+    }
+
+    /**
+     * Generates the HTML document tree and prints it out.
+     *
+     * @param metakeywords Array of String keywords for META tag. Each element
+     *                     of the array is assigned to a separate META tag.
+     *                     Pass in null for no array
+     * @param includeScript true if printing windowtitle script
+     *                      false for files that appear in the left-hand frames
+     * @param body the body htmltree to be included in the document
+     * @throws DocFileIOException if there is a problem writing the file
+     */
+    public void printHtmlDocument(List<String> metakeywords, boolean includeScript,
+            Content body) throws DocFileIOException {
+        Content htmlDocType = configuration.isOutputHtml5()
+                ? DocType.HTML5
+                : DocType.TRANSITIONAL;
+        Content htmlComment = new Comment(configuration.getText("doclet.New_Page"));
+        Content head = new HtmlTree(HtmlTag.HEAD);
+        head.addContent(getGeneratedBy(!configuration.notimestamp));
+        head.addContent(getTitle());
+        Content meta = HtmlTree.META("Content-Type", CONTENT_TYPE, configuration.charset);
+        head.addContent(meta);
+        if (!configuration.notimestamp) {
+            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
+            meta = HtmlTree.META(configuration.isOutputHtml5()
+                    ? "dc.created"
+                    : "date", dateFormat.format(new Date()));
+            head.addContent(meta);
+        }
+        if (metakeywords != null) {
+            for (String metakeyword : metakeywords) {
+                meta = HtmlTree.META("keywords", metakeyword);
+                head.addContent(meta);
+            }
+        }
+        addStyleSheetProperties(head);
+        addScriptProperties(head);
+        Content htmlTree = HtmlTree.HTML(configuration.getLocale().getLanguage(),
+                head, body);
+        Content htmlDocument = new HtmlDocument(htmlDocType,
+                htmlComment, htmlTree);
+        write(htmlDocument);
+    }
+
+    /**
+     * Get the window title.
+     *
+     * @param title the title string to construct the complete window title
+     * @return the window title string
+     */
+    public String getWindowTitle(String title) {
+        if (configuration.windowtitle.length() > 0) {
+            title += " (" + configuration.windowtitle  + ")";
+        }
+        return title;
+    }
+
+    /**
+     * Get user specified header and the footer.
+     *
+     * @param header if true print the user provided header else print the
+     * user provided footer.
+     */
+    public Content getUserHeaderFooter(boolean header) {
+        String content;
+        if (header) {
+            content = replaceDocRootDir(configuration.header);
+        } else {
+            if (configuration.footer.length() != 0) {
+                content = replaceDocRootDir(configuration.footer);
+            } else {
+                content = replaceDocRootDir(configuration.header);
+            }
+        }
+        Content rawContent = new RawHtml(content);
+        return rawContent;
+    }
+
+    /**
+     * Adds the user specified top.
+     *
+     * @param htmlTree the content tree to which user specified top will be added
+     */
+    public void addTop(Content htmlTree) {
+        Content top = new RawHtml(replaceDocRootDir(configuration.top));
+        fixedNavDiv.addContent(top);
+    }
+
+    /**
+     * Adds the user specified bottom.
+     *
+     * @param htmlTree the content tree to which user specified bottom will be added
+     */
+    public void addBottom(Content htmlTree) {
+        Content bottom = new RawHtml(replaceDocRootDir(configuration.bottom));
+        Content small = HtmlTree.SMALL(bottom);
+        Content p = HtmlTree.P(HtmlStyle.legalCopy, small);
+        htmlTree.addContent(p);
+    }
+
+    /**
+     * Adds the navigation bar for the Html page at the top and and the bottom.
+     *
+     * @param header If true print navigation bar at the top of the page else
+     * @param htmlTree the HtmlTree to which the nav links will be added
+     */
+    protected void addNavLinks(boolean header, Content htmlTree) {
+        if (!configuration.nonavbar) {
+            Content tree = (configuration.allowTag(HtmlTag.NAV))
+                    ? HtmlTree.NAV()
+                    : htmlTree;
+            String allClassesId = "allclasses_";
+            HtmlTree navDiv = new HtmlTree(HtmlTag.DIV);
+            fixedNavDiv.addStyle(HtmlStyle.fixedNav);
+            Content skipNavLinks = configuration.getContent("doclet.Skip_navigation_links");
+            if (header) {
+                fixedNavDiv.addContent(HtmlConstants.START_OF_TOP_NAVBAR);
+                navDiv.addStyle(HtmlStyle.topNav);
+                allClassesId += "navbar_top";
+                Content a = getMarkerAnchor(SectionName.NAVBAR_TOP);
+                //WCAG - Hyperlinks should contain text or an image with alt text - for AT tools
+                navDiv.addContent(a);
+                Content skipLinkContent = HtmlTree.DIV(HtmlStyle.skipNav, getHyperLink(
+                    getDocLink(SectionName.SKIP_NAVBAR_TOP), skipNavLinks,
+                    skipNavLinks.toString(), ""));
+                navDiv.addContent(skipLinkContent);
+            } else {
+                tree.addContent(HtmlConstants.START_OF_BOTTOM_NAVBAR);
+                navDiv.addStyle(HtmlStyle.bottomNav);
+                allClassesId += "navbar_bottom";
+                Content a = getMarkerAnchor(SectionName.NAVBAR_BOTTOM);
+                navDiv.addContent(a);
+                Content skipLinkContent = HtmlTree.DIV(HtmlStyle.skipNav, getHyperLink(
+                    getDocLink(SectionName.SKIP_NAVBAR_BOTTOM), skipNavLinks,
+                    skipNavLinks.toString(), ""));
+                navDiv.addContent(skipLinkContent);
+            }
+            if (header) {
+                navDiv.addContent(getMarkerAnchor(SectionName.NAVBAR_TOP_FIRSTROW));
+            } else {
+                navDiv.addContent(getMarkerAnchor(SectionName.NAVBAR_BOTTOM_FIRSTROW));
+            }
+            HtmlTree navList = new HtmlTree(HtmlTag.UL);
+            navList.addStyle(HtmlStyle.navList);
+            navList.addAttr(HtmlAttr.TITLE,
+                            configuration.getText("doclet.Navigation"));
+            if (configuration.createoverview) {
+                navList.addContent(getNavLinkContents());
+            }
+            if (configuration.showModules) {
+                if (configuration.modules.size() == 1) {
+                    navList.addContent(getNavLinkModule(configuration.modules.first()));
+                } else if (!configuration.modules.isEmpty()) {
+                    navList.addContent(getNavLinkModule());
+                }
+            }
+            if (configuration.packages.size() == 1) {
+                navList.addContent(getNavLinkPackage(configuration.packages.first()));
+            } else if (!configuration.packages.isEmpty()) {
+                navList.addContent(getNavLinkPackage());
+            }
+            navList.addContent(getNavLinkClass());
+            if(configuration.classuse) {
+                navList.addContent(getNavLinkClassUse());
+            }
+            if(configuration.createtree) {
+                navList.addContent(getNavLinkTree());
+            }
+            if(!(configuration.nodeprecated ||
+                     configuration.nodeprecatedlist)) {
+                navList.addContent(getNavLinkDeprecated());
+            }
+            if(configuration.createindex) {
+                navList.addContent(getNavLinkIndex());
+            }
+            if (!configuration.nohelp) {
+                navList.addContent(getNavLinkHelp());
+            }
+            navDiv.addContent(navList);
+            Content aboutDiv = HtmlTree.DIV(HtmlStyle.aboutLanguage, getUserHeaderFooter(header));
+            navDiv.addContent(aboutDiv);
+            if (header) {
+                fixedNavDiv.addContent(navDiv);
+            } else {
+                tree.addContent(navDiv);
+            }
+            Content ulNav = HtmlTree.UL(HtmlStyle.navList, getNavLinkPrevious(), getNavLinkNext());
+            Content subDiv = HtmlTree.DIV(HtmlStyle.subNav, ulNav);
+            if (configuration.frames) {
+                Content ulFrames = HtmlTree.UL(HtmlStyle.navList,
+                    getNavShowLists(), getNavHideLists(filename));
+                subDiv.addContent(ulFrames);
+            }
+            HtmlTree ulAllClasses = HtmlTree.UL(HtmlStyle.navList, getNavLinkClassIndex());
+            ulAllClasses.addAttr(HtmlAttr.ID, allClassesId);
+            subDiv.addContent(ulAllClasses);
+            if (header && configuration.createindex) {
+                String searchValueId = "search";
+                String reset = "reset";
+                HtmlTree inputText = HtmlTree.INPUT("text", searchValueId, searchValueId);
+                HtmlTree inputReset = HtmlTree.INPUT(reset, reset, reset);
+                Content searchTxt = configuration.getContent("doclet.search");
+                HtmlTree liInput = HtmlTree.LI(HtmlTree.LABEL(searchValueId, searchTxt));
+                liInput.addContent(inputText);
+                liInput.addContent(inputReset);
+                HtmlTree ulSearch = HtmlTree.UL(HtmlStyle.navListSearch, liInput);
+                subDiv.addContent(ulSearch);
+            }
+            subDiv.addContent(getAllClassesLinkScript(allClassesId));
+            addSummaryDetailLinks(subDiv);
+            if (header) {
+                subDiv.addContent(getMarkerAnchor(SectionName.SKIP_NAVBAR_TOP));
+                fixedNavDiv.addContent(subDiv);
+                fixedNavDiv.addContent(HtmlConstants.END_OF_TOP_NAVBAR);
+                tree.addContent(fixedNavDiv);
+                HtmlTree paddingDiv = HtmlTree.DIV(HtmlStyle.navPadding, Contents.SPACE);
+                tree.addContent(paddingDiv);
+                HtmlTree scriptTree = HtmlTree.SCRIPT();
+                String scriptCode = "<!--\n"
+                        + "$('.navPadding').css('padding-top', $('.fixedNav').css(\"height\"));\n"
+                        + "//-->\n";
+                RawHtml scriptContent = new RawHtml(scriptCode.replace("\n", DocletConstants.NL));
+                scriptTree.addContent(scriptContent);
+                tree.addContent(scriptTree);
+            } else {
+                subDiv.addContent(getMarkerAnchor(SectionName.SKIP_NAVBAR_BOTTOM));
+                tree.addContent(subDiv);
+                tree.addContent(HtmlConstants.END_OF_BOTTOM_NAVBAR);
+            }
+            if (configuration.allowTag(HtmlTag.NAV)) {
+                htmlTree.addContent(tree);
+            }
+        }
+    }
+
+    /**
+     * Get the word "NEXT" to indicate that no link is available.  Override
+     * this method to customize next link.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkNext() {
+        return getNavLinkNext(null);
+    }
+
+    /**
+     * Get the word "PREV" to indicate that no link is available.  Override
+     * this method to customize prev link.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkPrevious() {
+        return getNavLinkPrevious(null);
+    }
+
+    /**
+     * Do nothing. This is the default method.
