@Override
        public void run() throws Exception {
        }
Handle an exception that was either generated by running the event, or by the
event queue's inability to run the event.

@param e     The exception.  This will be a TimeoutException if the event hit
             its deadline before it could be scheduled.
             It will be a RejectedExecutionException if the event could not be
             scheduled because the event queue has already been closed.
             Otherwise, it will be whatever exception was thrown by run().
server-common/src/main/java/org/apache/kafka/queue/EventQueue.java