code: public void createVolatileScheduler (final int nMaxThreads) throws SchedulerException
    {
      final SimpleThreadPool aThreadPool = new SimpleThreadPool (nMaxThreads, Thread.NORM_PRIORITY);
      aThreadPool.initialize ();
      final IJobStore jobStore = new RAMJobStore ();
      createScheduler (aThreadPool, jobStore);
    }
docs: Creates an in memory job store (<code>{@link RAMJobStore}</code>) The
  thread priority is set to Thread.NORM_PRIORITY
  
  @param nMaxThreads
  The number of threads in the thread pool
  @throws SchedulerException
  if initialization failed.