+     */
+    protected void addSummaryDetailLinks(Content navDiv) {
+    }
+
+    /**
+     * Get link to the "overview-summary.html" page.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkContents() {
+        Content linkContent = getHyperLink(pathToRoot.resolve(DocPaths.overviewSummary(configuration.frames)),
+                contents.overviewLabel, "", "");
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get link to the module summary page for the module passed.
+     *
+     * @param mdle Module to which link will be generated
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkModule(ModuleElement mdle) {
+        Content linkContent = getModuleLink(mdle, contents.moduleLabel);
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get the word "Module", to indicate that link is not available here.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkModule() {
+        Content li = HtmlTree.LI(contents.moduleLabel);
+        return li;
+    }
+
+    /**
+     * Get link to the "package-summary.html" page for the package passed.
+     *
+     * @param pkg Package to which link will be generated
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkPackage(PackageElement pkg) {
+        Content linkContent = getPackageLink(pkg, contents.packageLabel);
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get the word "Package" , to indicate that link is not available here.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkPackage() {
+        Content li = HtmlTree.LI(contents.packageLabel);
+        return li;
+    }
+
+    /**
+     * Get the word "Use", to indicate that link is not available.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkClassUse() {
+        Content li = HtmlTree.LI(contents.useLabel);
+        return li;
+    }
+
+    /**
+     * Get link for previous file.
+     *
+     * @param prev File name for the prev link
+     * @return a content tree for the link
+     */
+    public Content getNavLinkPrevious(DocPath prev) {
+        Content li;
+        if (prev != null) {
+            li = HtmlTree.LI(getHyperLink(prev, contents.prevLabel, "", ""));
+        }
+        else
+            li = HtmlTree.LI(contents.prevLabel);
+        return li;
+    }
+
+    /**
+     * Get link for next file.  If next is null, just print the label
+     * without linking it anywhere.
+     *
+     * @param next File name for the next link
+     * @return a content tree for the link
+     */
+    public Content getNavLinkNext(DocPath next) {
+        Content li;
+        if (next != null) {
+            li = HtmlTree.LI(getHyperLink(next, contents.nextLabel, "", ""));
+        }
+        else
+            li = HtmlTree.LI(contents.nextLabel);
+        return li;
+    }
+
+    /**
+     * Get "FRAMES" link, to switch to the frame version of the output.
+     *
+     * @param link File to be linked, "index.html"
+     * @return a content tree for the link
+     */
+    protected Content getNavShowLists(DocPath link) {
+        DocLink dl = new DocLink(link, path.getPath(), null);
+        Content framesContent = getHyperLink(dl, contents.framesLabel, "", "_top");
+        Content li = HtmlTree.LI(framesContent);
+        return li;
+    }
+
+    /**
+     * Get "FRAMES" link, to switch to the frame version of the output.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavShowLists() {
+        return getNavShowLists(pathToRoot.resolve(DocPaths.INDEX));
+    }
+
+    /**
+     * Get "NO FRAMES" link, to switch to the non-frame version of the output.
+     *
+     * @param link File to be linked
+     * @return a content tree for the link
+     */
+    protected Content getNavHideLists(DocPath link) {
+        Content noFramesContent = getHyperLink(link, contents.noFramesLabel, "", "_top");
+        Content li = HtmlTree.LI(noFramesContent);
+        return li;
+    }
+
+    /**
+     * Get "Tree" link in the navigation bar. If there is only one package
+     * specified on the command line, then the "Tree" link will be to the
+     * only "package-tree.html" file otherwise it will be to the
+     * "overview-tree.html" file.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkTree() {
+        List<PackageElement> packages = new ArrayList<>(configuration.getSpecifiedPackageElements());
+        DocPath docPath = packages.size() == 1 && configuration.getSpecifiedTypeElements().isEmpty()
+                ? pathString(packages.get(0), DocPaths.PACKAGE_TREE)
+                : pathToRoot.resolve(DocPaths.OVERVIEW_TREE);
+        return HtmlTree.LI(getHyperLink(docPath, contents.treeLabel, "", ""));
+    }
+
+    /**
+     * Get the overview tree link for the main tree.
+     *
+     * @param label the label for the link
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkMainTree(String label) {
+        Content mainTreeContent = getHyperLink(pathToRoot.resolve(DocPaths.OVERVIEW_TREE),
+                new StringContent(label));
+        Content li = HtmlTree.LI(mainTreeContent);
+        return li;
+    }
+
+    /**
+     * Get the word "Class", to indicate that class link is not available.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkClass() {
+        Content li = HtmlTree.LI(contents.classLabel);
+        return li;
+    }
+
+    /**
+     * Get "Deprecated" API link in the navigation bar.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkDeprecated() {
+        Content linkContent = getHyperLink(pathToRoot.resolve(DocPaths.DEPRECATED_LIST),
+                contents.deprecatedLabel, "", "");
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get link for generated index. If the user has used "-splitindex"
+     * command line option, then link to file "index-files/index-1.html" is
+     * generated otherwise link to file "index-all.html" is generated.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkClassIndex() {
+        Content allClassesContent = getHyperLink(pathToRoot.resolve(
+                DocPaths.AllClasses(configuration.frames)),
+                contents.allClassesLabel, "", "");
+        Content li = HtmlTree.LI(allClassesContent);
+        return li;
+    }
+
+    /**
+     * Get link for generated class index.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkIndex() {
+        Content linkContent = getHyperLink(pathToRoot.resolve(
+                (configuration.splitindex
+                    ? DocPaths.INDEX_FILES.resolve(DocPaths.indexN(1))
+                    : DocPaths.INDEX_ALL)),
+            contents.indexLabel, "", "");
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Get help file link. If user has provided a help file, then generate a
+     * link to the user given file, which is already copied to current or
+     * destination directory.
+     *
+     * @return a content tree for the link
+     */
+    protected Content getNavLinkHelp() {
+        String helpfile = configuration.helpfile;
+        DocPath helpfilenm;
+        if (helpfile.isEmpty()) {
+            helpfilenm = DocPaths.HELP_DOC;
+        } else {
+            DocFile file = DocFile.createFileForInput(configuration, helpfile);
+            helpfilenm = DocPath.create(file.getName());
+        }
+        Content linkContent = getHyperLink(pathToRoot.resolve(helpfilenm),
+                contents.helpLabel, "", "");
+        Content li = HtmlTree.LI(linkContent);
+        return li;
+    }
+
+    /**
+     * Add gap between navigation bar elements.
+     *
+     * @param liNav the content tree to which the gap will be added
+     */
+    protected void addNavGap(Content liNav) {
+        liNav.addContent(Contents.SPACE);
+        liNav.addContent("|");
+        liNav.addContent(Contents.SPACE);
+    }
+
+    /**
+     * Get summary table header.
+     *
+     * @param header the header for the table
+     * @param scope the scope of the headers
+     * @return a content tree for the header
+     */
+    public Content getSummaryTableHeader(List<String> header, String scope) {
+        Content tr = new HtmlTree(HtmlTag.TR);
+        final int size = header.size();
+        Content tableHeader;
+        if (size == 2) {
+            tableHeader = new StringContent(header.get(0));
+            tr.addContent(HtmlTree.TH(HtmlStyle.colFirst, scope, tableHeader));
+            tableHeader = new StringContent(header.get(1));
+            tr.addContent(HtmlTree.TH(HtmlStyle.colLast, scope, tableHeader));
+            return tr;
+        }
+        for (int i = 0; i < size; i++) {
+            tableHeader = new StringContent(header.get(i));
+            if (i == 0)
+                tr.addContent(HtmlTree.TH(HtmlStyle.colFirst, scope, tableHeader));
+            else if (i == 1)
+                tr.addContent(HtmlTree.TH(HtmlStyle.colSecond, scope, tableHeader));
+            else if (i == (size - 1))
+                tr.addContent(HtmlTree.TH(HtmlStyle.colLast, scope, tableHeader));
+            else
+                tr.addContent(HtmlTree.TH(scope, tableHeader));
+        }
+        return tr;
+    }
+
+    /**
+     * Get table caption.
+     *
+     * @param rawText the caption for the table which could be raw Html
+     * @return a content tree for the caption
+     */
+    public Content getTableCaption(Content title) {
+        Content captionSpan = HtmlTree.SPAN(title);
+        Content space = Contents.SPACE;
+        Content tabSpan = HtmlTree.SPAN(HtmlStyle.tabEnd, space);
+        Content caption = HtmlTree.CAPTION(captionSpan);
+        caption.addContent(tabSpan);
+        return caption;
+    }
+
+    /**
+     * Get the marker anchor which will be added to the documentation tree.
+     *
+     * @param anchorName the anchor name attribute
+     * @return a content tree for the marker anchor
+     */
+    public Content getMarkerAnchor(String anchorName) {
+        return getMarkerAnchor(getName(anchorName), null);
+    }
+
+    /**
+     * Get the marker anchor which will be added to the documentation tree.
+     *
+     * @param sectionName the section name anchor attribute for page
+     * @return a content tree for the marker anchor
+     */
+    public Content getMarkerAnchor(SectionName sectionName) {
+        return getMarkerAnchor(sectionName.getName(), null);
+    }
+
+    /**
+     * Get the marker anchor which will be added to the documentation tree.
