s="block">Get the request trailer fields.

 <p>
 The returned map is not backed by the <code>HttpServletRequest</code> object, so changes in the returned map are not
 reflected in the <code>HttpServletRequest</code> object, and vice-versa.
 </p>
 
 <p>
 <a href="../../../jakarta/servlet/http/HttpServletRequest.html#isTrailerFieldsReady--"><code>isTrailerFieldsReady()</code></a> should be called first to determine if it is safe to call this method without causing
 an exception.
 </p></div>
<dl>
<dt><span cla