if (jobExecutor==null) {
jobExecutor = new DefaultJobExecutor();
}
jobHandlers = new HashMap<String, JobHandler>();
TimerExecuteNestedActivityJobHandler timerExecuteNestedActivityJobHandler = new TimerExecuteNestedActivityJobHandler();
jobHandlers.put(timerExecuteNestedActivityJobHandler.getType(), timerExecuteNestedActivityJobHandler);
TimerCatchIntermediateEventJobHandler timerCatchIntermediateEvent = new TimerCatchIntermediateEventJobHandler();
jobHandlers.put(timerCatchIntermediateEvent.getType(), timerCatchIntermediateEvent);
TimerStartEventJobHandler timerStartEvent = new TimerStartEventJobHandler();