Removing all queued tasks of an ThreadPoolExecutor

Question

i have this rather simple question about the ThreadPoolExecutor. I have the following situation: I have to consume objects from a queue, create the appropiate worker tasks f

Answer 1

I used to work on an app with long running threads. We do this at shutdown,

BlockingQueue queue = threadPool.getQueue();
List list = new ArrayList();
int tasks = queue.drainTo(list);

The list is saved to a file. On startup, the list is added back to the pool so we don't lose any jobs.