◇問題のソース
<?xml version="1.0" encoding="EUC-JP"?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"; version="2.0">
<jsp:directive.page language="java" contentType="text/html; charset=EUC-JP" pageEncoding="EUC-JP" />
<jsp:useBean id="SimpleMessageBean" class="wts.common.SimpleMessageBean" scope="request" />
<jsp:text><![CDATA[<?xml version="1.0" encoding="EUC-JP"?>]]></jsp:text>
<jsp:text>
<![CDATA[<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd";>]]>
</jsp:text>

<html version="-//W3C//DTD XHTML 1.1//EN" xml:lang="ja-JP" xmlns="http://www.w3.org/1999/xhtml";>
<head>
<link href="/ex/include/style.css" rel="StyleSheet" />
<link href="/ex/" rel="Start" />
<title>ほげ</title>
</head>
<body>
<p>
ほえほえほえbar
</p>
</body>
</html>
</jsp:root>