Fix monitoring example web.xml

Change-Id: I43764d90434d6eee49148c06e28b4a85ac83f56f

Author: Petr Bouda

examples/monitoring-webapp/src/main/webapp/WEB-INF/web.xml

@@ -1,8 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <!--
 
     DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 
-    Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
+    Copyright (c) 2013-2016 Oracle and/or its affiliates. All rights reserved.
 
     The contents of this file are subject to the terms of either the GNU
     General Public License Version 2 only ("GPL") or the Common Development
@@ -39,11 +40,8 @@
     holder.
 
 -->
-<!DOCTYPE web-app PUBLIC
- "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
- "http://java.sun.com/dtd/web-app_2_3.dtd" >
 
-<web-app>
+<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
   <display-name>Archetype Created Web Application</display-name>
     <servlet>
         <servlet-name>org.glassfish.jersey.examples.monitoring.MyApplication</servlet-name>