s.

 <p>
 This method is useful for creating redirect messages and for reporting errors.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>req</code> - a <code>HttpServletRequest</code> object containing the client's request</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>StringBuffer</code> object containing the reconstructed URL</dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
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