BackgroundService.PersistCommandExecutorService

class PersistCommandExecutorService {
  Future<T> submit(Callable<T> task)
  Future<T> submit(Runnable task, T result)
  Future<?> submit(Runnable task)
  void execute(Runnable command)
  List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)
  List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
  T invokeAny(Collection<? extends Callable<T>> tasks)
  T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
  void shutdown()
  List<Runnable> shutdownNow()
  boolean awaitTermination(long timeout, TimeUnit unit)
  boolean isShutdown()
  boolean isTerminated()
}