tiple values sent by the POST method.

 <p>
 The keys and values in the hashtable are stored in their decoded form, so any + characters are converted to
 spaces, and characters sent in hexadecimal notation (like <i>%xx</i>) are converted to ASCII characters.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>len</code> - an integer specifying the length, in characters, of the <code>ServletInputStream</code> object that is
            also passed to this method</dd>
<dd><code>in</code>