ervlet.ServletResponse)</code></a>, the server path in the
 reconstructed URL must reflect the path used to obtain the RequestDispatcher, and not the server path specified by
 the client.

 <p>
 Because this method returns a <code>StringBuffer</code>, not a string, you can modify the URL easily, for example, to
 append query parameters.

 <p>
 This method is useful for creating redirect messages and for reporting errors.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>a <code>StringBuffer</code> object conta