Information not available in TaskLifeCycleEventListener

Not Available fields in TaskLifeCycleEventListener
Customer needs to send some information to its external systems for real-time monitoring purposes. The structure that it needs to send is composed by task information previous to the change (retrieved in the before method) and the task information once the change has been performed (retrieved in the after method).

For each field, they want to know the following things:

• If they haven’t found any way to obtain it, is there any way to do it?
• If they have found a way to obtain it: is it a supported, correct way? If not, is there any way to do it?

As they said in the last meeting, they have some constraints in order to obtain all the fields:

• Not to access directly to jBPM database
• Not to persist/obtain information in/from a custom table