+     *
+     * @param sectionName the section name anchor attribute for page
+     * @param anchorName the anchor name combined with section name attribute for the page
+     * @return a content tree for the marker anchor
+     */
+    public Content getMarkerAnchor(SectionName sectionName, String anchorName) {
+        return getMarkerAnchor(sectionName.getName() + getName(anchorName), null);
+    }
+
+    /**
+     * Get the marker anchor which will be added to the documentation tree.
+     *
+     * @param anchorName the anchor name or id attribute
+     * @param anchorContent the content that should be added to the anchor
+     * @return a content tree for the marker anchor
+     */
+    public Content getMarkerAnchor(String anchorName, Content anchorContent) {
+        if (anchorContent == null)
+            anchorContent = new Comment(" ");
+        Content markerAnchor = HtmlTree.A(configuration.htmlVersion, anchorName, anchorContent);
+        return markerAnchor;
+    }
+
+    /**
+     * Returns a packagename content.
+     *
+     * @param packageElement the package to check
+     * @return package name content
+     */
+    public Content getPackageName(PackageElement packageElement) {
+        return packageElement == null || packageElement.isUnnamed()
+                ? contents.defaultPackageLabel
+                : getPackageLabel(packageElement.getQualifiedName());
+    }
+
+    /**
+     * Returns a package name label.
+     *
+     * @param packageName the package name
+     * @return the package name content
+     */
+    public Content getPackageLabel(CharSequence packageName) {
+        return new StringContent(packageName);
+    }
+
+    /**
+     * Return the path to the class page for a typeElement.
+     *
+     * @param te   TypeElement for which the path is requested.
+     * @param name Name of the file(doesn't include path).
+     */
+    protected DocPath pathString(TypeElement te, DocPath name) {
+        return pathString(utils.containingPackage(te), name);
+    }
+
+    /**
+     * Return path to the given file name in the given package. So if the name
+     * passed is "Object.html" and the name of the package is "java.lang", and
+     * if the relative path is "../.." then returned string will be
+     * "../../java/lang/Object.html"
+     *
+     * @param packageElement Package in which the file name is assumed to be.
+     * @param name File name, to which path string is.
+     */
+    protected DocPath pathString(PackageElement packageElement, DocPath name) {
+        return pathToRoot.resolve(DocPath.forPackage(packageElement).resolve(name));
+    }
+
+    /**
+     * Given a package, return the name to be used in HTML anchor tag.
+     * @param packageElement the package.
+     * @return the name to be used in HTML anchor tag.
+     */
+    public String getPackageAnchorName(PackageElement packageElement) {
+        return packageElement == null || packageElement.isUnnamed()
+                ? SectionName.UNNAMED_PACKAGE_ANCHOR.getName()
+                : utils.getPackageName(packageElement);
+    }
+
+    /**
+     * Return the link to the given package.
+     *
+     * @param packageElement the package to link to.
+     * @param label the label for the link.
+     * @return a content tree for the package link.
+     */
+    public Content getPackageLink(PackageElement packageElement, CharSequence label) {
+        return getPackageLink(packageElement, new StringContent(label));
+    }
+
+    public Content getPackageLink(PackageElement packageElement) {
+        StringContent content =  packageElement.isUnnamed()
+                ? new StringContent()
+                : new StringContent(utils.getPackageName(packageElement));
+        return getPackageLink(packageElement, content);
+    }
+
+    /**
+     * Return the link to the given package.
+     *
+     * @param packageElement the package to link to.
+     * @param label the label for the link.
+     * @return a content tree for the package link.
+     */
+    public Content getPackageLink(PackageElement packageElement, Content label) {
+        boolean included = packageElement != null && utils.isIncluded(packageElement);
+        if (!included) {
+            for (PackageElement p : configuration.packages) {
+                if (p.equals(packageElement)) {
+                    included = true;
+                    break;
+                }
+            }
+        }
+        if (included || packageElement == null) {
+            return getHyperLink(pathString(packageElement, DocPaths.PACKAGE_SUMMARY),
+                    label);
+        } else {
+            DocLink crossPkgLink = getCrossPackageLink(utils.getPackageName(packageElement));
+            if (crossPkgLink != null) {
+                return getHyperLink(crossPkgLink, label);
+            } else {
+                return label;
+            }
+        }
+    }
+
+    /**
+     * Get Module link.
+     *
+     * @param mdle the module being documented
+     * @param label tag for the link
+     * @return a content for the module link
+     */
+    public Content getModuleLink(ModuleElement mdle, Content label) {
+        boolean included = utils.isIncluded(mdle);
+        return (included)
+                ? getHyperLink(pathToRoot.resolve(DocPaths.moduleSummary(mdle)), label, "", "")
+                : label;
+    }
+
+    public Content interfaceName(TypeElement typeElement, boolean qual) {
+        Content name = new StringContent((qual)
+                ? typeElement.getQualifiedName()
+                : utils.getSimpleName(typeElement));
+        return (utils.isInterface(typeElement)) ?  HtmlTree.SPAN(HtmlStyle.interfaceName, name) : name;
+    }
+
+    /**
+     * Add the link to the content tree.
+     *
+     * @param typeElement program element typeElement for which the link will be added
+     * @param label label for the link
+     * @param htmltree the content tree to which the link will be added
+     */
+    public void addSrcLink(Element typeElement, Content label, Content htmltree) {
+        if (typeElement == null) {
+            return;
+        }
+        TypeElement te = utils.getEnclosingTypeElement(typeElement);
+        if (te == null) {
+            // must be a typeElement since in has no containing class.
+            te = (TypeElement) typeElement;
+        }
+        DocPath href = pathToRoot
+                .resolve(DocPaths.SOURCE_OUTPUT)
+                .resolve(DocPath.forClass(utils, te));
+        Content linkContent = getHyperLink(href
+                .fragment(SourceToHTMLConverter.getAnchorName(utils, typeElement)), label, "", "");
+        htmltree.addContent(linkContent);
+    }
+
+    /**
+     * Return the link to the given class.
+     *
+     * @param linkInfo the information about the link.
+     *
+     * @return the link for the given class.
+     */
+    public Content getLink(LinkInfoImpl linkInfo) {
+        LinkFactoryImpl factory = new LinkFactoryImpl(this);
+        return factory.getLink(linkInfo);
+    }
+
+    /**
+     * Return the type parameters for the given class.
+     *
+     * @param linkInfo the information about the link.
+     * @return the type for the given class.
+     */
+    public Content getTypeParameterLinks(LinkInfoImpl linkInfo) {
+        LinkFactoryImpl factory = new LinkFactoryImpl(this);
+        return factory.getTypeParameterLinks(linkInfo, false);
+    }
+
+    /*************************************************************
+     * Return a class cross link to external class documentation.
+     * The name must be fully qualified to determine which package
+     * the class is in.  The -link option does not allow users to
+     * link to external classes in the "default" package.
+     *
+     * @param qualifiedClassName the qualified name of the external class.
+     * @param refMemName the name of the member being referenced.  This should
+     * be null or empty string if no member is being referenced.
+     * @param label the label for the external link.
+     * @param strong true if the link should be strong.
+     * @param style the style of the link.
+     * @param code true if the label should be code font.
+     */
+    public Content getCrossClassLink(String qualifiedClassName, String refMemName,
+                                    Content label, boolean strong, String style,
+                                    boolean code) {
+        String className = "";
+        String packageName = qualifiedClassName == null ? "" : qualifiedClassName;
+        int periodIndex;
+        while ((periodIndex = packageName.lastIndexOf('.')) != -1) {
+            className = packageName.substring(periodIndex + 1, packageName.length()) +
+                (className.length() > 0 ? "." + className : "");
+            Content defaultLabel = new StringContent(className);
+            if (code)
+                defaultLabel = HtmlTree.CODE(defaultLabel);
+            packageName = packageName.substring(0, periodIndex);
+            if (getCrossPackageLink(packageName) != null) {
+                /*
+                The package exists in external documentation, so link to the external
+                class (assuming that it exists).  This is definitely a limitation of
+                the -link option.  There are ways to determine if an external package
+                exists, but no way to determine if the external class exists.  We just
+                have to assume that it does.
+                */
+                DocLink link = configuration.extern.getExternalLink(packageName, pathToRoot,
+                                className + ".html", refMemName);
+                return getHyperLink(link,
+                    (label == null) || label.isEmpty() ? defaultLabel : label,
+                    strong, style,
+                    configuration.getText("doclet.Href_Class_Or_Interface_Title", packageName),
+                    "");
+            }
+        }
+        return null;
+    }
+
+    public boolean isClassLinkable(TypeElement typeElement) {
+        if (utils.isIncluded(typeElement)) {
+            return configuration.isGeneratedDoc(typeElement);
+        }
+        return configuration.extern.isExternal(typeElement);
+    }
+
+    public DocLink getCrossPackageLink(String pkgName) {
+        return configuration.extern.getExternalLink(pkgName, pathToRoot,
+            DocPaths.PACKAGE_SUMMARY.getPath());
+    }
+
+    /**
+     * Get the class link.
+     *
+     * @param context the id of the context where the link will be added
+     * @param element to link to
+     * @return a content tree for the link
+     */
+    public Content getQualifiedClassLink(LinkInfoImpl.Kind context, Element element) {
+        LinkInfoImpl linkInfoImpl = new LinkInfoImpl(configuration, context, (TypeElement)element);
+        return getLink(linkInfoImpl.label(utils.getFullyQualifiedName(element)));
+    }
+
+    /**
+     * Add the class link.
+     *
+     * @param context the id of the context where the link will be added
+     * @param typeElement to link to
+     * @param contentTree the content tree to which the link will be added
+     */
+    public void addPreQualifiedClassLink(LinkInfoImpl.Kind context, TypeElement typeElement, Content contentTree) {
+        addPreQualifiedClassLink(context, typeElement, false, contentTree);
+    }
+
+    /**
+     * Retrieve the class link with the package portion of the label in
+     * plain text.  If the qualifier is excluded, it will not be included in the
+     * link label.
