Signal Error

[mattowens]

Could anyone please explain why this code throws the following exception: "closed JbpmContext in different order then they were created... check your try-finally's around JbpmContexts blocks".

Code:

public JbpmProcessInstance(JbpmProcessDefinition processDef, bpmProcessInstanceVar var)
{
beginSessionTransaction();
try
{
ProcessDefinition processDefinition = jbpmContext.getGraphSession().loadProcessDefinition(processDef.getId());

// create a new process instance to run
processInstance = new ProcessInstance (processDefinition);

if(var!=null)
addProcessInstanceVar(var);

processInstance.signal();
}
catch (Exception e)
{
log.error(e.getMessage());
throw new JBPMException(e.getMessage(),e);
}
finally
{
commitAndCloseSession();
}
}

The error is thrown on the signal() line. I have tried to find a reason for this for a number of days and as a result of not being able to am now loooking at other workflow solutions. could someeone please point me in the direction of an explaination so i can continue using JBPM?

Thanks

[scitmon]

JBPM signalling doesn't work. I tried to decorate JBPM objects into more manageable strcture but the context kept going out of skope or reporting invalid creatiun states. I think this will going to be fixed in the next release.

[kukeltje]

@scitmon: why do you come to this conclusion?

[scitmon]

"kukeltje" wrote:
@scitmon: why do you come to this conclusion?

because i have tried many different ways to get JBPM working and signalling always causes error with the following text "closed JbpmContext in different order then they were created... check your try-finally's around JbpmContexts blocks". The CVS tests don't seem to work either. There is no help files they explain how to do this.

[kukeltje]

CVS tests don't work? You mean the jbpm unit tests? They work for me and I only have had this error when things were not programmed correctly or the transaction configuration was not ok. So jBPM signalling *does* work.

We need a more specific and isolated example, including transaction config, hibernate config jbpm config, good code etc... to be able to help. Just a statement like 'jbpm signalling does not work' does not help, including 'tried many different ways'. I've used it in two different ways and did not get this error....