>TimeUnit</a>&nbsp;unit)</code></th>
<td class="colLast">
<div class="block">Close this event source and wait for the internal event processing task to complete for up to the specified amount of
 wait time.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isOpen()">isOpen</a></span>()</code></th>
<td class="colLast">
<div class="block">Check if this event source instance has already b