+     *
+     * @param typeElement the class to link to.
+     * @param isStrong true if the link should be strong.
+     * @return the link with the package portion of the label in plain text.
+     */
+    public Content getPreQualifiedClassLink(LinkInfoImpl.Kind context,
+            TypeElement typeElement, boolean isStrong) {
+        ContentBuilder classlink = new ContentBuilder();
+        PackageElement pkg = utils.containingPackage(typeElement);
+        if (pkg != null && ! configuration.shouldExcludeQualifier(pkg.getSimpleName().toString())) {
+            classlink.addContent(getEnclosingPackageName(typeElement));
+        }
+        classlink.addContent(getLink(new LinkInfoImpl(configuration,
+                context, typeElement).label(utils.getSimpleName(typeElement)).strong(isStrong)));
+        return classlink;
+    }
+
+    /**
+     * Add the class link with the package portion of the label in
+     * plain text. If the qualifier is excluded, it will not be included in the
+     * link label.
+     *
+     * @param context the id of the context where the link will be added
+     * @param typeElement the class to link to
+     * @param isStrong true if the link should be strong
+     * @param contentTree the content tree to which the link with be added
+     */
+    public void addPreQualifiedClassLink(LinkInfoImpl.Kind context,
+            TypeElement typeElement, boolean isStrong, Content contentTree) {
+        PackageElement pkg = utils.containingPackage(typeElement);
+        if(pkg != null && ! configuration.shouldExcludeQualifier(pkg.getSimpleName().toString())) {
+            contentTree.addContent(getEnclosingPackageName(typeElement));
+        }
+        LinkInfoImpl linkinfo = new LinkInfoImpl(configuration, context, typeElement)
+                .label(utils.getSimpleName(typeElement))
+                .strong(isStrong);
+        Content link = getLink(linkinfo);
+        contentTree.addContent(link);
+    }
+
+    /**
+     * Add the class link, with only class name as the strong link and prefixing
+     * plain package name.
+     *
+     * @param context the id of the context where the link will be added
+     * @param typeElement the class to link to
+     * @param contentTree the content tree to which the link with be added
+     */
+    public void addPreQualifiedStrongClassLink(LinkInfoImpl.Kind context, TypeElement typeElement, Content contentTree) {
+        addPreQualifiedClassLink(context, typeElement, true, contentTree);
+    }
+
+    /**
+     * Get the link for the given member.
+     *
+     * @param context the id of the context where the link will be added
+     * @param element the member being linked to
+     * @param label the label for the link
+     * @return a content tree for the element link
+     */
+    public Content getDocLink(LinkInfoImpl.Kind context, Element element, CharSequence label) {
+        return getDocLink(context, utils.getEnclosingTypeElement(element), element,
+                new StringContent(label));
+    }
+
+    /**
+     * Return the link for the given member.
+     *
+     * @param context the id of the context where the link will be printed.
+     * @param element the member being linked to.
+     * @param label the label for the link.
+     * @param strong true if the link should be strong.
+     * @return the link for the given member.
+     */
+    public Content getDocLink(LinkInfoImpl.Kind context, Element element, CharSequence label,
+            boolean strong) {
+        return getDocLink(context, utils.getEnclosingTypeElement(element), element, label, strong);
+    }
+
+    /**
+     * Return the link for the given member.
+     *
+     * @param context the id of the context where the link will be printed.
+     * @param typeElement the typeElement that we should link to.  This is not
+                 necessarily equal to element.containingClass().  We may be
+                 inheriting comments.
+     * @param element the member being linked to.
+     * @param label the label for the link.
+     * @param strong true if the link should be strong.
+     * @return the link for the given member.
+     */
+    public Content getDocLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element element,
+            CharSequence label, boolean strong) {
+        return getDocLink(context, typeElement, element, label, strong, false);
+    }
+
+    public Content getDocLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element element,
+            Content label, boolean strong) {
+        return getDocLink(context, typeElement, element, label, strong, false);
+    }
+
+   /**
+     * Return the link for the given member.
+     *
+     * @param context the id of the context where the link will be printed.
+     * @param typeElement the typeElement that we should link to.  This is not
+                 necessarily equal to element.containingClass().  We may be
+                 inheriting comments.
+     * @param element the member being linked to.
+     * @param label the label for the link.
+     * @param strong true if the link should be strong.
+     * @param isProperty true if the element parameter is a JavaFX property.
+     * @return the link for the given member.
+     */
+    public Content getDocLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element element,
+            CharSequence label, boolean strong, boolean isProperty) {
+        return getDocLink(context, typeElement, element, new StringContent(check(label)), strong, isProperty);
+    }
+
+    CharSequence check(CharSequence s) {
+        Matcher m = IMPROPER_HTML_CHARS.matcher(s);
+        if (m.matches()) {
+            throw new IllegalArgumentException(s.toString());
+        }
+        return s;
+    }
+
+    public Content getDocLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element element,
+            Content label, boolean strong, boolean isProperty) {
+        if (! (utils.isIncluded(element) || utils.isLinkable(typeElement))) {
+            return label;
+        } else if (utils.isExecutableElement(element)) {
+            ExecutableElement ee = (ExecutableElement)element;
+            return getLink(new LinkInfoImpl(configuration, context, typeElement)
+                .label(label)
+                .where(getName(getAnchor(ee, isProperty)))
+                .strong(strong));
+        } else if (utils.isVariableElement(element) || utils.isTypeElement(element)) {
+            return getLink(new LinkInfoImpl(configuration, context, typeElement)
+                .label(label)
+                .where(getName(element.getSimpleName().toString()))
+                .strong(strong));
+        } else {
+            return label;
+        }
+    }
+
+    /**
+     * Return the link for the given member.
+     *
+     * @param context the id of the context where the link will be added
+     * @param typeElement the typeElement that we should link to.  This is not
+                 necessarily equal to element.containingClass().  We may be
+                 inheriting comments
+     * @param element the member being linked to
+     * @param label the label for the link
+     * @return the link for the given member
+     */
+    public Content getDocLink(LinkInfoImpl.Kind context, TypeElement typeElement, Element element,
+            Content label) {
+        if (! (utils.isIncluded(element) || utils.isLinkable(typeElement))) {
+            return label;
+        } else if (utils.isExecutableElement(element)) {
+            ExecutableElement emd = (ExecutableElement) element;
+            return getLink(new LinkInfoImpl(configuration, context, typeElement)
+                .label(label)
+                .where(getName(getAnchor(emd))));
+        } else if (utils.isVariableElement(element) || utils.isTypeElement(element)) {
+            return getLink(new LinkInfoImpl(configuration, context, typeElement)
+                .label(label).where(getName(element.getSimpleName().toString())));
+        } else {
+            return label;
+        }
+    }
+
+    public String getAnchor(ExecutableElement executableElement) {
+        return getAnchor(executableElement, false);
+    }
+
+    public String getAnchor(ExecutableElement executableElement, boolean isProperty) {
+        if (isProperty) {
+            return executableElement.getSimpleName().toString();
+        }
+        String signature = utils.signature(executableElement);
+        StringBuilder signatureParsed = new StringBuilder();
+        int counter = 0;
+        for (int i = 0; i < signature.length(); i++) {
+            char c = signature.charAt(i);
+            if (c == '<') {
+                counter++;
+            } else if (c == '>') {
+                counter--;
+            } else if (counter == 0) {
+                signatureParsed.append(c);
+            }
+        }
+        return utils.getSimpleName(executableElement) + signatureParsed.toString();
+    }
+
+    public Content seeTagToContent(Element element, DocTree see) {
+
+        Kind kind = see.getKind();
+        if (!(kind == LINK || kind == SEE || kind == LINK_PLAIN)) {
+            return new ContentBuilder();
+        }
+
+        CommentHelper ch = utils.getCommentHelper(element);
+        String tagName = ch.getTagName(see);
+        String seetext = replaceDocRootDir(utils.normalizeNewlines(ch.getText(see)).toString());
+        // Check if @see is an href or "string"
+        if (seetext.startsWith("<") || seetext.startsWith("\"")) {
+            return new RawHtml(seetext);
+        }
+        boolean isLinkPlain = kind == LINK_PLAIN;
+        Content label = plainOrCode(isLinkPlain, new RawHtml(ch.getLabel(configuration, see)));
+
+        //The text from the @see tag.  We will output this text when a label is not specified.
+        Content text = plainOrCode(kind == LINK_PLAIN, new RawHtml(seetext));
+
+        TypeElement refClass = ch.getReferencedClass(configuration, see);
+        String refClassName =  ch.getReferencedClassName(configuration, see);
+        Element refMem =       ch.getReferencedMember(configuration, see);
+        String refMemName =    ch.getReferencedMemberName(see);
+
+        if (refMemName == null && refMem != null) {
+            refMemName = refMem.toString();
+        }
+        if (refClass == null) {
+            //@see is not referencing an included class
+            PackageElement refPackage = ch.getReferencedPackage(configuration, see);
+            if (refPackage != null && utils.isIncluded(refPackage)) {
+                //@see is referencing an included package
+                if (label.isEmpty())
+                    label = plainOrCode(isLinkPlain,
+                            new StringContent(refPackage.getQualifiedName()));
+                return getPackageLink(refPackage, label);
+            } else {
+                // @see is not referencing an included class or package.  Check for cross links.
+                Content classCrossLink;
+                DocLink packageCrossLink = getCrossPackageLink(refClassName);
+                if (packageCrossLink != null) {
+                    // Package cross link found
+                    return getHyperLink(packageCrossLink,
+                        (label.isEmpty() ? text : label));
+                } else if ((classCrossLink = getCrossClassLink(refClassName,
+                        refMemName, label, false, "", !isLinkPlain)) != null) {
+                    // Class cross link found (possibly to a member in the class)
+                    return classCrossLink;
+                } else {
+                    // No cross link found so print warning
+                    messages.warning(ch.getDocTreePath(see),
+                            "doclet.see.class_or_package_not_found",
+                            "@" + tagName,
+                            seetext);
+                    return (label.isEmpty() ? text: label);
+                }
+            }
+        } else if (refMemName == null) {
+            // Must be a class reference since refClass is not null and refMemName is null.
