workQueueConfig.addChangeListener(this);
// Get the work queue class, and load and instantiate an instance of it
// using that configuration.
WorkQueueCfgDefn definition = WorkQueueCfgDefn.getInstance();
ClassPropertyDefinition propertyDefinition =
definition.getJavaClassPropertyDefinition();
Class<? extends WorkQueue> workQueueClass =
propertyDefinition.loadClass(workQueueConfig.getJavaClass(),
WorkQueue.class);
try