ignored and the
 original InputStream is returned.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>is</code> - input stream</dd>
<dd><code>encoding</code> - the encoding of the stream.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>decoded input stream.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../jakarta/mail/MessagingException.html" title="class in jakarta.mail">MessagingException</a></code> - if the encoding is unknown</dd>
</dl