+            if (label.isEmpty()) {
+                /*
+                 * it seems to me this is the right thing to do, but it causes comparator failures.
+                 */
+                if (!configuration.backwardCompatibility) {
+                    StringContent content = utils.isEnclosingPackageIncluded(refClass)
+                            ? new StringContent(utils.getSimpleName(refClass))
+                            : new StringContent(utils.getFullyQualifiedName(refClass));
+                    label = plainOrCode(isLinkPlain, content);
+                } else {
+                    label = plainOrCode(isLinkPlain,
+                            new StringContent(utils.getSimpleName(refClass)));
+                }
+
+            }
+            return getLink(new LinkInfoImpl(configuration, LinkInfoImpl.Kind.DEFAULT, refClass)
+                    .label(label));
+        } else if (refMem == null) {
+            // Must be a member reference since refClass is not null and refMemName is not null.
+            // However, refMem is null, so this referenced member does not exist.
+            return (label.isEmpty() ? text: label);
+        } else {
+            // Must be a member reference since refClass is not null and refMemName is not null.
+            // refMem is not null, so this @see tag must be referencing a valid member.
+            TypeElement containing = utils.getEnclosingTypeElement(refMem);
+            if (ch.getText(see).trim().startsWith("#") &&
+                ! (utils.isPublic(containing) || utils.isLinkable(containing))) {
+                // Since the link is relative and the holder is not even being
+                // documented, this must be an inherited link.  Redirect it.
+                // The current class either overrides the referenced member or
+                // inherits it automatically.
+                if (this instanceof ClassWriterImpl) {
+                    containing = ((ClassWriterImpl) this).getTypeElement();
+                } else if (!utils.isPublic(containing)) {
+                    messages.warning(
+                        ch.getDocTreePath(see), "doclet.see.class_or_package_not_accessible",
+                        tagName, utils.getFullyQualifiedName(containing));
+                } else {
+                    messages.warning(
+                        ch.getDocTreePath(see), "doclet.see.class_or_package_not_found",
+                        tagName, seetext);
+                }
+            }
+            if (configuration.currentTypeElement != containing) {
+                refMemName = (utils.isConstructor(refMem))
+                        ? refMemName
+                        : utils.getSimpleName(containing) + "." + refMemName;
+            }
+            if (utils.isExecutableElement(refMem)) {
+                if (refMemName.indexOf('(') < 0) {
+                    refMemName += utils.makeSignature((ExecutableElement)refMem, true);
+                }
+            }
+
+            text = plainOrCode(kind == LINK_PLAIN, new StringContent(refMemName));
+
+            return getDocLink(LinkInfoImpl.Kind.SEE_TAG, containing,
+                    refMem, (label.isEmpty() ? text: label), false);
+        }
+    }
+
+    private Content plainOrCode(boolean plain, Content body) {
+        return (plain || body.isEmpty()) ? body : HtmlTree.CODE(body);
+    }
+
+    /**
+     * Add the inline comment.
+     *
+     * @param element the Element for which the inline comment will be added
+     * @param tag the inline tag to be added
+     * @param htmltree the content tree to which the comment will be added
+     */
+    public void addInlineComment(Element element, DocTree tag, Content htmltree) {
+        CommentHelper ch = utils.getCommentHelper(element);
+        List<? extends DocTree> description = ch.getDescription(configuration, tag);
+        addCommentTags(element, tag, description, false, false, htmltree);
+    }
+
+    /**
+     * Get the deprecated phrase as content.
+     *
+     * @param e the Element for which the inline deprecated comment will be added
+     * @return a content tree for the deprecated phrase.
+     */
+    public Content getDeprecatedPhrase(Element e) {
+        return (utils.isDeprecatedForRemoval(e))
+                ? contents.deprecatedForRemovalPhrase
+                : contents.deprecatedPhrase;
+    }
+
+    /**
+     * Add the inline deprecated comment.
+     *
+     * @param e the Element for which the inline deprecated comment will be added
+     * @param tag the inline tag to be added
+     * @param htmltree the content tree to which the comment will be added
+     */
+    public void addInlineDeprecatedComment(Element e, DocTree tag, Content htmltree) {
+        CommentHelper ch = utils.getCommentHelper(e);
+        addCommentTags(e, ch.getBody(configuration, tag), true, false, htmltree);
+    }
+
+    /**
+     * Adds the summary content.
+     *
+     * @param element the Element for which the summary will be generated
+     * @param htmltree the documentation tree to which the summary will be added
+     */
+    public void addSummaryComment(Element element, Content htmltree) {
+        addSummaryComment(element, utils.getFirstSentenceTrees(element), htmltree);
+    }
+
+    /**
+     * Adds the summary content.
+     *
+     * @param element the Element for which the summary will be generated
+     * @param firstSentenceTags the first sentence tags for the doc
+     * @param htmltree the documentation tree to which the summary will be added
+     */
+    public void addSummaryComment(Element element, List<? extends DocTree> firstSentenceTags, Content htmltree) {
+        addCommentTags(element, firstSentenceTags, false, true, htmltree);
+    }
+
+    public void addSummaryDeprecatedComment(Element element, DocTree tag, Content htmltree) {
+        CommentHelper ch = utils.getCommentHelper(element);
+        List<? extends DocTree> body = ch.getBody(configuration, tag);
+        addCommentTags(element, ch.getFirstSentenceTrees(configuration, body), true, true, htmltree);
+    }
+
+    /**
+     * Adds the inline comment.
+     *
+     * @param element the Element for which the inline comments will be generated
+     * @param htmltree the documentation tree to which the inline comments will be added
+     */
+    public void addInlineComment(Element element, Content htmltree) {
+        addCommentTags(element, utils.getFullBody(element), false, false, htmltree);
+    }
+
+    /**
+     * Adds the comment tags.
+     *
+     * @param element the Element for which the comment tags will be generated
+     * @param tags the first sentence tags for the doc
+     * @param depr true if it is deprecated
+     * @param first true if the first sentence tags should be added
+     * @param htmltree the documentation tree to which the comment tags will be added
+     */
+    private void addCommentTags(Element element, List<? extends DocTree> tags, boolean depr,
+            boolean first, Content htmltree) {
+        addCommentTags(element, null, tags, depr, first, htmltree);
+    }
+
+    /**
+     * Adds the comment tags.
+     *
+     * @param element for which the comment tags will be generated
+     * @param holderTag the block tag context for the inline tags
+     * @param tags the first sentence tags for the doc
+     * @param depr true if it is deprecated
+     * @param first true if the first sentence tags should be added
+     * @param htmltree the documentation tree to which the comment tags will be added
+     */
+    private void addCommentTags(Element element, DocTree holderTag, List<? extends DocTree> tags, boolean depr,
+            boolean first, Content htmltree) {
+        if(configuration.nocomment){
+            return;
+        }
+        Content div;
+        Content result = commentTagsToContent(null, element, tags, first);
+        if (depr) {
+            Content italic = HtmlTree.SPAN(HtmlStyle.deprecationComment, result);
+            div = HtmlTree.DIV(HtmlStyle.block, italic);
+            htmltree.addContent(div);
+        }
+        else {
+            div = HtmlTree.DIV(HtmlStyle.block, result);
+            htmltree.addContent(div);
+        }
+        if (tags.isEmpty()) {
+            htmltree.addContent(Contents.SPACE);
+        }
+    }
+
+    boolean ignoreNonInlineTag(DocTree dtree) {
+        Name name = null;
+        if (dtree.getKind() == Kind.START_ELEMENT) {
+            StartElementTree setree = (StartElementTree)dtree;
+            name = setree.getName();
+        } else if (dtree.getKind() == Kind.END_ELEMENT) {
+            EndElementTree eetree = (EndElementTree)dtree;
+            name = eetree.getName();
+        }
+
+        if (name != null) {
+            com.sun.tools.doclint.HtmlTag htmlTag = com.sun.tools.doclint.HtmlTag.get(name);
+            if (htmlTag != null &&
+                    htmlTag.blockType != com.sun.tools.doclint.HtmlTag.BlockType.INLINE) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    boolean isAllWhiteSpace(String body) {
+        for (int i = 0 ; i < body.length(); i++) {
+            if (!Character.isWhitespace(body.charAt(i)))
+                return false;
+        }
+        return true;
+    }
+
+    // Notify the next DocTree handler to take necessary action
+    private boolean commentRemoved = false;
+
+    /**
+     * Converts inline tags and text to text strings, expanding the
+     * inline tags along the way.  Called wherever text can contain
+     * an inline tag, such as in comments or in free-form text arguments
+     * to non-inline tags.
