My settings are Seam 2.1.1, JBoss 4.2.2, Quartz 1.6.
I am deploying a WAR (no EJB). Seam 2.1.1 works fine with this setup, but I can't invoke an asynchronous method:

@Name("previewBean") @Scope(ScopeType.PAGE)
public class PreviewBean implements Serializable {
     
     @In ShellService service;
     
     private FoglioCassaType foglioCassa;
     
     @Asynchronous
     public void processTotals() {
          foglioCassa = service.getFoglioCassaCorrente();
     }
     
     public FoglioCassaType getFoglioCassa() {
          return foglioCassa;
     }

}

My Test is

     @Test
     public void processTotals() throws Exception {
          new FacesRequest("/home.xhtml") {
               @Override protected void invokeApplication() {
                    invokeMethod("#{previewBean.processTotals}"); 
               }
          }.run();
     }

and my components.xml contains this

<async:quartz-dispatcher/>

I get a short exception (also in JBoss not only in tests):

09:41:51,062 INFO  [QuartzScheduler] Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutting down.
09:41:51,062 INFO  [QuartzScheduler] Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED paused.
09:41:51,062 ERROR [AsynchronousExceptionHandler] Exeception thrown whilst executing asynchronous call
java.lang.NullPointerException
     at org.jboss.seam.async.AsynchronousInvocation$1.process(AsynchronousInvocation.java:55)
     at org.jboss.seam.async.Asynchronous$ContextualAsynchronousRequest.run(Asynchronous.java:80)
     at org.jboss.seam.async.AsynchronousInvocation.execute(AsynchronousInvocation.java:44)
     at org.jboss.seam.async.QuartzDispatcher$QuartzJob.execute(QuartzDispatcher.java:243)
     at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
     at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
09:41:51,062 INFO  [QuartzScheduler] Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED shutdown complete.