In my process there is parallel gateway that will create 5 new ongoing flow. But one flow can stop main process.(other 4 ongoing flow should be interrupted.) As activiti does not have terminate end event, I can not model. Is there any other way.
You can create a sub-process scope around the process and have each of the 5 flows throw a message-event. On the subproces-scope you define a catching boundary-event (cancelActivity=true) which causes the other flows to be interrupted.