)</pre>
<div class="block">Returns all the values of the specified request header as an <code>Enumeration</code> of <code>String</code> objects.

 <p>
 Some headers, such as <code>Accept-Language</code> can be sent by clients as several headers each with a different
 value rather than sending the header as a comma separated list.

 <p>
 If the request did not include any headers of the specified name, this method returns an empty
 <code>Enumeration</code>. The header name is case insensitive. You can use th