service tasks are not stored in taskService so when using taskService to find what tasks are associated with given process instance it will give you only user tasks and not service tasks (or any other type of tasks).
Thanks for the response. That makes sense. Then is there any way to see that a process is still working in a Service Task? I'm using jBPM as a "wizard" workflow, so it would be useful to provide feedback when the "user" tries to progress a task and finds no tasks in the queue because the work item is still being processed by the Service Task.
Thanks for any help.