Pradeep,
your problem is not very clear to me. It will be helpful if you can provide
some code that can get the exception.
However, whatever I understood, an approach may be to add a start event
listener on the join node and delete the tasks you do not need when there is a
request for rework. A sample code for the start event listener of the join node
may be like this:
| public void notify(EventListenerExecution execution) throws Exception {
| Task task = //find the task you need to invalidate
| //ugly casting. Is there a better way
| ((TaskImpl)task).setExecution((Execution)null);
| ((TaskImpl)task).setExecutionDbid(null);
| //now delete the task
| taskService.deleteTask(task.getId());
| }
|
You can always check and see if there is a better way to delete an existing
task.
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