I just whipped it up so please poke at it. Basically, it implements an overflow thread pool that is used to feed the underlying ThreadPoolExecutor.
The javadocs for ThreadPoolExecutor are pretty clear that once corePoolSize threads have been created, new threads will only be created once the queue is full. So if you set core to 5 and max to 20, you'll never get your desired behaviour.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.