           throws <a href="MessagingException.html" title="class in jakarta.mail">MessagingException</a></pre>
<div class="block">Returns the UIDValidity value associated with this folder. <p>

 Clients typically compare this value against a UIDValidity
 value saved from a previous session to insure that any cached
 UIDs are not stale.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>UIDValidity</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="MessagingException.htm