Deadlock in ThreadPoolExecutor

Question

Encountered a situation when ThreadPoolExecutor is parked in execute(Runnable) function while all the ThreadPool threads are waiting i

Answer 1

As someone already mentioned, this sounds like normal behaviour, the ThreadPoolExecutor is just waiting to do some work. If you want to stop it, you need to call:

executor.shutdown()

to get it to terminate, usually followed by a executor.awaitTermination