Stack Overflow when using WorkItemHandler within a backstream loop task

I used "looping" from example as a basis. I have a loop that repeats about 1000 times. After about 240 times the JVM crashes with StackOverflow.

My guess is that GOP (graph oriented programming) approach does not work very well with "looping" graphs.
I see stack recusrsion within manager.completeWorkItem() that recursively calls executeWorkItem() and so on