Question

How do I create a ScheduledThreadPoolExecutor with a single thread without using the Executors.newSingleThreadScheduledExecutor ?

The reason I want to do so is that the later call returns an instance of DelegatedScheduledExecutorService and not an instance of ThreadPoolExecutor , so my attempts to be able to use methods such as getQueue() etc fails. If I can create a ThreadPoolExecutor directly that would help.

And the reason I want to getQueue() is that there is no other way to know the size of the tasks currently queued up in the executor.

Answer 1

Using the constructor of ScheduledThreadPoolExecutor.