How to reactive a cancelled futuretask in thread pool ?

Question

I use ThreadPoolExecutor to run some actions, at some time I cancelled some future tasks and stored it into a list to arrange some other tasks to do, and after that I want to reactive the saved cancelled future tasks.

But the problem is when I submit the task into the pool, it would not be executed, looks like the cancelled or done flag is saved and recognized by the thread executor, and thus that thread would not be called.

What should I do?

Answer 1

Use Runnable instead of threads. The execution pool can handle a Runnable the same way a Thread, but a Runnable could be rerunned number of times.