+     *
+     * @param holderTag    specific tag where comment resides
+     * @param element    specific element where comment resides
+     * @param tags   array of text tags and inline tags (often alternating)
+               present in the text of interest for this element
+     * @param isFirstSentence  true if text is first sentence
+     * @return a Content object
+     */
+    public Content commentTagsToContent(DocTree holderTag, Element element,
+            List<? extends DocTree> tags, boolean isFirstSentence) {
+
+        final Content result = new ContentBuilder() {
+            @Override
+            public void addContent(CharSequence text) {
+                super.addContent(utils.normalizeNewlines(text));
+            }
+        };
+        CommentHelper ch = utils.getCommentHelper(element);
+        // Array of all possible inline tags for this javadoc run
+        configuration.tagletManager.checkTags(utils, element, tags, true);
+        commentRemoved = false;
+
+        for (ListIterator<? extends DocTree> iterator = tags.listIterator(); iterator.hasNext();) {
+            boolean isFirstNode = !iterator.hasPrevious();
+            DocTree tag = iterator.next();
+            boolean isLastNode  = !iterator.hasNext();
+
+            if (isFirstSentence) {
+                // Ignore block tags
+                if (ignoreNonInlineTag(tag))
+                    continue;
+
+                // Ignore any trailing whitespace OR whitespace after removed html comment
+                if ((isLastNode || commentRemoved)
+                        && tag.getKind() == TEXT
+                        && isAllWhiteSpace(ch.getText(tag)))
+                    continue;
+
+                // Ignore any leading html comments
+                if ((isFirstNode || commentRemoved) && tag.getKind() == COMMENT) {
+                    commentRemoved = true;
+                    continue;
+                }
+            }
+
+            boolean allDone = new SimpleDocTreeVisitor<Boolean, Content>() {
+
+                private boolean inAnAtag() {
+                    if (utils.isStartElement(tag)) {
+                        StartElementTree st = (StartElementTree)tag;
+                        Name name = st.getName();
+                        if (name != null) {
+                            com.sun.tools.doclint.HtmlTag htag =
+                                    com.sun.tools.doclint.HtmlTag.get(name);
+                            return htag != null && htag.equals(com.sun.tools.doclint.HtmlTag.A);
+                        }
+                    }
+                    return false;
+                }
+
+                @Override
+                public Boolean visitAttribute(AttributeTree node, Content c) {
+                    StringBuilder sb = new StringBuilder(SPACER).append(node.getName());
+                    if (node.getValueKind() == ValueKind.EMPTY) {
+                        result.addContent(sb);
+                        return false;
+                    }
+                    sb.append("=");
+                    String quote;
+                    switch (node.getValueKind()) {
+                        case DOUBLE:
+                            quote = "\"";
+                            break;
+                        case SINGLE:
+                            quote = "\'";
+                            break;
+                        default:
+                            quote = "";
+                            break;
+                    }
+                    sb.append(quote);
+                    result.addContent(sb);
+                    Content docRootContent = new ContentBuilder();
+
+                    for (DocTree dt : node.getValue()) {
+                        if (utils.isText(dt) && inAnAtag()) {
+                            String text = ((TextTree) dt).getBody();
+                            if (text.startsWith("/..") && !configuration.docrootparent.isEmpty()) {
+                                result.addContent(configuration.docrootparent);
+                                docRootContent = new ContentBuilder();
+                                result.addContent(textCleanup(text.substring(3), isLastNode));
+                            } else {
+                                if (!docRootContent.isEmpty()) {
+                                    docRootContent = copyDocRootContent(docRootContent);
+                                } else {
+                                    text = redirectRelativeLinks(element, (TextTree) dt);
+                                }
+                                result.addContent(textCleanup(text, isLastNode));
+                            }
+                        } else {
+                            docRootContent = copyDocRootContent(docRootContent);
+                            dt.accept(this, docRootContent);
+                        }
+                    }
+                    copyDocRootContent(docRootContent);
+                    result.addContent(quote);
+                    return false;
+                }
+
+                @Override
+                public Boolean visitComment(CommentTree node, Content c) {
+                    result.addContent(new RawHtml(node.getBody()));
+                    return false;
+                }
+
+                private Content copyDocRootContent(Content content) {
+                    if (!content.isEmpty()) {
+                        result.addContent(content);
+                        return new ContentBuilder();
+                    }
+                    return content;
+                }
+
+                @Override
+                public Boolean visitDocRoot(DocRootTree node, Content c) {
+                    Content docRootContent = TagletWriter.getInlineTagOutput(element,
+                            configuration.tagletManager,
+                            holderTag,
+                            node,
+                            getTagletWriterInstance(isFirstSentence));
+                    if (c != null) {
+                        c.addContent(docRootContent);
+                    } else {
+                        result.addContent(docRootContent);
+                    }
+                    return false;
+                }
+
+                @Override
+                public Boolean visitEndElement(EndElementTree node, Content c) {
+                    RawHtml rawHtml = new RawHtml("</" + node.getName() + ">");
+                    result.addContent(rawHtml);
+                    return false;
+                }
+
+                @Override
+                public Boolean visitEntity(EntityTree node, Content c) {
+                    result.addContent(new RawHtml(node.toString()));
+                    return false;
+                }
+
+                @Override
+                public Boolean visitErroneous(ErroneousTree node, Content c) {
+                    messages.warning(ch.getDocTreePath(node),
+                            "doclet.tag.invalid_usage", node);
+                    result.addContent(new RawHtml(node.toString()));
+                    return false;
+                }
+
+                @Override
+                public Boolean visitInheritDoc(InheritDocTree node, Content c) {
+                    Content output = TagletWriter.getInlineTagOutput(element,
+                            configuration.tagletManager, holderTag,
+                            tag, getTagletWriterInstance(isFirstSentence));
+                    result.addContent(output);
+                    // if we obtained the first sentence successfully, nothing more to do
+                    return (isFirstSentence && !output.isEmpty());
+                }
+
+                @Override
+                public Boolean visitIndex(IndexTree node, Content p) {
+                    Content output = TagletWriter.getInlineTagOutput(element,
+                            configuration.tagletManager, holderTag, tag,
+                            getTagletWriterInstance(isFirstSentence));
+                    if (output != null) {
+                        result.addContent(output);
+                    }
+                    return false;
+                }
+
+                @Override
+                public Boolean visitLink(LinkTree node, Content c) {
+                    // we need to pass the DocTreeImpl here, so ignore node
+                    result.addContent(seeTagToContent(element, tag));
+                    return false;
+                }
+
+                @Override
+                public Boolean visitLiteral(LiteralTree node, Content c) {
+                    String s = node.getBody().toString();
+                    Content content = new StringContent(utils.normalizeNewlines(s));
+                    if (node.getKind() == CODE)
+                        content = HtmlTree.CODE(content);
+                    result.addContent(content);
+                    return false;
+                }
+
+                @Override
+                public Boolean visitSee(SeeTree node, Content c) {
+                    // we need to pass the DocTreeImpl here, so ignore node
+                    result.addContent(seeTagToContent(element, tag));
+                    return false;
+                }
+
+                @Override
+                public Boolean visitStartElement(StartElementTree node, Content c) {
+                    String text = "<" + node.getName();
+                    RawHtml rawHtml = new RawHtml(utils.normalizeNewlines(text));
+                    result.addContent(rawHtml);
+
+                    for (DocTree dt : node.getAttributes()) {
+                        dt.accept(this, null);
+                    }
+                    result.addContent(new RawHtml(node.isSelfClosing() ? "/>" : ">"));
+                    return false;
+                }
+
+                @Override
+                public Boolean visitSummary(SummaryTree node, Content c) {
+                    Content output = TagletWriter.getInlineTagOutput(element,
+                            configuration.tagletManager, holderTag, tag,
+                            getTagletWriterInstance(isFirstSentence));
+                    result.addContent(output);
+                    return false;
+                }
+
+                private CharSequence textCleanup(String text, boolean isLast) {
+                    return textCleanup(text, isLast, false);
+                }
+
+                private CharSequence textCleanup(String text, boolean isLast, boolean trimLeader) {
+                    if (trimLeader) {
+                        text = removeLeadingWhitespace(text);
+                    }
+                    if (isFirstSentence && isLast) {
+                        text = removeTrailingWhitespace(text);
+                    }
+                    text = utils.replaceTabs(text);
+                    return utils.normalizeNewlines(text);
+                }
+
+                @Override
+                public Boolean visitText(TextTree node, Content c) {
+                    String text = node.getBody();
+                    result.addContent(new RawHtml(textCleanup(text, isLastNode, commentRemoved)));
+                    return false;
+                }
+
+                @Override
+                protected Boolean defaultAction(DocTree node, Content c) {
+                    Content output = TagletWriter.getInlineTagOutput(element,
+                            configuration.tagletManager, holderTag, tag,
+                            getTagletWriterInstance(isFirstSentence));
+                    if (output != null) {
+                        result.addContent(output);
+                    }
+                    return false;
+                }
+
+            }.visit(tag, null);
+            commentRemoved = false;
+            if (allDone)
+                break;
+        }
+        return result;
+    }
+
+    private String removeTrailingWhitespace(String text) {
+        char[] buf = text.toCharArray();
+        for (int i = buf.length - 1; i > 0 ; i--) {
+            if (!Character.isWhitespace(buf[i]))
+                return text.substring(0, i + 1);
+        }
+        return text;
+    }
+
+    private String removeLeadingWhitespace(String text) {
+        char[] buf = text.toCharArray();
+        for (int i = 0; i < buf.length; i++) {
+            if (!Character.isWhitespace(buf[i])) {
+                return text.substring(i);
+            }
+        }
+        return text;
+    }
+
+    /**
+     * Return true if relative links should not be redirected.
+     *
+     * @return Return true if a relative link should not be redirected.
+     */
+    private boolean shouldNotRedirectRelativeLinks() {
+        return  this instanceof AnnotationTypeWriter ||
+                this instanceof ClassWriter ||
+                this instanceof PackageSummaryWriter;
+    }
+
+    /**
+     * Suppose a piece of documentation has a relative link.  When you copy
+     * that documentation to another place such as the index or class-use page,
+     * that relative link will no longer work.  We should redirect those links
+     * so that they will work again.
+     * <p>
+     * Here is the algorithm used to fix the link:
+     * <p>
+     * {@literal <relative link> => docRoot + <relative path to file> + <relative link> }
+     * <p>
+     * For example, suppose DocletEnvironment has this link:
+     * {@literal <a href="package-summary.html">The package Page</a> }
+     * <p>
+     * If this link appeared in the index, we would redirect
+     * the link like this:
+     *
+     * {@literal <a href="./com/sun/javadoc/package-summary.html">The package Page</a>}
+     *
+     * @param element the Element object whose documentation is being written.
+     * @param text the text being written.
+     *
+     * @return the text, with all the relative links redirected to work.
