Unable to find the right listener class from BPMN

Two application BPMN are deployed in same cockpit , where we have escalation scheduler on BPMN . But whenever the escalation triggers it searches in other application where this escalation is not there and we get class not found exception . This is when i access the listeners with package (Java class). If i declare this class by selecting Listener Type as Delegate Expression it wont even pick that Listener neither throws error/exeption .Can anybody please suggest any solution on this.


@Gaga can you upload your BPMN file?