--- a/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/TreeWriter.java	Fri Mar 01 04:34:28 2019 -0800
+++ b/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/TreeWriter.java	Mon Mar 04 11:19:34 2019 -0800
@@ -29,7 +29,6 @@
 
 import javax.lang.model.element.PackageElement;
 
-import jdk.javadoc.internal.doclets.formats.html.markup.HtmlConstants;
 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;
@@ -108,7 +107,7 @@
     public void generateTreeFile() throws DocFileIOException {
         HtmlTree body = getTreeHeader();
         Content headContent = contents.hierarchyForAllPackages;
-        Content heading = HtmlTree.HEADING(HtmlConstants.TITLE_HEADING, false,
+        Content heading = HtmlTree.HEADING(Headings.PAGE_TITLE_HEADING, false,
                 HtmlStyle.title, headContent);
         Content div = HtmlTree.DIV(HtmlStyle.header, heading);
         addPackageTreeLinks(div);