in the db, when a process instance forks a subprocess, the process instance keeps a key (_SUBPROCINST) to the subprocess instance. Good. But how to get it from the API ?
In my context, I only have a ref to the main processInstanceId, but this one forks a subprocess that leads to a task, and I need to make the correlation between this task and the main processInstanceId
...and by the way, congratulations to jbpm developers for the work they did in jBPM4, that's impressive :-)