Add threads to Execution at runtime
Goal:
We need an API to add threads to an execution at runtime, e.g., for the TaskFarmStage
or the DivideAndConquerStage
..
Problem:
- We have no methods to add threads to an execution at runtime so far
- We need to make the lists of threads thread-safe and they should be changeable while iterating (no
ConcurrentModificationException
)