Multiple Jbpm processes problem

[v.lukoyanov]

Hi.

I don't know whether it's a bug or a feature. I'm trying to start multiple JBPM processes with parameters. The problem is that the parameters weren't not saved for the last process.

More precisely:
Action:

    
    @In(value = "bpmInitializer", create = true)
    private BpmInitializer _bpm;
...
    @End
    public String confirm() {

        for (GeneralPlanItem gpi: _plan.getInstance().getItems()) {
            for (Course c: gpi.getCourseContent().getCourses()) {
                _bpm.startCourseConfirmation(c.getId());
            }
        }
}

BpmInitializer.java:

@Name("bpmInitializer")
@Scope(ScopeType.EVENT)
public class BpmInitializer {

    @Logger
    private Log _log;

    public void startCourseConfirmation(Long aId) {
        _log.info("planId={0}", aId);
        Contexts.getBusinessProcessContext().set("planId", aId);
        BusinessProcess.instance().createProcess("coursePlan-confirmation");
    }
}

All started processes except the last one have planId variables bound to them. I checked the jbpm database, jbpmvariableinstance table and the last record have several empty columns (token, tokenvariablemap, processinstance).

I also tried @Createprocess annotation, but behaviour was the same.
Please, tell me how to alter BpmInitializer to make it work properly.