+     */
+    private String redirectRelativeLinks(Element element, TextTree tt) {
+        String text = tt.getBody();
+        if (element == null || utils.isOverviewElement(element) || shouldNotRedirectRelativeLinks()) {
+            return text;
+        }
+
+        DocPath redirectPathFromRoot = new SimpleElementVisitor9<DocPath, Void>() {
+            @Override
+            public DocPath visitType(TypeElement e, Void p) {
+                return DocPath.forPackage(utils.containingPackage(e));
+            }
+
+            @Override
+            public DocPath visitPackage(PackageElement e, Void p) {
+                return DocPath.forPackage(e);
+            }
+
+            @Override
+            public DocPath visitVariable(VariableElement e, Void p) {
+                return DocPath.forPackage(utils.containingPackage(e));
+            }
+
+            @Override
+            public DocPath visitExecutable(ExecutableElement e, Void p) {
+                return DocPath.forPackage(utils.containingPackage(e));
+            }
+
+            @Override
+            protected DocPath defaultAction(Element e, Void p) {
+                return null;
+            }
+        }.visit(element);
+        if (redirectPathFromRoot == null) {
+            return text;
+        }
+        String lower = Utils.toLowerCase(text);
+        if (!(lower.startsWith("mailto:")
+                || lower.startsWith("http:")
+                || lower.startsWith("https:")
+                || lower.startsWith("file:"))) {
+            text = "{@" + (new DocRootTaglet()).getName() + "}/"
+                    + redirectPathFromRoot.resolve(text).getPath();
+            text = replaceDocRootDir(text);
+        }
+        return text;
+    }
+
+    static final Set<String> blockTags = new HashSet<>();
+    static {
+        for (HtmlTag t: HtmlTag.values()) {
+            if (t.blockType == HtmlTag.BlockType.BLOCK)
+                blockTags.add(t.value);
+        }
+    }
+
+    /**
+     * Add a link to the stylesheet file.
+     *
+     * @param head the content tree to which the files will be added
+     */
+    public void addStyleSheetProperties(Content head) {
+        String stylesheetfile = configuration.stylesheetfile;
+        DocPath stylesheet;
+        if (stylesheetfile.isEmpty()) {
+            stylesheet = DocPaths.STYLESHEET;
+        } else {
+            DocFile file = DocFile.createFileForInput(configuration, stylesheetfile);
+            stylesheet = DocPath.create(file.getName());
+        }
+        HtmlTree link = HtmlTree.LINK("stylesheet", "text/css",
+                pathToRoot.resolve(stylesheet).getPath(),
+                "Style");
+        head.addContent(link);
+        if (configuration.createindex) {
+            HtmlTree jq_link = HtmlTree.LINK("stylesheet", "text/css",
+                    pathToRoot.resolve(DocPaths.JQUERY_FILES.resolve(DocPaths.JQUERY_STYLESHEET_FILE)).getPath(),
+                    "Style");
+            head.addContent(jq_link);
+        }
+    }
+
+    /**
+     * Add a link to the JavaScript file.
+     *
+     * @param head the content tree to which the files will be added
+     */
+    public void addScriptProperties(Content head) {
+        HtmlTree javascript = HtmlTree.SCRIPT(pathToRoot.resolve(DocPaths.JAVASCRIPT).getPath());
+        head.addContent(javascript);
+        if (configuration.createindex) {
+            if (pathToRoot != null && script != null) {
+                String ptrPath = pathToRoot.isEmpty() ? "." : pathToRoot.getPath();
+                script.addContent(new RawHtml("var pathtoroot = \"" + ptrPath + "/\";loadScripts(document, \'script\');"));
+            }
+            addJQueryFile(head, DocPaths.JSZIP_MIN);
+            addJQueryFile(head, DocPaths.JSZIPUTILS_MIN);
+            head.addContent(new RawHtml("<!--[if IE]>"));
+            addJQueryFile(head, DocPaths.JSZIPUTILS_IE_MIN);
+            head.addContent(new RawHtml("<![endif]-->"));
+            addJQueryFile(head, DocPaths.JQUERY_JS_1_10);
+            addJQueryFile(head, DocPaths.JQUERY_JS);
+        }
+    }
+
+    /**
+     * Add a link to the JQuery javascript file.
+     *
+     * @param head the content tree to which the files will be added
+     * @param filePath the DocPath of the file that needs to be added
+     */
+    private void addJQueryFile(Content head, DocPath filePath) {
+        HtmlTree jqyeryScriptFile = HtmlTree.SCRIPT(
+                pathToRoot.resolve(DocPaths.JQUERY_FILES.resolve(filePath)).getPath());
+        head.addContent(jqyeryScriptFile);
+    }
+
+    /**
+     * According to
+     * <cite>The Java&trade; Language Specification</cite>,
+     * all the outer classes and static nested classes are core classes.
+     */
+    public boolean isCoreClass(TypeElement typeElement) {
+        return utils.getEnclosingTypeElement(typeElement) == null || utils.isStatic(typeElement);
+    }
+
+    /**
+     * Adds the annotation types for the given packageElement.
+     *
+     * @param packageElement the package to write annotations for.
+     * @param htmltree the documentation tree to which the annotation info will be
+     *        added
+     */
+    public void addAnnotationInfo(PackageElement packageElement, Content htmltree) {
+        addAnnotationInfo(packageElement, packageElement.getAnnotationMirrors(), htmltree);
+    }
+
+    /**
+     * Add the annotation types of the executable receiver.
+     *
+     * @param method the executable to write the receiver annotations for.
+     * @param descList list of annotation description.
+     * @param htmltree the documentation tree to which the annotation info will be
+     *        added
+     */
+    public void addReceiverAnnotationInfo(ExecutableElement method, List<AnnotationMirror> descList,
+            Content htmltree) {
+        addAnnotationInfo(0, method, descList, false, htmltree);
+    }
+
+    /*
+     * this is a hack to delay dealing with Annotations in the writers, the assumption
+     * is that all necessary checks have been made to get here.
+     */
+    public void addReceiverAnnotationInfo(ExecutableElement method, TypeMirror rcvrTypeMirror,
+            List<? extends AnnotationMirror> annotationMirrors, Content htmltree) {
+        TypeMirror rcvrType = method.getReceiverType();
+        List<? extends AnnotationMirror> annotationMirrors1 = rcvrType.getAnnotationMirrors();
+        addAnnotationInfo(0, method, annotationMirrors1, false, htmltree);
+    }
+
+    /**
+     * Adds the annotatation types for the given element.
+     *
+     * @param element the package to write annotations for
+     * @param htmltree the content tree to which the annotation types will be added
+     */
+    public void addAnnotationInfo(Element element, Content htmltree) {
+        addAnnotationInfo(element, element.getAnnotationMirrors(), htmltree);
+    }
+
+    /**
+     * Add the annotatation types for the given element and parameter.
+     *
+     * @param indent the number of spaces to indent the parameters.
+     * @param element the element to write annotations for.
+     * @param param the parameter to write annotations for.
+     * @param tree the content tree to which the annotation types will be added
+     */
+    public boolean addAnnotationInfo(int indent, Element element, VariableElement param,
+            Content tree) {
+        return addAnnotationInfo(indent, element, param.getAnnotationMirrors(), false, tree);
+    }
+
+    /**
+     * Adds the annotatation types for the given Element.
+     *
+     * @param element the element to write annotations for.
+     * @param descList the array of {@link AnnotationDesc}.
+     * @param htmltree the documentation tree to which the annotation info will be
+     *        added
+     */
+    private void addAnnotationInfo(Element element, List<? extends AnnotationMirror> descList,
+            Content htmltree) {
+        addAnnotationInfo(0, element, descList, true, htmltree);
+    }
+
+    /**
+     * Adds the annotation types for the given element.
+     *
+     * @param indent the number of extra spaces to indent the annotations.
+     * @param element the element to write annotations for.
+     * @param descList the array of {@link AnnotationDesc}.
+     * @param htmltree the documentation tree to which the annotation info will be
+     *        added
+     */
+    private boolean addAnnotationInfo(int indent, Element element,
+            List<? extends AnnotationMirror> descList, boolean lineBreak, Content htmltree) {
+        List<Content> annotations = getAnnotations(indent, descList, lineBreak);
+        String sep = "";
+        if (annotations.isEmpty()) {
+            return false;
+        }
+        for (Content annotation: annotations) {
+            htmltree.addContent(sep);
+            htmltree.addContent(annotation);
+            if (!lineBreak) {
+                sep = " ";
+            }
+        }
+        return true;
+    }
+
+   /**
+     * Return the string representations of the annotation types for
+     * the given doc.
+     *
+     * @param indent the number of extra spaces to indent the annotations.
+     * @param descList the array of {@link AnnotationDesc}.
+     * @param linkBreak if true, add new line between each member value.
+     * @return an array of strings representing the annotations being
+     *         documented.
+     */
+    private List<Content> getAnnotations(int indent, List<? extends AnnotationMirror> descList, boolean linkBreak) {
+        return getAnnotations(indent, descList, linkBreak, true);
+    }
+
+    private List<Content> getAnnotations(int indent, AnnotationMirror amirror, boolean linkBreak) {
+        List<AnnotationMirror> descList = new ArrayList<>();
+        descList.add(amirror);
+        return getAnnotations(indent, descList, linkBreak, true);
+    }
+
+    /**
+     * Return the string representations of the annotation types for
+     * the given doc.
+     *
+     * A {@code null} {@code elementType} indicates that all the
+     * annotations should be returned without any filtering.
+     *
+     * @param indent the number of extra spaces to indent the annotations.
+     * @param descList the array of {@link AnnotationDesc}.
+     * @param linkBreak if true, add new line between each member value.
+     * @param isJava5DeclarationLocation
+     * @return an array of strings representing the annotations being
+     *         documented.
+     */
+    public List<Content> getAnnotations(int indent, List<? extends AnnotationMirror> descList,
+            boolean linkBreak, boolean isJava5DeclarationLocation) {
+        List<Content> results = new ArrayList<>();
+        ContentBuilder annotation;
+        for (AnnotationMirror aDesc : descList) {
+            TypeElement annotationElement = (TypeElement)aDesc.getAnnotationType().asElement();
+            // If an annotation is not documented, do not add it to the list. If
+            // the annotation is of a repeatable type, and if it is not documented
+            // and also if its container annotation is not documented, do not add it
+            // to the list. If an annotation of a repeatable type is not documented
+            // but its container is documented, it will be added to the list.
