sometimes when i start a process,the database has the saved the related task successfully.But when i complete the task through the human task view,in the console,information will be printed just like this:

[2011:06:158 15:06:580:debug] Message receieved on client : AddTaskResponse

[2011:06:158 15:06:581:debug] Arguments : [5]

[2011:06:158 15:06:743:debug] Message receieved on client : EventTriggerResponse

[2011:06:158 15:06:743:debug] Arguments : [org.jbpm.task.event.EventPayload@98bbf6]

Task completed 5

[2011:06:158 15:06:745:debug] Message receieved on client : EventTriggerResponse

[2011:06:158 15:06:745:debug] Arguments : [org.jbpm.task.event.EventPayload@147e668]

[2011:06:158 15:06:745:debug] Message receieved on client : EventTriggerResponse

[2011:06:158 15:06:746:debug] Arguments : [org.jbpm.task.event.EventPayload@167c5e3]

[2011:06:158 15:06:747:debug] Message receieved on client : EventTriggerResponse

[2011:06:158 15:06:750:debug] Arguments : [org.jbpm.task.event.EventPayload@1f0cf51]

Task completed 5

[2011:06:158 15:06:751:debug] Message receieved on client : EventTriggerResponse

[2011:06:158 15:06:751:debug] Arguments : [org.jbpm.task.event.EventPayload@c9b196]

Task completed 5

[2011:06:158 15:06:805:debug] Message receieved on client : GetTaskResponse

[2011:06:158 15:06:805:debug] Arguments : [javax.persistence.EntityNotFoundException: No Task with ID 5 was found!]

[2011:06:158 15:06:806:debug] Message receieved on client : GetTaskResponse

[2011:06:158 15:06:806:debug] Arguments : [javax.persistence.EntityNotFoundException: No Task with ID 5 was found!]

[2011:06:158 15:06:807:debug] Message receieved on client : GetTaskResponse

[2011:06:158 15:06:807:debug] Arguments : [javax.persistence.EntityNotFoundException: No Task with ID 5 was found!]

By the way,the task with id 5 shows completed in the database.Can you help me with this?