### Question:
App { public static void main(String[] args) { ExecutorService executor = null; try { var msgQueue = new MessageQueue(); LOGGER.info("Submitting TaskGenerators and ServiceExecutor threads."); final var taskRunnable1 = new TaskGenerator(msgQueue, 5); final var taskRunnable2 = new TaskGenerator(msgQueue, 1); final var taskRunnable3 = new TaskGenerator(msgQueue, 2); final var srvRunnable = new ServiceExecutor(msgQueue); executor = Executors.newFixedThreadPool(2); executor.submit(taskRunnable1); executor.submit(taskRunnable2); executor.submit(taskRunnable3); executor.submit(srvRunnable); LOGGER.info("Initiating shutdown." + " Executor will shutdown only after all the Threads are completed."); executor.shutdown(); if (!executor.awaitTermination(SHUTDOWN_TIME, TimeUnit.SECONDS)) { LOGGER.info("Executor was shut down and Exiting."); executor.shutdownNow(); } } catch (Exception e) { LOGGER.error(e.getMessage()); } }  static void main(String[] args);  }### Answer:
@Test void shouldExecuteApplicationWithoutException() { assertDoesNotThrow(() -> App.main(new String[]{})); }