UnstoppableExecutorService implements ExecutorService { @Override public void shutdown() { executorCore.shutdown(); } UnstoppableExecutorService(ExecutorService executor); @Override Future<T> submit(Callable<T> task); @Override Future<T> submit(Runnable task, T result); @Override Future<?> submit(Runnable task); @Override List<Future<T>> invokeAll(Collection<? extends Callable<T>> tasks); @Override List<Future<T>> invokeAll(
      Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit); @Override T invokeAny(Collection<? extends Callable<T>> tasks); @Override T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit); @Override void execute(Runnable command); @Override void shutdown(); @Override List<Runnable> shutdownNow(); @Override boolean isShutdown(); @Override boolean isTerminated(); @Override boolean awaitTermination(long timeout, TimeUnit unit);  }
@Test(groups = "fast") public void testShutdown() throws Exception { executor.shutdown(); Assert.assertFalse(mockExecutor.isShutdown(), "mockExecutor should not be shutdown"); Assert.assertTrue(executor.isShutdown(), "executor should be shut down"); }