How to wait for a ThreadPoolExecutor to finish

Question

My Question: How to execute a bunch of threaded objects on a ThreadPoolExecutor and wait for them all to finish before moving on?

I\'m new to Thread

Answer 1

You should loop on awaitTermination

ExecutorService threads;
// ...
// Tell threads to finish off.
threads.shutdown();
// Wait for everything to finish.
while (!threads.awaitTermination(10, TimeUnit.SECONDS)) {
  log.info("Awaiting completion of threads.");
}