title: Eclipse warnings: fmt:formatDate and html:hidden must be empty
body: <p>I am doing some manipulations with date. It works fine. But eclipse shows warnings such as <code>&lt;fmt:formatDate&gt; and &lt;html:hidden&gt; must be empty</code>.
  I tried rewriting this constructions but nothing changes. I use these libraries.</p>
  
  <p>The following is my code:</p>
  
  <pre><code>&lt;%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%&gt;
  &lt;%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%&gt;
  
  &lt;c:set var="date_str"&gt;    
      &lt;fmt:formatDate value="${myForm.itemShop.date}"&gt;
          &lt;jsp:attribute name="pattern"&gt;
              &lt;bean:message key="date.pattern" /&gt;
          &lt;/jsp:attribute&gt;
      &lt;/fmt:formatDate&gt;
  &lt;/c:set&gt;
  
  &lt;html:hidden property="datePattern"&gt;
      &lt;jsp:attribute name="value"&gt;
          &lt;bean:message key="date.pattern" /&gt;
      &lt;/jsp:attribute&gt;
  &lt;/html:hidden&gt;
  </code></pre>