org.zkoss.zk.ui.event.EventQueueProvider.class
From Documentation
Property:
org.zkoss.zk.ui.event.EventQueueProvider.class
Applicable: globally in zk.xml via <library-property> not as <custom-attribute>
Default: none (it implies EventQueueProviderImpl)
Since 5.0.0
It specifies the name of the class used to provide the event queue. The class must implement the EventQueueProvider interface.