                     implementation does not support modification
                                  of existing values</dd>
<dd><code><a href="../MessagingException.html" title="class in jakarta.mail">MessagingException</a></code> - for other failures</dd>
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<h4>addBodyPart</h4>
<pre class="methodSignature">public&nbsp;void&nbsp;addBodyPart&#8203;(<a href="../BodyPart.html" title="cl