be converted to an integer, this method throws a
 <code>NumberFormatException</code>.

 <p>
 The header name is case insensitive.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>name</code> - a <code>String</code> specifying the name of a request header</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an integer expressing the value of the request header or -1 if the request doesn't have a header of this name</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><co