[jboss-user] [JBoss jBPM] - cancel timer failed...

[galanfish]

hi all, i am learning the lates PVM source code these days.
i've created a timer which will call signal to of the host execution to change the normal flow.
the process is like this:
start --> do some --> schedule(timer)&wait ---> timeout state ---> ...
  |                                |
  |                                + -----------> signal to cancel timer --->....

the problem is that, when i cancel the timer(call TimerSession#cancel(timer)), then exception cames out:

org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [org.jbpm.pvm.internal.job.TimerImpl#26]

i thought that i have to remove the reference of the to-be-removed-timer by the Execution instance first, then i call TimerSession#cancel(timer), but i can not find any API to remove a timer from an execution.
or i should modify the 'cascade' attribute in the hibernate configuration file of the class 'Execution'? but i'm affraid that the modification like this would bring more unknow mistake.
or i am totally wrong?

appreciate!!


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