java/javase/17/docs/api/java.base/java/util/concurrent/ExecutorService.html#shutdown()" title="class or interface in java.util.concurrent" class="external-link">shutdown</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/ExecutorService.html#shutdownNow()" title="class or interface in java.util.concurrent" class="external-link">shutdownNow</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/concurrent/ExecutorService.html#submit(j