+            if (!utils.isDocumentedAnnotation(annotationElement) &&
+                (!isAnnotationDocumented && !isContainerDocumented)) {
+                continue;
+            }
+            /* TODO: check logic here to correctly handle declaration
+             * and type annotations.
+            if  (utils.isDeclarationAnnotation(annotationElement, isJava5DeclarationLocation)) {
+                continue;
+            }*/
+            annotation = new ContentBuilder();
+            isAnnotationDocumented = false;
+            LinkInfoImpl linkInfo = new LinkInfoImpl(configuration,
+                                                     LinkInfoImpl.Kind.ANNOTATION, annotationElement);
+            Map<? extends ExecutableElement, ? extends AnnotationValue> pairs = aDesc.getElementValues();
+            // If the annotation is synthesized, do not print the container.
+            if (utils.configuration.workArounds.isSynthesized(aDesc)) {
+                for (ExecutableElement ee : pairs.keySet()) {
+                    AnnotationValue annotationValue = pairs.get(ee);
+                    List<AnnotationValue> annotationTypeValues = new ArrayList<>();
+
+                    new SimpleAnnotationValueVisitor9<Void, List<AnnotationValue>>() {
+                        @Override
+                        public Void visitArray(List<? extends AnnotationValue> vals, List<AnnotationValue> p) {
+                            p.addAll(vals);
+                            return null;
+                        }
+
+                        @Override
+                        protected Void defaultAction(Object o, List<AnnotationValue> p) {
+                            p.add(annotationValue);
+                            return null;
+                        }
+                    }.visit(annotationValue, annotationTypeValues);
+
+                    String sep = "";
+                    for (AnnotationValue av : annotationTypeValues) {
+                        annotation.addContent(sep);
+                        annotation.addContent(annotationValueToContent(av));
+                        sep = " ";
+                    }
+                }
+            } else if (isAnnotationArray(pairs)) {
+                // If the container has 1 or more value defined and if the
+                // repeatable type annotation is not documented, do not print
+                // the container.
+                if (pairs.size() == 1 && isAnnotationDocumented) {
+                    List<AnnotationValue> annotationTypeValues = new ArrayList<>();
+                    for (AnnotationValue a :  pairs.values()) {
+                        new SimpleAnnotationValueVisitor9<Void, List<AnnotationValue>>() {
+                            @Override
+                            public Void visitArray(List<? extends AnnotationValue> vals, List<AnnotationValue> annotationTypeValues) {
+                               for (AnnotationValue av : vals) {
+                                   annotationTypeValues.add(av);
+                               }
+                               return null;
+                            }
+                        }.visit(a, annotationTypeValues);
+                    }
+                    String sep = "";
+                    for (AnnotationValue av : annotationTypeValues) {
+                        annotation.addContent(sep);
+                        annotation.addContent(annotationValueToContent(av));
+                        sep = " ";
+                    }
+                }
+                // If the container has 1 or more value defined and if the
+                // repeatable type annotation is not documented, print the container.
+                else {
+                    addAnnotations(annotationElement, linkInfo, annotation, pairs,
+                                   indent, false);
+                }
+            }
+            else {
+                addAnnotations(annotationElement, linkInfo, annotation, pairs,
+                               indent, linkBreak);
+            }
+            annotation.addContent(linkBreak ? DocletConstants.NL : "");
+            results.add(annotation);
+        }
+        return results;
+    }
+
+    /**
+     * Add annotation to the annotation string.
+     *
+     * @param annotationDoc the annotation being documented
+     * @param linkInfo the information about the link
+     * @param annotation the annotation string to which the annotation will be added
+     * @param pairs annotation type element and value pairs
+     * @param indent the number of extra spaces to indent the annotations.
+     * @param linkBreak if true, add new line between each member value
+     */
+    private void addAnnotations(TypeElement annotationDoc, LinkInfoImpl linkInfo,
+        ContentBuilder annotation, Map<? extends ExecutableElement,? extends AnnotationValue>map,
+        int indent, boolean linkBreak) {
+        linkInfo.label = new StringContent("@");
+        linkInfo.label.addContent(annotationDoc.getSimpleName());
+        annotation.addContent(getLink(linkInfo));
+        if (!map.isEmpty()) {
+            annotation.addContent("(");
+            boolean isFirst = true;
+            Set<? extends ExecutableElement> keys = map.keySet();
+            boolean multipleValues = keys.size() > 1;
+            for (ExecutableElement element : keys) {
+                if (isFirst) {
+                    isFirst = false;
+                } else {
+                    annotation.addContent(",");
+                    if (linkBreak) {
+                        annotation.addContent(DocletConstants.NL);
+                        int spaces = annotationDoc.getSimpleName().length() + 2;
+                        for (int k = 0; k < (spaces + indent); k++) {
+                            annotation.addContent(" ");
+                        }
+                    }
+                }
+                String simpleName = element.getSimpleName().toString();
+                if (multipleValues || !"value".equals(simpleName)) { // Omit "value=" where unnecessary
+                    annotation.addContent(getDocLink(LinkInfoImpl.Kind.ANNOTATION,
+                                                     element, simpleName, false));
+                    annotation.addContent("=");
+                }
+                AnnotationValue annotationValue = map.get(element);
+                List<AnnotationValue> annotationTypeValues = new ArrayList<>();
+                new SimpleAnnotationValueVisitor9<Void, AnnotationValue>() {
+                    @Override
+                    public Void visitArray(List<? extends AnnotationValue> vals, AnnotationValue p) {
+                        annotationTypeValues.addAll(vals);
+                        return null;
+                    }
+                    @Override
+                    protected Void defaultAction(Object o, AnnotationValue p) {
+                        annotationTypeValues.add(p);
+                        return null;
+                    }
+                }.visit(annotationValue, annotationValue);
+                annotation.addContent(annotationTypeValues.size() == 1 ? "" : "{");
+                String sep = "";
+                for (AnnotationValue av : annotationTypeValues) {
+                    annotation.addContent(sep);
+                    annotation.addContent(annotationValueToContent(av));
+                    sep = ",";
+                }
+                annotation.addContent(annotationTypeValues.size() == 1 ? "" : "}");
+                isContainerDocumented = false;
+            }
+            annotation.addContent(")");
+        }
+    }
+
+    /**
+     * Check if the annotation contains an array of annotation as a value. This
+     * check is to verify if a repeatable type annotation is present or not.
+     *
+     * @param pairs annotation type element and value pairs
+     *
+     * @return true if the annotation contains an array of annotation as a value.
+     */
+    private boolean isAnnotationArray(Map<? extends ExecutableElement, ? extends AnnotationValue> pairs) {
+        AnnotationValue annotationValue;
+        for (ExecutableElement ee : pairs.keySet()) {
+            annotationValue = pairs.get(ee);
+            boolean rvalue = new SimpleAnnotationValueVisitor9<Boolean, Void>() {
+                @Override
+                public Boolean visitArray(List<? extends AnnotationValue> vals, Void p) {
+                    if (vals.size() > 1) {
+                        if (vals.get(0) instanceof AnnotationMirror) {
+                            isContainerDocumented = true;
+                            return new SimpleAnnotationValueVisitor9<Boolean, Void>() {
+                                @Override
+                                public Boolean visitAnnotation(AnnotationMirror a, Void p) {
+                                    isContainerDocumented = true;
+                                    Element asElement = a.getAnnotationType().asElement();
+                                    if (utils.isDocumentedAnnotation((TypeElement)asElement)) {
+                                        isAnnotationDocumented = true;
+                                    }
+                                    return true;
+                                }
+                                @Override
+                                protected Boolean defaultAction(Object o, Void p) {
+                                    return false;
+                                }
+                            }.visit(vals.get(0));
+                        }
+                    }
+                    return false;
+                }
+
+                @Override
+                protected Boolean defaultAction(Object o, Void p) {
+                    return false;
+                }
+            }.visit(annotationValue);
+            if (rvalue) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private Content annotationValueToContent(AnnotationValue annotationValue) {
+        return new SimpleAnnotationValueVisitor9<Content, Void>() {
+
+            @Override
+            public Content visitType(TypeMirror t, Void p) {
+                return new SimpleTypeVisitor9<Content, Void>() {
+                    @Override
+                    public Content visitDeclared(DeclaredType t, Void p) {
+                        LinkInfoImpl linkInfo = new LinkInfoImpl(configuration,
+                                LinkInfoImpl.Kind.ANNOTATION, t);
+                        String name = utils.isIncluded(t.asElement())
+                                ? t.asElement().getSimpleName().toString()
+                                : utils.getFullyQualifiedName(t.asElement());
+                        linkInfo.label = new StringContent(name + utils.getDimension(t) + ".class");
+                        return getLink(linkInfo);
+                    }
+                    @Override
+                    protected Content defaultAction(TypeMirror e, Void p) {
+                        return new StringContent(t + utils.getDimension(t) + ".class");
+                    }
+                }.visit(t);
+            }
+            @Override
+            public Content visitAnnotation(AnnotationMirror a, Void p) {
+                List<Content> list = getAnnotations(0, a, false);
+                ContentBuilder buf = new ContentBuilder();
+                for (Content c : list) {
+                    buf.addContent(c);
+                }
+                return buf;
+            }
+            @Override
+            public Content visitEnumConstant(VariableElement c, Void p) {
+                return getDocLink(LinkInfoImpl.Kind.ANNOTATION,
+                        c, c.getSimpleName(), false);
+            }
+            @Override
+            public Content visitArray(List<? extends AnnotationValue> vals, Void p) {
+                ContentBuilder buf = new ContentBuilder();
+                String sep = "";
+                for (AnnotationValue av : vals) {
+                    buf.addContent(sep);
+                    buf.addContent(visit(av));
+                    sep = " ";
+                }
+                return buf;
+            }
+            @Override
+            protected Content defaultAction(Object o, Void p) {
+                return new StringContent(annotationValue.toString());
+            }
+        }.visit(annotationValue);
+    }
+
+    /**
+     * Return the configuration for this doclet.
+     *
+     * @return the configuration for this doclet.
+     */
+    @Override
+    public BaseConfiguration configuration() {
+        return configuration;
+    }
+}