[jbpm-users] JBPM4.4, Call taskService.completeTask(), but still has this task in "jbpm4_task" table!

Hello all, I use JBPM4.4, and call following method: if (transition.getDestination().getType().equals("end")) { taskService.completeTask(taskId, transition.getName()); } The transition is go to an END type destination. It works fine and activates the 'EndWorkflowListener',... But the weird thing is that: There is still one task in table "jbpm4_task". How to delete that task in "jbpm4_task" table? What shall I do? Thank you very much. Regards, Mead