a topic, it defines a new sequence of messages that have no ordering relationship with the
 messages it has previously sent.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>topic</code> - the <code>Topic</code> to publish to, or null if this is an unidentified producer</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A publisher for the specified topic.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../jakarta/jms/JMSException.html" title="c