--- a/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/AbstractIndexWriter.java	Thu Jun 22 18:42:48 2017 +0000
+++ b/langtools/src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/AbstractIndexWriter.java	Mon Jun 26 18:48:31 2017 -0700
@@ -140,7 +140,9 @@
         int j = 0;
         Content dl = new HtmlTree(HtmlTag.DL);
         while (i < memberListSize && j < searchListSize) {
-            String name = utils.getSimpleName(memberlist.get(i));
+            Element elem = memberlist.get(i);
+            String name = (utils.isModule(elem))
+                    ? utils.getFullyQualifiedName(elem) : utils.getSimpleName(elem);
             if (name.compareTo(searchList.get(j).getLabel()) < 0) {
                 addDescription(dl, memberlist.get(i));
                 i++;
@@ -222,7 +224,7 @@
      * @param dlTree the content tree to which the description will be added
      */
     protected void addDescription(ModuleElement mdle, Content dlTree, SearchIndexItem si) {
-        String moduleName = utils.getSimpleName(mdle);
+        String moduleName = utils.getFullyQualifiedName(mdle);
         Content link = getModuleLink(mdle, new StringContent(moduleName));
         si.setLabel(moduleName);
         si.setCategory(resources.getText("doclet.Modules"));
@@ -246,7 +248,7 @@
     protected void addDescription(PackageElement pkg, Content dlTree, SearchIndexItem si) {
         Content link = getPackageLink(pkg, new StringContent(utils.getPackageName(pkg)));
         if (configuration.showModules) {
-            si.setContainingModule(utils.getSimpleName(utils.containingModule(pkg)));
+            si.setContainingModule(utils.getFullyQualifiedName(utils.containingModule(pkg)));
         }
         si.setLabel(utils.getPackageName(pkg));
         si.setCategory(resources.getText("doclet.Packages"));