mbean exception adding , to sig error

[garyg]

I have a session bean calling invoke on a method in my mbean service that seems to be successful in calling the method, but is getting the following error. (I don't see what the scheduleJob() sig is doing w/ the ',' )

19:01:55,159 ERROR [TaskSchedulerBean] Exception in MBean operation 'scheduleJob(,com.neuroquest.cais.objects.BuildObj)'

Any help much appreciated.

--- session bean code snippet

public void scheduleTask(FieldObj fInfo) throws RemoteException {

Object result = null;

try {
List lServers = MBeanServerFactory.findMBeanServer(null);

MBeanServer lServer = (MBeanServer) lServers.get(0);

ObjectName name = new ObjectName("DefaultDomain:service=Scheduler");

Object[] args = { fInfo };
String[] sig = { FieldObj.class.getName() };

lServer.invoke(name, "scheduleJob", args, sig);

--- ServiceMBeanSupport

public void scheduleJob() throws Exception {
log.debug(Scheduler.class, "calling scheduleJob()");
...
return;
}

public void scheduleJob(FieldObj obj) throws Exception {
log.debug(Scheduler.class, "calling scheduleJob(obj)");
...
return;
}

--- ServiceMBean interface

public void scheduleJob() throws Exception;
public void scheduleJob(FieldObj obj) throws Exception;

[juha]

well, do you throw an exception from operation scheduleJob?