HBASE-28514: HBase web console automatically listing directories in static/css

hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java

@@ -770,7 +770,7 @@ protected void addDefaultApps(ContextHandlerCollection parent, final String appD
     // set up the context for "/static/*"
     ServletContextHandler staticContext = new ServletContextHandler(parent, "/static");
     staticContext.setResourceBase(appDir + "/static");
-    staticContext.addServlet(DefaultServlet.class, "/*");
+    staticContext.addServlet(AdminAuthorizedServlet.class, "/*");
     staticContext.setDisplayName("static");
     setContextAttributes(staticContext, conf);
     defaultContexts.put(staticContext, true);

hbase-server/src/main/resources/hbase-webapps/static/index.html

@@ -0,0 +1,20 @@
+<!--
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+-->
+<meta HTTP-EQUIV="REFRESH" content="0;url=/master-status"/>

hbase-shaded/hbase-shaded-testing-util/src/main/resources/org/apache/hadoop/hbase/shaded/org/eclipse/jetty/webapp/webdefault.xml

@@ -163,11 +163,11 @@ limitations under the License.
     </init-param>
     <init-param>
       <param-name>welcomeServlets</param-name>
-      <param-value>false</param-value>
+      <param-value>true</param-value>
     </init-param>
     <init-param>
       <param-name>redirectWelcome</param-name>
-      <param-value>false</param-value>
+      <param-value>true</param-value>
     </init-param>
     <init-param>
       <param-name>maxCacheSize</param-name>